As a leading provider of metallurgically bonded solutions, we offer A516 Gr.70 + 304 clad steel plates-a cost-efficient, high-performance answer to the dual challenges of structural pressure and aggressive corrosion.

 

GNEE is the world's leading manufacturer of roll-bonded clad plates. We offer clad plates, clad heads and clad cones from a single source. As a manufacturer with several decades of experience in roll bonding, we are your reliable partner in the linepipe, pressure vessel and apparatus industry. We understand our customers, provide the quality they need and have a large capacity to produce roll-bonded clad plates. These plates provide manufacturing and cost benefits during further processing.

Technical Composition & Structure

Base Material: ASTM A516 Grade 70
A standard for medium- and lower-temperature pressure vessels. It provides the necessary yield strength, tensile strength, and notch toughness to withstand high-pressure loads.

Cladding Material: AISI 304 Stainless Steel
The industry-standard "18/8" stainless steel provides a reliable protective barrier against organic and inorganic acids, oxidation, and atmospheric corrosion.

DEFINITION

» Metallurgically bonded composite of two or more layers

» The bond is created by high temperature and high pressure during hot rolling

» A typical combination is a thin corrosion-resistant alloy (CRA) as clad material and a thick carbon steel as base material

 

 

ASTM A516 Grade 70 Chemical Composition
Grade	The Element Max (%)
	C	Si	Mn	P	S
ASTM A516 grade 70
Thick <12.5mm	0.27 max	0.15–0.40	0.85–1.20	0.035	0.035
Thick12.5-50mm	0.27 max	0.15–0.40	0.85–1.20	0.035	0.035
Thick50-100mm	0.27 max	0.15–0.40	0.85–1.20	0.035	0.035
Thick100-200mm	0.27 max	0.15–0.40	0.85–1.20	0.035	0.035
Thick>200mm	0.27 max	0.15–0.40	0.85–1.20	0.035	0.035

 

Element	Percentage (%)
Carbon (C)	0.27 max
Manganese (Mn)	0.85–1.20
Phosphorus (P)	0.035 max
Sulfur (S)	0.035 max
Silicon (Si)	0.15–0.40
Nickel (Ni)	0.40 max (optional)
Chromium (Cr)	0.30 max (optional)
Molybdenum (Mo)	0.08 max (optional)

 

Grade		ASTM A516 Grade 70 Mechanical Property
	Thickness	Yield	Tensile	Elongation
ASTM A516 grade 70	mm	Min Mpa	Mpa	Min %
	6-40	260	485-620	21%
	40-100	260	485-620	17%

 

Grade	C	Mn	P	S	Si	Cr	Ni	Mo	Ni	Cooper
304(S30400)	0.07	2.0	0.045	0.030	0.75	17.5-19.5	8.0-10.5	-	0.10	-

Grade	Yield strength (N/mm2), min	Tensile strength (N/mm2), min	Elongationin 2 in. (50mm), %, min	Hardness, max Brinell Rockwell B	Cold bend
Austenitic (Chromium-Nickel) (Chromium-Manganese-Nickel)
304(S30400)	30 205	75 515	40	201 92	not required

 

 

As reliable partner for roll-bonded clad plates, our typical fields of applicationare the oil and gas production, refinery, petrochemical and chemical industryas well as flue gas desulphurisation plants and power plants.

 

OIL AND GAS PRODUCTION

» Clad flowlines» Catenary riser pipes» Slug catchers

REFINERIES, PETROCHEMICAL AND CHEMICAL INDUSTRY

» Fractionators» Vacuum towers» Coke drums» Process pipes» Columns» Pressure vessels» Reactors» Washers» Heat exchangers

FLUE GAS DESULPHURISATION PLANTS

» Flue gas channels» Chimneys» Flue gas scrubbers

POWER PLANTS

» Accumulator tanks» Other applications

ICEBREAKER VESSELS

» Ship hulls

 

Our roll-bonded plates and heads are used in chemical apparatus engineering and refineries, in the oil and gas industry, in oil sand processing (coke drums) and in the food industry. Clad plates are used in seawater desalination and flue gas desulfurization systems.

Widely used in natural environments such as bridge construction, roll-bonded clad plates offer outstanding properties including high aesthetic appeal and significantly reduced maintenance and servicing costs-making them the ideal choice for durable and demanding structures.

 

The food industry also benefits from our solutions: the stainless steel cladding meets the highest hygiene standards, while the carbon steel core enables rapid heating and efficient heat transfer.

ADVANTAGES OF ROLL-BONDED CLAD PLATES

Advantages in comparison to solid corrosion-resistant alloy (CRA) plates:

» Reduced material cost » Less weight due to reduction of wall thicknesses

» Reduction of weld length due to larger dimensions

» Lower cost of filler metal

» Superior heat conductivity

 

Advantages in comparison to explosive cladding:

» Higher bonding quality

» Reduction of weld length due to larger dimensions

» Use of thinner clad material is possible

» No welds in the claddings for wide plates

 

Advantages in comparison to overlay welding:

» Improved surface quality

» No dilution from the base material

» Homogenous chemical composition

 

CLAD LINEPIPE PLATES

We are the world's largest producer of roll-bonded clad linepipe plates.Roll-bonded clad plates are used for the manufacturing of clad linepipes.

