A572 High-Strength Low-Alloy Structural Plate

 

A572 High-Strength Low-Alloy (HSLA) Structural Plate is a premium structural steel product that complies with the ASTM A572/A572M-21 standard, developed by ASTM International for high-performance structural applications worldwide.

 

As a professional A572 high-strength low-alloy structural plate supplier, GNEE STEEL provides high-quality A572 plates with stable performance, complete specifications, and reliable quality, fully meeting the strict requirements of various engineering projects in North America, Europe, and global markets.

 

A572 is a columbium-vanadium micro-alloyed HSLA steel, featuring low carbon content and added micro-alloying elements (columbium, vanadium, titanium, nitrogen) to achieve excellent comprehensive performance without sacrificing weldability and formability.

 

It covers five core grades (42, 50, 55, 60, 65), where the grade number represents the minimum yield strength in ksi (1 ksi ≈ 6.895 MPa) - for example, A572 Grade 50 has a minimum yield strength of 50 ksi (345 MPa), making it the most widely used grade in global structural engineering.

 

A572 plates are designed for bolted, welded, and riveted structures, suitable for bridges, buildings, heavy machinery, and other high-load scenarios, and are recognized for their cost-effectiveness and versatility in the global steel market.

 

A572 MTC

 

The chemical composition of A572 High-Strength Low-Alloy Structural Plate is strictly controlled in accordance with the ASTM A572/A572M-21 standard, which is the key to ensuring its strength, toughness, and weldability.

 

A572 Grade	Thickness (in/mm)	C (Max)	Mn (Max)	P (Max)	S (Max)	Si	Nb (Max)	V (Max)	Ti (Max)	N (Max)
Grade 42 (290 MPa)	All (≤150mm)	0.21	1.35	0.030	0.030	0.15-0.40	0.05	0.10	0.05	0.012
Grade 50 (345 MPa)	All (≤100mm)	0.23	1.35	0.030	0.030	0.15-0.40	0.05	0.10	0.05	0.012
Grade 55 (380 MPa)	All (≤50mm)	0.25	1.35	0.030	0.030	0.15-0.40	0.05	0.10	0.05	0.012
Grade 60 (415 MPa)	All (≤32mm)	0.26	1.35	0.030	0.030	0.40	0.05	0.10	0.05	0.012
Grade 65 (450 MPa)	≤0.5" (≤12.7mm)	0.26	1.35	0.030	0.030	0.40	0.05	0.10	0.05	0.012
	0.5"-1.25" (12.7-32mm)	0.23	1.65	0.030	0.030	0.40	0.05	0.10	0.05	0.012

 

 

The following table details the mechanical properties of all five A572 grades, a key reference for customers choosing A572 HSLA structural plate:

A572 Grade	Minimum Yield Strength (ksi/MPa)	Tensile Strength (ksi/MPa)	Minimum Elongation (8", %)	Impact Temperature (°C)	Impact Energy (KV, ≥J)	Maximum Thickness (in/mm)	Delivery Condition
Grade 42	42/290	60-75/414-517	20	20 (Room Temperature)	27	6"/150	Hot Rolled (AR) / Normalized (N)
Grade 50	50/345	65-85/448-586	18	20 (Room Temperature)	27	4"/100	Hot Rolled (AR) / Normalized (N)
Grade 55	55/380	70-90/483-621	17	20 (Room Temperature)	27	2"/50	Normalized (N)
Grade 60	60/415	75-95/517-655	16	20 (Room Temperature)	27	1.25"/32	Normalized (N)
Grade 65	65/450	80-100/552-690	15	20 (Room Temperature)	27	1.25"/32	Normalized (N)

 

 

As a high-performance A572 high-strength low-alloy structural plate, it has significant advantages over ordinary carbon structural steel (such as A36) and other HSLA steels, making it the first choice for various high-load engineering projects. GNEE STEEL's A572 products further highlight these advantages through strict quality control:

 

Excellent Strength-to-Weight Ratio: With yield strengths ranging from 290 MPa to 450 MPa, A572 plates are 20%-40% stronger than ordinary carbon steel (A36, yield strength 250 MPa). This allows the use of thinner sections to reduce structural weight while ensuring load-bearing capacity, reducing material consumption and transportation costs by 10%-15% compared to A36 steel.