 

HIGHEST RESISTANCE TO SOUR GAS

Roll-bonded clad plates are used for the manufacturing of clad linepipes. The sour gases occurring in linepipes used for the transport of oil and gas are highly corrosive.

Only the highest alloyed materials are capable to withstand this aggressive medium.

Our roll-bonded clad linepipe plates with corrosion-resistant claddings meet these extreme requirements. We are the world's largest producer of roll-bonded clad linepipe plates.

 

TMCP AND PROTECTIVE CLADDING

We provide thermomechanically rolled and accelerated cooled (TMCP) clad plates. This in-line process leads to high strength and excellent toughness combined with best weldability of the base material and maintains the extreme corrosion resistance of the protective cladding.

A typical material combination is X65 with nickel-based alloy 825 or 625 as cladding.

 

METALLURGICAL BOND

Our pipe partners process these clad plates into metallurgically bonded clad linepipes. The metallurgical bonding of the clad linepipes withstands the highest mechanical stress and dynamic loads, making the pipes especially suited to deep-sea applications under highly corrosive conditions.

 

REELING AND RISER PIPES

» Cost-efficient reeling of pipelines in comparison to on-board welding

» Roll-bonded clad plates for risers, bends and fittings

» Excellent properties of metallurgically bonded clad plates for the highest degree of compression strength

 

DELIVERY CONDITION

The conventional delivery condition of clad plates used for clad pipes is quenched and tempered. We also can provide thermomechanically rolled and accelerated cooled (TMCP) clad plates. This online processing leads to high strength and excellent toughness combined with best weldability of the base material and properly maintains corrosion properties of the clad material.

CLAD HEADS AND CONES

We produce clad heads and clad cones from roll-bonded clad plates in-house. We supply shell plates, heads and cones for pressure vessel manufacturing from a single source.

 

PLATES, HEADS AND CONES FROM ONE SOURCE

Benefits for our customers

» Advantages in processing, especially regarding welding when using the same steel for shell plates and heads

» Technical support and coordination from one research and quality department

» Coordinated production and delivery of shell plates and heads from a single source

» Reduced costs for our customers

 

CLADDINGS

We offer ferritic and austenitic stainless steels (Cr, CrNi, CrNiMo), nickel and nickel-based alloys, copper and copper-nickel-alloys as cladding materials for clad heads and cones.

 

PRODUCTS AND DIMENSIONS

	Type	Specification
	single‑piece heads (pressed)	diameter: max. 3,700 mm*thickness: max. 160 mm
	single‑piece heads (flanged)	diameter: max. 6,500 mm*thickness: max. 65 mm*from 3,400 – 6,500 mm with one weld seam
	multi‑piece heads (pressed)	diameter: max. 12,000 mmthickness: max. 120 mm
	multi‑piece cones (pressed)	diameter: max. 12,000 mmthickness: max. 120 mm
» Belt grinding or glass-bead blasting of clad surface » Edge preparation for welding » Heat treatment corresponding to material requirements; water quenching up to a diameter of 6,500 mm

Clad Steel Plate Quality

The high quality of roll-bonded clad plates is based on the mechanical properties of the base material, optimally combined with the corrosion resistance of the cladding material. Our materials fulfill the highest toughness properties (e.g. Drop Weight Tear Test, Charpy Impact Test and CTOD Test) and even HIC properties in the base material depending on the material combinations and plate thicknesses. A perfect surface finish completes this high-end product.

 

BOND QUALITY

The metallurgical bond between base and clad material is created by high pressure at high temperature during the hot rolling process. The bond is inseparable and far exceeds the minimum shear strength of 140 MPa required by ASTM.

CORROSION RESISTANCE The corrosion resistance of clad material is equivalent to that of solid material.

HEAT TREATMENT

Based on the chemical composition, the mechanical-technological properties of the base material as well as the corrosion properties of the clad material are adjusted by choosing the appropriate production route and heat treatment.

» As rolled with simulated heat treatment

» Normalizing rolled» Normalized (furnace)

» Normalized and tempered

» Quenched and tempered

» Thermomechanically rolled and accelerated cooled (TMCP)

 

SURFACE FINISH

The surface of the base material is usually "as rolled" or shot blasted. The surface of the clad material is usually ground with a grain size of 80. Other grain sizes are available on request. Any additional future surface treatment (e.g. fine grinding) of the clad surface by the customer must be indicated.

 

REFERENCE VALUES FOR ROUGHNESS

» Clad material: ferritic and austenitic stainless steel, nickel-based alloys

Item	Value
Grain size	80
Depth of roughness Rt in μm	< 40
Mean roughness Ra in μm	< 4.5

 

» Clad material: copper and copper alloys, nickel

Copper and copper alloys as well as nickel clad plates are ground with a grain size of 120.

Clad Steel Plate Process

 

DIMENSIONS

Depending on the type of clad material we can provide various dimensions. The clad materials mainly used are ferritic and austenitic stainless steels, nickel and nickel-based alloys and copper alloys.

 

» Clad material: ferritic and austenitic stainless steel

Item	Specification
Total thickness	6 - 150 mm
Clad thickness	1.5 - 10 mm
Width	max. 3,800 mm
Length	max. 15,000 mm ¹
Water quenched	max. 12,400 mm ¹
Weight per plate	min. 2 t / max. 20 t
Area	min. 6 m²

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» Clad material: copper alloys

Item	Specification
Total thickness	6 - 65 mm
Clad thickness	1.5 - 10 mm
Width	max. 3,800 mm
Length	max. 15,000 mm ¹
Water quenched	max. 12,400 mm ¹
Weight per plate	min. 2 t / max. 20 t
Area	min. 6 m²

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» Clad material: nickel alloys 625, 825

Item	Specification
Total thickness	6 - 120 mm
Clad thickness	1.5 - 10 mm
Width	max. 3,800 mm
Length	max. 15,000 mm ¹
Water quenched	max. 12,400 mm ¹
Weight per plate	min. 2 t / max. 14 t
Area	min. 6 m²

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¹ Further dimensions upon request

Materials

A roll-clad sheet or plate consists of a base and a coating layer material.

The base materials for our clad plates come 100% from our own steel production in Linz. Cladding materials are purchased in the form of slabs and plates from renowned manufacturers.

 

The base materials used are primarily structural steels, boiler and pressure vessel steels and fine-grained structural steels that are characterized by good weldability and workability.

 

As cladding materials, we supply ferritic and austenitic stainless steels, nickel and nickel-based alloys, copper and copper-nickel alloys that are characterized by their respective corrosion properties.

 

Further details can be found in the brochure linked below.

The surfaces of the base materials are usually supplied in as-rolled condition or are sandblasted.

The surface of the cladding material is usually ground. We supply ground with grain 80 as a standard. Further grindings can be supplied upon request.

clad steel plate BASE MATERIALS

We mainly use

» Structural steels

» Pressure vessel steels

» Linepipe steels

 

Depending on the requirements of the respective standards and customer specifications as well as on the required corrosion resistance of the cladding materials, we provide the following delivery conditions:

» As rolled with simulated testing

» Normalizing rolled

» Normalized (furnace)

» Normalized and tempered

» Quenched and tempered

» Thermomechanically rolled and accelerated cooled (TMCP)

 

BASE MATERIALS: STRUCTURAL STEELS AND PRESSURE VESSEL STEELS (EN 10025-2, EN 10028-2, EN 10028-3)

Standard	Steel grade	Chemical composition (heat analysis) %								Mechanical properties
		C ¹) max.	Si max.	Mn max.	P max.	S max.	Cr max.	Ni max.	Mo max.	Yield strength ¹) min.[MPa]	Tensile strength ¹) [MPa]	Comparable grade ASTM-steel grade
EN 10025-2	S235JR	0.17	-	1.40	0.035	0.035	-	-	-	235	360 - 510	-
	S355JR	0.24	0.55	1.60	0.035	0.035	-	-	-	355	510 - 680	-
EN 10028-2	P235GH	0.16	0.35	0.60 - 1.20	0.025	0.010	0.30	0.30	0.08	235	360 - 480	A285 GradeC
	P265GH	0.20	0.40	0.80 - 1.40	0.025	0.010	0.30	0.30	0.08	265	410 - 530	A516 Grade60
	P295GH	0.08 - 0.20	0.40	0.90 - 1.50	0.025	0.010	0.30	0.30	0.08	295	460 - 580	A516 Grade65
	P355GH	0.10 - 0.22	0.60	1.10 - 1.70	0.025	0.010	0.30	0.30	0.08	355	510 - 650	A516 Grade70
	16Mo3	0.12 - 0.20	0.35	0.40 - 0.90	0.025	0.010	0.30	0.30	0.25 - 0.35	275	440 - 590	-
	20MnMoNi4-5	0.15 - 0.23	0.40	1.00 - 1.50	0.020	0.010	0.20	0.40 - 0.80	0.45 - 0.60	470	590 - 750	A533 Type B Class2
	13CrMo4-5	0.08 - 0.18	0.35	0.40 - 1.00	0.025	0.010	0.70 - 1.15	-	0.40 - 0.60	300	450 - 600	A387 Grade12 Class2
	10CrMo9-10	0.08 - 0.14	0.50	0.40 - 0.80	0.020	0.010	2.00 - 2.50	-	0.90 - 1.10	310	480 - 630	-
	12CrMo9-10	0.10 - 0.15	0.30	0.30 - 0.80	0.015	0.010	2.00 - 2.50	0.30	0.90 - 1.10	355	540 - 690	A387 Grade22 Class2
	13CrMoV9-10	0.11 - 0.15	0.10	0.30 - 0.60	0.015	0.005	2.00 - 2.50	0.25	0.90 - 1.10	455	600 - 780	A542 Type D Class4
EN 10028-3	P275 NH	0.16	0.40	0.80 - 1.50	0.025	0.010	0.30	0.50	0.08	275	390 - 510	A516 Grade60
	P275 NL1	0.16	0.40	0.80 - 1.50	0.025	0.008	0.30	0.50	0.08	275	390 - 510	A516 Grade60
	P275 NL2	0.16	0.40	0.80 - 1.50	0.020	0.005	0.30	0.50	0.08	275	390 - 510	A516 Grade60
	P355 NH	0.18	0.50	1.10 - 1.70	0.025	0.010	0.30	0.50	0.08	355	490 - 630	A516 Grade70
	P355 NL1	0.18	0.50	1.10 - 1.70	0.025	0.008	0.30	0.50	0.08	355	490 - 630	A516 Grade70
	P355 NL2	0.18	0.50	1.10 - 1.70	0.020	0.005	0.30	0.50	0.08	355	490 - 630	A516 Grade70
	P460 NH	0.20	0.60	1.10 - 1.70	0.025	0.010	0.30	0.80	0.10	460	570 - 730	A572 Grade65
	P460 NL1	0.20	0.60	1.10 - 1.70	0.025	0.008	0.30	0.80	0.10	460	570 - 730	A572 Grade65
	P460 NL2	0.20	0.60	1.10 - 1.70	0.020	0.005	0.30	0.80	0.10	460	570 - 730	A572 Grade65