 

Superior Weldability & Formability: Low carbon equivalent and optimized chemical composition make A572 plates easy to weld (arc welding, gas welding, MIG welding, etc.) without preheating (or low preheating temperature), facilitating on-site assembly and complex structural fabrication. They also have good formability, allowing for cutting, bending, punching, and machining to meet the customized needs of various structural components.

 

Cost-Effective & High Value: As a cost-effective HSLA steel, A572 balances high performance and low cost. It eliminates the need for expensive alloy materials while meeting high-load requirements, reducing the overall cost of projects (material, transportation, installation). Grade 50, in particular, is widely used due to its optimal cost-performance ratio.

 

Stable Comprehensive Performance: The addition of micro-alloying elements (Nb, V, Ti) ensures uniform grain structure, making A572 plates have excellent toughness, fatigue resistance, and corrosion resistance. They can adapt to outdoor, industrial, and mild marine environments, and can be further processed (galvanized, painted) to enhance corrosion resistance.

 

Strict Standard Compliance: Fully complies with the ASTM A572/A572M-21 standard, with optional ultrasonic flaw detection (ASTM A435) and mill test certificate (EN 10204 3.1/3.2). GNEE STEEL also provides third-party testing services (SGS, BV) if required, ensuring product compliance with international project requirements and CE marking for European markets.

 

Versatile Grade Options: Five grades (42, 50, 55, 60, 65) cover different strength requirements, from low-load civilian buildings to high-load bridges and heavy machinery, meeting the diverse needs of various projects. Grade 50 and Grade 60 are the most commonly used grades for global export projects.

 

 

Due to their excellent comprehensive performance, A572 high-strength low-alloy structural plates are widely used in various structural engineering fields, covering construction, machinery, transportation, energy, and other industries. GNEE STEEL provides customized specifications (thickness, width, length) to meet the needs of different projects:

 

Construction & Bridge Engineering: High-rise building frames, long-span bridges, bridge supports, steel structures for industrial plants, and residential buildings. A572 Grade 50 is especially suitable for bridge construction due to its balanced strength and weldability, while Grade 60 is used for high-rise building cores and large-span structures.

 

Heavy Machinery & Equipment: Crane booms, excavator structures, loaders, mining equipment, and engineering machinery parts. A572's high strength and formability ensure the durability of heavy-load equipment in harsh working conditions, reducing equipment weight and improving operational efficiency.

 

Transportation & Marine Engineering: Ship hulls, ship decks, container frames, railway carriages, and highway guardrails. A572 plates have good corrosion resistance and toughness, adapting to marine and long-distance transportation environments. With primer coating or quenched-tempered treatment, they can be used in more demanding marine scenarios.

 

Energy & Power Engineering: Wind power towers, power plant structural components, boiler supports, and oil and gas pipelines. A572 meets the high-load and outdoor harsh environment requirements of energy projects, ensuring long-term stable operation. Grade 50 is widely used in wind power tower manufacturing due to its cost-effectiveness.

 

Other Fields: Storage tanks, pressure vessels, hydraulic structures, and light steel structures. A572's versatility and cost-effectiveness make it suitable for various low-to-high load structural scenarios, becoming the mainstream material in modern structural engineering, especially in North American and European markets.

 

A572 High-Strength Low-Alloy Structural Plate has corresponding equivalent grades in different international standards, which is convenient for customers in different regions to select and use.

As a professionalA572 supplier, GNEE STEEL can provide products that meet various standard requirements.

 

The equivalent grades of common A572 grades are as follows:

Our Grade (ASTM A572)	Yield Strength (MPa)	European Standard (EN 10025-2)	Chinese Standard (GB/T 1591)	Japanese Standard (JIS G 3101)	German Standard (DIN 17100)
A572 Grade 42	290	S275JR	Q295B	SS400	St44-3
A572 Grade 50	345	S355JR	Q345B/Q355B	SS490B	St52-3
A572 Grade 55	380	S355J2	Q390B	SS540B	St52-3J2
A572 Grade 60	415	S420JR	Q420B	SS590B	St52-4
A572 Grade 65	450	S450J0	Q460B	SS630B	St52-5

 

 

To help customers better understand the positioning of A572 high-strength low-alloy structural plate, we compare it with other grades in the same standard and equivalent grades, highlighting its performance advantages and applicable scenarios:

 

Comparison with Other Grades Within ASTM A572 Standard

A572 Grade	Minimum Yield Strength (MPa)	Tensile Strength (MPa)	Elongation (%)	Core Advantages
Grade 42	290	414-517	20	Low cost, basic high strength, good weldability
Grade 50	345	448-586	18	Balanced strength, ductility, and cost-effectiveness, most versatile
Grade 55	380	483-621	17	Higher strength than Grade 50, good toughness
Grade 60	415	517-655	16	High strength, suitable for ultra-high load
Grade 65	450	552-690	15	Highest strength in A572 series, excellent fatigue resistance

 

Comparison with Equivalent Grades (S355JR, Q345B, A36)

Grade Comparison	Standard	Yield Strength (MPa)	Key Differences
A572 Grade 50 vs S355JR	ASTM A572 vs EN 10025-2	Both 345/355	S355JR is European standard, focuses on impact toughness grades; A572 Grade 50 is American standard, focuses on micro-alloying (Nb/V) for strength enhancement
A572 Grade 50 vs Q345B	ASTM A572 vs GB/T 1591	Both 345	Q345B is Chinese standard, slightly different in alloy element content; A572 Grade 50 has stricter micro-alloying control
A572 Grade 50 vs A36	ASTM A572 vs ASTM A36	345 vs 250	A36 is ordinary carbon steel, lower strength; A572 Grade 50 is HSLA steel, higher strength and better comprehensive performance

 

 

GNEE STEEL has sorted out the most common questions from customers about A572 high-strength low-alloy structural plate, providing professional and accurate answers to help you make better purchasing decisions:

 

What is the core difference between the five grades of A572? How to choose the right grade?

The core difference is the minimum yield strength (from 290 MPa for Grade 42 to 450 MPa for Grade 65), which determines their load-bearing capacity. Choose based on your project's load requirements: Grade 42 for low-load civilian buildings; Grade 50 for most bridges, buildings, and machinery (most versatile); Grade 55/60/65 for high-load or extreme scenarios (e.g., high-rise cores, offshore platforms).

 

What is the delivery condition of A572 structural plate? 

Common delivery conditions are hot rolled (AR) and normalized (N); Grade 55/60/65 are mainly delivered in normalized state. GNEE STEEL can provide customized heat treatment according to customer needs, such as adjusting tempering temperature to optimize toughness or strength, and adding additional flaw detection and Z-direction performance requirements.

 

What are the maximum thickness and width of A572 structural plate provided by GNEE STEEL?

The thickness range is 3-150mm (Grade 42), 3-100mm (Grade 50), 3-50mm (Grade 55), 3-32mm (Grade 60/65); width 1500-4200mm, length 3000-18000mm. We can also provide customized specifications according to project requirements, including small-order customization (minimum order quantity 1 ton) and urgent orders.

 

Do A572 plates require special welding processes?

They have excellent weldability, and ordinary arc welding or gas welding can be used. For thick plates (>40mm), low preheating (100-150°C) is recommended to avoid welding cracks. GNEE STEEL provides free welding technical guidance, including welding material selection, preheating temperature, and post-welding heat treatment parameters, referring to Appendix X3 of ASTM A6/A6M for weldability information.

 

What is A572 steel plate?

The ASTM A572 specification is the Standard Specification for High-Strength Low-Alloy Columbium-Vanadium Structural Steel for plates used in general construction and structural applications. ASTM A572 includes five grades with specified minimum yield strengths of 42, 50, 55, 60, and 65 ksi, respectively.

 

Is A572 the same as A36?

A36 steel has a minimum yield strength of 36 ksi, while A572-a high-strength, low-alloy (HSLA) steel-offers a minimum yield of 50 ksi, making it better suited for heavy-duty structural applications. A36 is easier to weld, cut, and machine due to its lower carbon content.

 

Is A572 grade 50 equivalent to S355?

ASTM has identified A572-50 as an acceptable substitution for S355. Both grades have similar chemical compositions and are high-strength, low-alloy structural steels.

 

What is the difference between 4140 and A572 grade 50 steel?

ASTM International A572 is a structural carbon steel used in building frames (I beams, channels), whereas AISI 4140 chromium molybdenum alloy steel is used for high-strength mechanical parts (shafts, gears, bolts).