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BASE MATERIALS: STRUCTURAL STEELS AND PRESSURE VESSEL STEELS (ASTM)

Standard	Steel grade	Chemical composition (heat analysis) %								Mechanical properties		Comparable steel grade of EN 10028
		C ¹)²) max.	Si max.	Mn ²) max.	P max.	S max.	Cr max.	Ni max.	Mo max.	Yield strength ¹) min.[MPa]	Tensile strength ¹) [MPa]
ASTM	A285 GradeC	0.28	-	0.90	0.025	0.025	-	-	-	205	380 - 515	P235GH
	A516 Grade60	0.21	0.15 - 0.40	0.60 - 0.90	0.025	0.025	-	-	-	220	415 - 550	P275
	A516 Grade65	0.24	0.15 - 0.40	0.85 - 1.20	0.025	0.025	-	-	-	240	450 - 585	P355
	A516 Grade70	0.27	0.15 - 0.40	0.85 - 1.20	0.025	0.025	-	-	-	260	485 - 620	P355
	A572 Grade65 Type 1	0.23	0.40	1.65	0.040	0.050	-	-	-	450	≥ 550	P460
	A204 Grade A	0.18	0.15 - 0.40	0.90	0.025	0.025	-	-	0.45 - 0.60	255	450 - 585	16Mo3
	A204 Grade B	0.20	0.15 - 0.40	0.90	0.025	0.025	-	-	0.45 - 0.60	275	485 - 620	16Mo3
	A302 Grade B	0.20	0.15 - 0.40	1.15 - 1.50	0.025	0.025	-	-	0.45 - 0.60	345	550 - 690	18MnMo4-5
	A533 Type B Class1	0.25	0.15 - 0.40	1.15 - 1.50	0.025	0.025	-	0.40 - 0.70	0.45 - 0.60	345	550 - 690	20MnMoNi4-5
	A533 Type B Class2	0.25	0.15 - 0.40	1.15 - 1.50	0.025	0.025	-	0.40 - 0.70	0.45 - 0.60	485	620 - 795	20MnMoNi4-5
	A387 Grade11 Class2	0.05 - 0.17	0.50 - 0.80	0.40 - 0.65	0.025	0.025	1.00 - 1.50	-	0.45 - 0.65	310	515 - 690	13CrMoSi5-5
	A387 Grade12 Class2	0.05 - 0.17	0.15 - 0.40	0.40 - 0.65	0.025	0.025	0.80 - 1.15	-	0.45 - 0.60	275	450 - 585	13CrMo4-5
	A387 Grade22 Class2	0.05 - 0.15	0.50	0.30 - 0.60	0.025	0.025	2.00 - 2.50	-	0.90 - 1.10	310	515 - 690	12CrMo9-10
	A542 Type D Class4	0.11 - 0.15	0.10	0.30 - 0.60	0.015	0.010	2.00 - 2.50	0.25	0.90 - 1.10	380	585 - 760	13CrMoV9-10
	A841 Grade A Class1	0.20	0.15 - 0.50	0.70 - 1.60	0.030	0.030	0.25	0.25	0.08	345	485 - 620	P355

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BASE MATERIALS: FITTING STEELS AND LINEPIPE STEELS (ASTM, API 5L, DNVGL-ST-F101)