 

What is the steel equivalent to ASTM A572?

Which steel grades equivalent to astm a572 grade 50 ? Xinsteel Industrial suggest you using steel grades EN 10025-2 S355JR,DIN 17100 St50-2,GB/T 1591 Q345B or Q355B. These steel materials are all low alloy high strength for structural buildings.

 

What type of steel is A572 grade 50?

The ASTM A572 specification is the Standard Specification for High-Strength Low-Alloy Columbium-Vanadium Structural Steel for used in general construction and structural applications.

 

 

As a leading A572 high-strength low-alloy structural plate supplier with years of experience in steel export, GNEE STEEL has won the trust of customers in more than 50 countries and regions with professional strength and high-quality service. Choosing us means choosing reliability, efficiency, and cost savings:

 

• Strict Quality Control: We have advanced production and testing equipment, strictly implementing ASTM A572/A572M-21 standard. Each batch of products undergoes chemical composition analysis, mechanical property testing, and flaw detection to ensure stable performance and qualified quality. We also provide third-party testing services if required.
• Complete Product Specifications: We stock a full range of A572 structural plates (all five grades, thickness 3-150mm, various widths and lengths), supporting small-order customization and urgent order supply, meeting the diverse needs of different projects.
• Professional Technical Support: Our team of senior engineers provides one-stop technical services, including product selection, welding guidance, heat treatment customization, and after-sales problem solving, helping you avoid risks and improve project efficiency.
• Competitive Price & Fast Delivery: As a direct manufacturer, we eliminate intermediate links, providing customers with competitive factory prices. We cooperate with well-known logistics companies to ensure fast and safe delivery to global destinations, with flexible transportation methods (sea, air, land) available.
• Rich Export Experience: We have rich experience in exporting A572 structural plates to Europe, Asia, Africa, and the Americas, familiar with the import policies, certification requirements, and customs clearance processes of various countries, ensuring smooth delivery of your goods.
• Perfect After-Sales Service: We provide 24-hour after-sales service. If there is any quality problem with the products, we will respond quickly and provide solutions (return, replacement, or compensation) to protect your legitimate rights and interests.

 

 

A572 High-Strength Low-Alloy Structural Plate is a high-performance, cost-effective HSLA structural steel that complies with ASTM A572/A572M-21 standard, with excellent strength, toughness, weldability, and formability. Its five grades (42, 50, 55, 60, 65) cover different strength requirements, making it the mainstream material for modern structural engineering, widely used in construction, machinery, transportation, energy, and other fields. A572 Grade 50, in particular, is recognized as the most versatile grade, balancing performance and cost, and is widely used in global export projects.

 

GNEE STEEL is committed to providing high-quality A572 high-strength low-alloy structural plates and professional one-stop services, from product selection to after-sales support, to help you reduce costs, improve efficiency, and ensure project safety. Whether you need standard specifications or customized solutions, we can meet your needs with our strength and experience. With A572 structural plate from GNEE STEEL, you can get reliable material support for your project and achieve win-win cooperation.

 

Get Your Customized A572 Structural Plate Quote Now!

 

Are you looking for high-quality, cost-effective A572 high-strength low-alloy structural plates for your project? Do you need professional technical guidance to choose the right grade and specifications? Contact GNEE STEEL now to get a free quote and detailed product sample!

 

📩 Send us an inquiry with your requirements (grade, thickness, width, length, quantity, and project scenario), and our professional team will reply to you within 2 hours, providing customized solutions and the most competitive price.

✅ High-quality products

✅ professional service

✅ on-time delivery

 

- GNEE STEEL is your trusted partner for A572 high-strength low-alloy structural plates!

 

Relying on many first-class equipment, such as CNC Shearing machine, Press Brake machine, Straightening machine, Roll Bending machine, Flat Bar Machine, Deburring machine etc, GNEE STEEL could provide various semi-productsand extensive forming services to customers.

 

GNEE STEEL  PROCESSING

1.CTL & SL SERVICE (141 SETS)

Currently, GNEE STEEL has imported manyadvanced CTL/SL equipment from Italy and Korea and could provide customized CTL/SL services from cold rolled stainless steel and carbon steel to hot rolled stainless steel and carbon steel as well as strips and ultra-wide sheet.

CTL FACILITIES
Max Length:16500mm

Max Width:2200mm

Max Thickness:25.4mm

Max Yield Strength:1500Mpa
SL FACILITIES

Max Width:2200mm

Max Thickness:18mm

Max slit Quantity:31

Max Yield Strength:1200Mpa

 

2.CUTTING SERVICE

GNEE STEEL imported lots of advanced cutting machines from Germany, Sweden, America and Japan, including plasmas cutting machine, water jet cutting machine, laser cutting machine, flame cutting machine and saw machine. In order to meet customers' diversified needs, GNEE STEEL also adopts nest working multi-cutting methods and intensive production to improve production capacity and save costs for the customers.

Laser Cutting Machine

Max Cutting Length:40,000mm

Max Width:4,600mm
Max Thickness:100mm

 

Flame Cutting Machine

Max Cutting Length:40,000mm

Max Width:8,000mm
Max Thickness:500mm

Plasmas Cutting Machine

Max Cutting Length:30,000mm

Max Width:5,000mm
Max Thickness:100mm

 

Water-jet Cutting

Max Cutting Length:12,000mm

Max Width:4,010mm
Max Thickness:250mm

3.FORMING SERVICE

Steel Plate Roll Bending
Maximum Rolling Thickness: up to 200mm
Maximum Width: 4200mm

   

Automatic Bending Machine-Press Brake
Max Bending Capability:3000Ton
Max Bending Length:15,000mm

Expert in Bending High-Strength & Wear-Resistant Steels

  

  

Punching Machine

Max Width:3,070mm
Max Thickness:8mm

Max Pressure:250t

BEVELING SERVICE

GNEE STEEL beveling platform has edge milling machine, edge planer, flame / plasma groove cutting machine, flame groove cutting robot, desktop chamfering machine, gantry planerand other advanced equipment to provide customers with parts prefabrication services,daily processing of V-type, Y-type, X-type and U-type grooves, and guarantee subsequent processes such as welding and assembly of products.

 

Milling：
Max Cutting Length:18,000mm

Max Width:4500mm
Max Thickness:120mm

 

  

Beveling:
Max Length:16,000mm

Max Thickness:80mm

MACHINING SERVICE

GNEE STEEL owns CNC Portal-type Boring and Milling machine,CNC Floor-type Boring and Milling machine, Vertical Precision 5-axis Milling Machine, Portal-type Planer, Vertical Lathe, Cylindical Grinding machine, Hydraulic Planer and CNC Lathe and could provide fine machining of large spare parts and structural parts for customers.

Gantry Type Boring & Milling Maching Center

Max Length:48000mm

Max Width:12500mm
Max Height:8000mm

Max Diameter:10500mm

Deep-hole Drilling Equipment
Max Driling Depth:1,100mm
Max Bore Diameter:φ80mm
Max Diametar:φ4,500mm

MMulti-hole Drilling Equipment

Max Length:13,000mm
Max Width:10,000mm
Max Bore Diameter:φ105mm
Max Drilling Depth:250mm

Floor Boring And Milling Machine
Max Length:24,000mm
Max Height:8,000mm
Turntable Dimensions:9x5m

Vertical Lathe

Max Height:6,000mm

Max Diametar:φ22,00mm

Automated Edge Milling Machine

The Automated Edge Milling Machine is a leading product in heavy-duty milling equipment. It is primarily used for weld groove preparation (beveling) on large-format plates made of stainless steel, carbon steel, and special steel grades. It can process plates with a maximum thickness of up to 90mm, a length of 16 meters, and a width of 4 meters.

 

It is equipped with dual milling units and a fully automatic milling cutter head changing system, enabling automated 4-edge beveling. Its standout feature is the profiling technology used when milling wavy plates and irregularly shaped products, which ensures absolute consistency of the groove after milling.

 

Utilizing specially designed milling cutter heads, it can execute highly difficult and complex groove profiles in a single pass.

 

Materials: Plain carbon steel, pressure vessel steel, wear-resistant steel, high-strength steel, stainless steel, nickel-based alloys, etc.
Width: 1200 - 4200 mm
Length: 5800 - 16000 mm
Thickness: 5 - 90 mm
Weight: Up to 35 tons

 

This edge milling machine is the world's premier automated bevel milling equipment. With its excellent structural design and advanced data algorithms, it achieves full automation from plate detection to the actual milling process, significantly improving processing efficiency while guaranteeing high precision.