Standard	Steel grade	Chemical composition (heat analysis) %										Mechanical properties		Comparable steel grade of ASTM / DNVGL / API
		C ¹)²) max.	Si max.	Mn ²) max.	P max.	S max.	Cr max.	Ni max.	Cu max.	Mo max.	V max.	Yield strength ¹) min.[MPa]	Tensile strength ¹) [MPa]
ASTM	A106 GradeB	0.30	0.10	0.29 - 1.06	0.035	0.035	0.40	0.40	0.40	0.15	0.08	240	≥ 415	ASTM A516 Grade65
	A672 GradeC60	0.21	0.15 - 0.40	0.60 - 0.90	0.025	0.025	-	-	-	-	-	220	415 - 550	ASTM A516 Grade60
	A672 GradeC70	0.27	0.15 - 0.40	0.85 - 1.20	0.025	0.025	-	-	-	-	-	260	485 - 620	ASTM A516 Grade70
ASTM A860	WPHY 42	-	-	-	-	-	-	-	-	-	-	290	415 - 585	-
	WPHY 52	0.20	0.15 - 0.40	1.00 - 1.45	0.030	0.010	0.30	0.50	0.35	0.25	0.10	360	455 - 625	-
	WPHY 60	0.20	0.15 - 0.40	1.00 - 1.45	0.030	0.010	0.30	0.50	0.35	0.25	0.10	415	515 - 690	-
	WPHY 65	0.20	0.15 - 0.40	1.00 - 1.45	0.030	0.010	0.30	0.50	0.35	0.25	0.10	450	530 - 705	-
API 5L	GradeB – PSL2	0.22	0.45	1.20	0.025	0.015	-	-	-	-	-	245 - 450	415 - 655	DNVGL SAWL 245
	X52 – PSL2	0.22	0.45	1.40	0.025	0.015	-	-	-	-	-	360 - 530	460 - 760	DNVGL SAWL 360
	X60 – PSL2	0.12	0.45	1.60	0.025	0.015	-	-	-	-	-	415 - 565	520 - 760	DNVGL SAWL 415
	X65 – PSL2	0.12	0.45	1.60	0.025	0.015	-	-	-	-	-	450 - 600	535 - 760	DNVGL SAWL 450
DNVGL-ST-F101	SAWL 245	0.12	0.40	1.25	0.020	0.010	0.30	0.30	0.35	0.10	0.04	245 - 450	415 - 760	API 5L GradeB
	SAWL 360	0.12	0.45	1.65	0.020	0.010	0.50	0.50	0.50	0.50	0.05	360 - 525	460 - 760	API 5L X52
	SAWL 415	0.12	0.45	1.65	0.020	0.010	0.50	0.50	0.50	0.50	0.08	415 - 565	520 - 760	API 5L X60
	SAWL 450	0.12	0.45	1.65	0.020	0.010	0.50	0.50	0.50	0.50	0.10	450 - 570	535 - 760	API 5L X65

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CLADDINGS: STAINLESS STEELS AND HEAT-RESISTANT STEELS

We mainly use

» Ferritic and austenitic stainless steels and heat-resistant steels

» Nickel and nickel-based alloys

» Copper and copper-alloys

 

EN 10088 / SEW 470 Grades

Standard	EN material number	Steel grade	Chemical composition (heat analysis) % (extract)									Mean pitting resistance equivalent number (PREN) Cr+3.3Mo+16N [%]	Comparable ASTM A240 / ASME SA240 type
			C max.	Si max.	Mn max.	P max.	S max.	Cr	Ni	Mo	Others
EN 10088	1.4000	X6Cr13	0.08	1.0	1.0	0.040	0.030	12.0 - 14.0	-	-	-	-	410S
	1.4301	X5CrNi18-10	0.07	1.0	2.0	0.045	0.030	17.5 - 19.5	8.0 - 10.5	-	N ≤ 0.10	-	304
	1.4306	X2CrNi19-11	0.03	1.0	2.0	0.045	0.030	18.0 - 20.0	10.0 - 12.0	-	N ≤ 0.10	-	304L
	1.4541	X6CrNiTi18-10	0.08	1.0	2.0	0.045	0.030	17.0 - 19.0	9.0 - 12.0	-	5xC < Ti ≤ 0.70	-	321
	1.4550	X6CrNiNb18-10	0.08	1.0	2.0	0.045	0.015	17.0 - 19.0	9.0 - 12.0	-	10xC < Nb ≤ 1.00	-	347
	1.4401	X5CrNiMo17-12-2	0.07	1.0	2.0	0.045	0.030	16.5 - 18.5	10.0 - 13.0	2.0 - 2.5	N ≤ 0.10	25	316
	1.4404	X2CrNiMo17-12-2	0.03	1.0	2.0	0.045	0.030	16.5 - 18.5	10.0 - 13.0	2.0 - 2.5	N ≤ 0.10	25	316L
	1.4571	X6CrNiMoTi17-12-2	0.08	1.0	2.0	0.045	0.030	16.5 - 18.5	10.5 - 13.5	2.0 - 2.5	5xC < Ti ≤ 0.70	25	316Ti
	1.4432	X2CrNiMo17-12-3	0.03	1.0	2.0	0.045	0.030	16.5 - 18.5	10.5 - 13.0	2.5 - 3.0	N ≤ 0.10	27	316L Mod Mo ≥ 2.5
	1.4435	X2CrNiMo18-14-3	0.03	1.0	2.0	0.045	0.030	17.0 - 19.5	12.5 - 15.0	2.5 - 3.0	N ≤ 0.10	28	316L Mod Mo ≥ 2.5
	1.4429	X2CrNiMoN17-13-3	0.03	1.0	2.0	0.045	0.015	16.5 - 18.5	11.0 - 14.0	2.5 - 3.0	N = 0.12 - 0.22	29	316LN Mod Mo ≥ 2.5
	1.4438	X2CrNiMo18-15-4	0.03	1.0	2.0	0.045	0.030	17.5 - 19.5	13.0 - 16.0	3.0 - 4.0	N ≤ 0.10	31	317L
	1.4439	X2CrNiMoN17-13-5	0.03	1.0	2.0	0.045	0.030	16.5 - 18.5	12.5 - 14.5	4.0 - 5.0	N = 0.12 - 0.22	35	317LMN
SEW 470	1.4828	X15CrNiSi20-12	0.20	1.5 - 2.5	2.0	0.045	0.015	19.0 - 21.0	11.0 - 13.0	-	N ≤ 0.10	-	-