 

• Processing Accuracy

Length accuracy: ±1mm when L < 10m; ±2mm when L > 10m;

Width accuracy: ±1mm;

Diagonal accuracy: ±2mm;

Root face accuracy (blunt edge): ±1mm for Y-grooves; +0.5mm for X-grooves.

• Processing Efficiency

The processing efficiency is more than 10 times that of conventional edge milling or edge planing equipment.

HEAT TREATMENT

Heat Treatment Furnace
Max Furnace Size:36x12x13.5m
Max Rated Temperature:1100℃
Max Loading Capacity:800t

Heat Treatment of Pressure Vessels
Heat Treatment of Mining Equipment
Heat Treatment of Tube Sheet
Heat Treatment of Pressure Vessel Head

 

 

GNEE STEEL is currently participating in the procurement phase of a 100,000m³ full containment ammonia storage tank project, supplying high-quality steel plates for critical tank components. Due to the corrosive nature of ammonia and the risk of Ammonia Stress Corrosion Cracking (SCC), the project requires strict metallurgical control of materials according to EN 10028-3 standards.

 

One of the most important technical requirements of this project is the strict limitation of the actual Yield Strength (Re) for all NL2 grade materials. To prevent SCC risks in ammonia storage environments, the actual yield strength must not exceed 390 MPa, regardless of the nominal values specified in the standard or plate thickness ranges. This requirement places higher demands on steelmaking process control, heat treatment stability, and material testing.

 

Raw high-strength steel plates ready for the 100,000 m³ full containment ammonia storage tank production

 

Project Materials and Technical Requirements

 

The project mainly uses P355NL2 and P275NL2 normalized pressure vessel steel plates, which are widely applied in low-temperature storage tanks due to their excellent toughness and weldability.

 

Key technical specifications include:

• Material grades: P355NL2 and P275NL2 (Normalized)
• Yield strength: Standard minimum / Maximum limited to 390 MPa
• Hardness: ≤ 225 HBW in base material
• Impact testing: Charpy-V notch test at -50°C, minimum 27J
• Certification: EN 10204 3.1 certificate, with optional 3.2 certification

 

These strict requirements ensure that the steel plates maintain stable mechanical properties and high resistance to ammonia-induced stress corrosion during long-term operation.

 

Precision rolling and forming of steel plates into curved sections for the 100,000 m³ ammonia storage tank.

 

Project Plate Quantities and Thickness Distribution

 

The total steel demand for this ammonia storage tank project is several thousand tons, mainly distributed across different tank sections:

 

P355NL2 – Inner & Outer Tank Shell Plates

• Lower shell courses: 50 mm thickness – approx. 2,000 tons
• Middle shell courses: 25 mm thickness – approx. 1,400 tons
• Upper shell courses: 10 mm thickness – approx. 500 tons

 

P275NL2 – Tank Bottom Plates

• Thickness: 10–15 mm – approx. 750 tons

 

P275NL2 – Suspended Roof Structure

• Thickness: 5–8 mm – approx. 180 tons

 

S275JR – Outer Roof (Ambient Structure)

• Thickness: 10 mm – approx. 450 tons

 

To improve tank fabrication efficiency and reduce circumferential welds, the project also requires wide steel plates to minimize welding joints, which helps reduce the potential risk of SCC in ammonia service conditions.

 

Formed steel segments wrapped and racked for protection, ready for 100,000 m³ ammonia storage tank assembly.

 

GNEE STEEL provides high-precision steel plate rolling and cylinder fabrication solutions for tank manufacturers worldwide. Send us your plate specifications or fabrication drawings for a fast quotation.

Request A Quote

 

TYPE	GRADE	SPECIFICATIONS
Carbon Steel / Low Alloy Coil	Q235A/B/C/D/Q355B(Q345B)/C/D/E/SS400/SAPH400-C/ASTMA283Grade C	0.7~2.0*1250/1500mm*C 2.3~19.5*1250/1500/1800/2000mm*C
Medium Heavy Plate	Q235B/Q355B(Q345B)/C/D/E	6.0-200x150mm-4000mmxL
Vessel Plate	Q245R/Q345R/HP295/SA516MGR485/SA516GR70/P355NL2/P275NL2/ S275JR//SPV490/ASTM A537 Class 1/Class 2	2.5-120x1500mm-3000mmxL
High Strength Steel	510L/610L/700L/750L/BS600MCK4/BS700MCK2/BS700MCK4/ BS960E/BWELDY700QL2/L4/BWELDY960QL4/HG60D/70D/785D/ Q460D/Q550D/690D/690E/TQ600MCD/TQ700MCD/S700MCD/ WYS600/700/STRENX700MCE/Q490E/Q490D	1.2-60x 1500mm-2500mmxL
Patterned Steel	HQ235A|B	1.2-60x 1500mm-2500mmxL
Wear-resistance Steel	NM360/400/450/500/NM300TP/400TP/450TP/ ABREX400/450/500/B-HARD450XKY/ CREUSABRO4800/8000/EH C400LE/450LE/500LE/ HADOX450/500	3.0-50x1250mm-3300mmxL
Cold Rolled Coil	DC01/RECC/REDT/SPCC/ST12	0.5-3.0x1250mm-1500mmxC
Galvanized Plate	DC51D+AZ/DC51D+Z/DX51D+Z/SGH340+Z275/Z275/Z120/S350GD+ZM275	0.45-3.0x1250mm-1500mmxC
Pickled Coil	DD11/SPHC	2.0-6.0x1500xC

Stainless Steel Material and Surface Specifications

TYPE	GRADE	THICKNESS	SURFACE
Austenitic	304/304H/304L/304J1	0.25-150mm	2B/BA/NO.4/8K/SB/HL/NO.1
Austenitic	321	0.4-80mm	2B/BA/NO.4/8K/SB/HL/NO.1
Austenitic	316/316L/317L/316Ti	0.3-80mm	2B/BA/NO.4/8K/SB/HL/NO.1
Austenitic	201(J1/J2/J5)	0.35-12mm	2B/NO.1/1D
Ferrite	430	0.4-3.0mm	2B/BA/NO.4/8K/SB/HL
Ultra Pure Ferrite	443	0.4-2.0mm	2B
Ultra Pure Ferrite	436L/439/444/441	0.5-3.0mm	2B/2D

Special Steel / Nickel Base Alloy

TYPE	GRADE	GRADE (ASTM)	GRADE (EN)	THICKNESS
Heat-resistant Steel	309S	S30908	1.4833	0.5-40mm
Heat-resistant Steel	310S	S31008	1.4845	0.5-40mm
Duplex Stainless Steel	2101	S32101	1.4162	1.5-50mm
Duplex Stainless Steel	2304	S32304	1.4362	3.0-50mm
Duplex Stainless Steel	2205	S32205/S31803	1.4462	0.5-60mm
Duplex Stainless Steel	2507	S32750	1.4410	1.0-60mm
Super Austenitic-Steel	904L	N08904	1.4539	0.6-50mm
Super Austenitic-Steel	254SMO	S31254	1.4547	0.5-50mm
Super Austenitic-Steel	1.4529	N08926	1.4529	0.5-50mm
Super Austenitic-Steel	AL-6XN	N08367	1.4478	0.5-50mm
Nickel Base Alloy	Alloy 31	N08031	1.4562	1.0-50mm
Nickel Base Alloy	800	N08800	1.4876	0.8-50mm
Nickel Base Alloy	800H	N08810	1.4958	0.8-50mm
Nickel Base Alloy	800HT	N08811	1.4959	0.8-50mm
Nickel Base Alloy	Alloy 28	N08028	1.4563	1.0-20mm
Nickel Base Alloy	Alloy 20	N08020	2.4660	1.0-20mm
Nickel Base Alloy	825	N08825	2.4858	0.8-40mm
Nickel Base Alloy	C276	N10276	2.4819	0.5-50mm
Nickel Base Alloy	C22	N06022	2.4602	1.0-50mm
Nickel Base Alloy	625	N06625	2.4856	0.8-20mm
Nickel Base Alloy	400	N04400	2.4360	1.0-20mm
Nickel Base Alloy	600	N06600	2.4816	1.0-50mm
Nickel Base Alloy	Pure Ni 201	N02201	2.4061	0.5-20mm
Titanium	TA1	Gr.1	Class 1	0.5-50mm
Titanium	TA2	Gr.2	Class 2	0.5-50mm

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