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ASTM A240 / ASME SA240 Grades

Standard	UNS number	Steel grade	Chemical composition (heat analysis) % (extract)									Mean pitting resistance equivalent number (PREN) Cr+3.3Mo+16N [%]	Comparable grade of EN 10088
			C max.	Si max.	Mn max.	P max.	S max.	Cr	Ni	Mo	Others
ASTM A240 and ASME SA240	S41008	410S	0.08	1.00	1.0	0.040	0.030	11.5 - 13.5	max. 0.60	-	-	-	1.4000
	S30400	304	0.07	0.75	2.0	0.045	0.030	17.5 - 19.5	8.0 - 10.5	-	N ≤ 0.10	-	1.4301
	S30403	304L	0.03	0.75	2.0	0.045	0.030	17.5 - 19.5	8.0 - 12.0	-	N ≤ 0.10	-	1.4306
	S32100	321	0.08	0.75	2.0	0.045	0.030	17.0 - 19.0	9.0 - 12.0	-	5x(C+N) < Ti ≤ 0.70	-	1.4541
	S34700	347	0.08	0.75	2.0	0.045	0.030	17.0 - 19.0	9.0 - 13.0	-	10xC < Nb ≤ 1.00	-	1.4550
	S31600	316	0.08	0.75	2.0	0.045	0.030	16.0 - 18.0	10.0 - 14.0	2.0 - 3.0	N ≤ 0.10	25	1.4401
	S31603	316L	0.03	0.75	2.0	0.045	0.030	16.0 - 18.0	10.0 - 14.0	2.0 - 3.0	N ≤ 0.10	25	1.4404
	-	316L Mod Mo ≥ 2.5	0.03	0.75	2.0	0.045	0.030	16.0 - 18.0	10.0 - 14.0	2.5 - 3.0	N = 0.10 - 0.16	27	1.4432/1.4435
	S31635	316Ti	0.08	0.75	2.0	0.045	0.030	16.0 - 18.0	10.0 - 14.0	2.0 - 3.0	5x(C+N) < Ti ≤ 0.70	25	1.4571
	S31653	316LN	0.03	0.75	2.0	0.045	0.030	16.0 - 18.0	10.0 - 14.0	2.0 - 3.0	N = 0.10 - 0.16	27	-
	-	316LN Mod Mo ≥ 2.5	0.03	0.75	2.0	0.045	0.030	16.0 - 18.0	10.0 - 14.0	2.5 - 3.0	N = 0.10 - 0.16	29	1.4429
	S31703	317L	0.03	0.75	2.0	0.045	0.030	18.0 - 20.0	11.0 - 15.0	3.0 - 4.0	N ≤ 0.10	31	1.4438
	S31726	317LMN	0.03	0.75	2.0	0.045	0.030	17.0 - 20.0	13.5 - 17.5	4.0 - 5.0	N = 0.10 - 0.20	35	1.4439

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CLADDINGS: SPECIAL STEELS, NON-FERROUS METALS AND ALLOYS

ASTM	Alloy type	Chemical composition (heat analysis) % (extract)									Mean pitting resistance equivalent number (PREN) Cr+3.3Mo+16N [%]	EN material number	Comparable grades
		C max.	Si max.	Mn max.	P max.	S max.	Cr	Ni	Mo	Others			EN / DIN / SEW	VdTÜV material sheet
B 409 UNS N08800	Alloy 800	0.10	1.00	1.5	0.045	0.015	19.0 - 23.0	30.0 - 35.0	-	Al = 0.15 - 0.60 Ti = 0.15 - 0.60 Cu ≤ 0.75, Fe ≥ 39.5	-	1.4876	SEW 470	412
A 240/A 240M UNS N08904	Alloy 904 L	0.02	1.00	2.0	0.045	0.035	19.0 - 23.0	23.0 - 28.0	4.0 - 5.0	Cu = 1.0 - 2.0 N ≤ 0.10	36	1.4539	-	421
B 709 UNS N08028	Alloy 28	0.03	1.00	2.5	0.030	0.030	26.0 - 28.0	29.5 - 32.5	3.0 - 4.0	Cu = 0.60 - 1.40	39	1.4563	EN 10088	-
B 677 UNS N08926	Alloy 926	0.02	0.50	2.0	0.030	0.010	19.0 - 21.0	24.0 - 26.0	6.0 - 7.0	Cu = 0.50 - 1.50 N = 0.15 - 0.25	44	1.4529	-	502
B 463 UNS N08020	Alloy 20	0.07	1.00	2.0	0.045	0.035	19.0 - 21.0	32.0 - 38.0	2.0 - 3.0	Cu = 3.0 - 4.0 8xC < (Nb+Ta) < 1.0	28	2.4660	DIN 17744	-
B 424 UNS N08825	Alloy 825	0.05	0.50	1.0	-	0.030	19.5 - 23.5	38.0 - 46.0	2.5 - 3.5	Cu = 1.5 - 3.0 Ti = 0.60 - 1.20 Fe > 22.0, Al < 0.2	31	2.4858	DIN 17744	432
B 443 UNS N06625	Alloy 625	0.10	0.50	0.5	0.015	0.015	20.0 - 23.0	> 58.0	8.0 - 10.0	Fe < 5.0, (Co < 1.0) Nb = 3.15 - 4.15 Al < 0.40, Ti < 0.40	51	2.4856	DIN 17744	499
B 575 UNS N06022	Alloy C 22	0.015	0.08	0.5	0.020	0.020	20.0 - 22.5	rest	12.5 - 14.5	Fe = 2.0 - 6.0 W = 2.5 - 3.5 V < 0.35, Co < 2.50	66	2.4602	DIN 17744	479
B 575 UNS N06455	Alloy C 4	0.015	0.08	1.0	0.040	0.030	14.0 - 18.0	rest	14.0 - 17.0	Fe < 3.0 Ti < 0.70 Co < 2.0	67	2.4610	DIN 17744	424
B 575 UNS N10276	Alloy C 276	0.01	0.08	1.0	0.040	0.030	14.5 - 16.5	rest	15.0 - 17.0	W = 3.0 - 4.5 Fe = 4.0 - 7.0 Co < 2.5, V < 0.35	68	2.4819	DIN 17744	400
B 575 UNS N06059	Alloy 59	0.01	0.10	0.5	0.015	0.010	22.0 - 24.0	rest	15.0 - 16.5	Al = 0.1 - 0.4 Fe < 1.5, Co < 0.3 Cu < 0.5	75	2.4605	DIN 17744	505
B 333 UNS N10665	Alloy B 2	0.02	0.10	1.0	0.040	0.030	1.0	rest	26.0 - 30.0	Fe < 2.0 Co < 1.00	-	2.4617	DIN 17744	436
B 168 UNS N06600	Alloy 600	0.15	0.50	1.0	-	0.015	14.0 - 17.0	> 72.0	-	Fe = 6.0 - 10.0 Cu < 0.50	-	2.4816	DIN 17742	305
B 127 UNS N04400	Alloy 400	0.30	0.50	2.0	-	0.024	-	> 63.0	-	Cu = 28.0 - 34.0 Fe < 2.5	-	2.4360	DIN 17743	263
B 162 UNS N02200	Alloy 200	0.15	0.35	0.35	-	0.010	-	> 99.00	-	Fe < 0.4 Cu < 0.25	-	2.4066	DIN 17740	-
B 162 UNS N02201	Alloy 201	0.02	0.35	0.35	-	0.010	-	> 99.00	-	Fe < 0.4 Cu < 0.25	-	2.4068	-	345
B 152 UNS C10300	Copper	-	-	-	0.001 - 0.005	-	-	-	-	Cu > 99.95	-	2.0070	DIN 1787	-
B 152 UNS C12200	Copper	-	-	-	0.015 - 0.040	-	-	-	-	Cu > 99.90	-	CW 024 A	-	-
B 171 UNS C70600	Alloy CuNi 90/10	-	-	1.0	-	-	-	9.0 - 11.0	-	Fe = 1.0 - 1.8, Cu rest, Zn < 1.0, Pb < 0.05	-	CW 352 H	EN 1652	420
B 171 UNS C71500	Alloy CuNi 70/30	0.05	-	1.0	-	-	-	29.0 - 33.0	-	Fe = 0.40 - 1.0, Cu rest Zn < 1.0, Pb < 0.05	-	CW 354 H	-	-

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Typical Products

Product	Steel grade	Thickness(mm)
Pipeline for Strongly acidic gas	S31254+Q345B	8-20
Nickel Based Alloy Clad Steel	825+X65	3+22
Cold-Rolled Steel Sheet for Elevator	304L+BDT01+304L
Special Ferritic Stainless Steel Clad Plate for the Application of Precast Concrete Mold	Special ferritic stainless stee+Q345	10
Duplex Stainless Steel Clad Plate	S32205 +Q345C	4+20
Clad Plate for Wear-Resisting Pipe 30Cr13+Q235B	30Cr13+Q235B	6+8
Clad plate for corrosion resistant pipeline	316L+Q345B	3+10

 

STEEL GRADE

Q235B+304,Q345B+304,Q235B+304L,Q345B+304L,S355JR+410,A537CL1+410,A516Gr70+410, A516Gr70(NACE)+410,P265GH+410,S355JR+304,S355JR+304L,S355JR+316L,A516Gr70+304, A516Gr70+304L,A516Gr70+316,A516Gr70+316L,A537CL1+304,A537CL1+304L,A537CL1 +316L,P265GH+904L,A516Gr70+904L,A537CL1+904L

 

 

 

 

 

 

Product Application

Electrical Engineering

For the steel liners used in sediment bottom holes, diversion bottom outlets, lock culverts and gates in hydropower industry, the basic requirements are high wear resistance, good impact resistance and adequate corrosion resistance. The liners are mainly used for silos, hoppers, chutes, dehydrators and other parts.

Due to the more strictly enviromental protection policies, some air desulfurization projects are applied in order to reduce SO2 in the air. For those projects, the clad steel plates will become the preferred material of thermal power plants.

 

Pressure Vessels, Storage Tanks

Clad steel plates can reduce the consumption of high price metals or alloys, and reduce project cost significantly. Clad steel has excellent mechanical properties. The base material and cladding layer can form strongly metallurgical combination.

Clad steel can be processed with a variety of hot pressing, bending, cutting, welding, etc. According to the applications of storage tanks, the base material can be selected from Q235B, Q345R carbon steels and other vessel steels. The cladding layer can be austenitic stainless steels such as 304, 316L, duplex stainless steel, and so on.

The materials and the thicknesses can be freely combined to meet the property requirements of the different chemical storage tanks.

 

Petrochemical Industry

Clad steel has been widely used as containers, towers, heat exchangers, pipes in petrochemical equipment. For refining high-sulfur, high-salt and high acidity crude oil, clad steel can replace carbon steel and stainless steel used in the main refining equipment such as vacuum towers, absorption towers, fractionating towers, and the stabilizers, which increases corrosion resistance, heat resistance, as well as the service life of equipment. The advantages of clad steel are more obvious in the development of oil and natural gas fields with high H2 S, SO and nitrogen ions.

 

Coal Chemical Industry

China has plentiful coal resources and the large-scale coal industry is demanding new energy-saving materials for its applications. Stainless steel clad plates have been widely used in the equipment of coal chemical gasification, liquefaction, coking and coal tar chemicals for their excellent performance.

 

Constructional Molding Plate

With the development of the construction industry, constructional mold plates will be extensively used. Currently carbon steel is mainly used as constructional mold plates on market.

Some pure ferritic and austenitic stainless steel are used in some high-end products. But the disadvantages of the carbon steel, pure ferritic stainless steel or pure austenitic stainless steel limit its use in the field of the constructional mold plates. For carbon steel, it has poor corrosion resistance, and low surface quality.

For ferritic stainless steel, it has very poor low temperature toughness, while for austenitic stainless steel, it does not have ferromagnetism which is important for the installation of side mold plates.

With the combination of carbon steel and ferritic stainless steel, the clad steel can obtain the best match of the corrosion resistance and toughness, and therefore it may have bright application prospects.

 

Mobile Containers and Ancillary Transport Equipment

For manufacturing tanks or dedicated tankers for glycol, olive oil, chemicals and other liquids.

 

Used for	Stirred reactors, towers, heat exchangers, precipitation tanks, desalination equipment, dyeing equipment, evaporators, boiler, pressure shell, steam generators, guard plate, pipeline, ship plate, offshore construction, etc.
Applications	Chemical, oil and gas, metallurgy, shipbuilding, power plant, etc.
Base plate Material	Sedimentary Steel			Chromium-molybdenum Steel			Stainless Steel
	A516 Gr.60/70 A516 Gr.70 A572 Gr.50 A302 Gr.B/C A533 Gr.B/C A516 Gr.60/70			A387 Gr.12-2 A387 Gr.11-2 A387 Gr.22-2			SS304 SS316L
Flyer plate Material	Chromium Stainless Steels	Austenitic Stainless Steels	Super Austenitic Stainless Steels	Bidirectional Stainless Steels	Nickel Alloys	Titanium Alloys	Copper Alloys	Zirconium Alloys	Aluminum Alloys
	SS430Ti SS430	SS304 S304L SS321 SS316L SS317L SS310S	S31254 UNS N08904 UNS N08367	S31803 S32205 S32304 S32507	UNS N02200 UNS N02200 UNS N04400 UNS N10276 UNS N06022 UNS N06455 UNS N06600 UNS N06625 UNS N08800 UNS N08810 UNS N08825	Grade 1 Grade 2 Grade 3 Grade 4 Grade 9 Grade 11	C11000 C10100 C26800 C26000 C70600 C71500 C46400 C70600 C71500	UNS R60700 UNS R60702 UNS R60705	1060

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