FH36 Shipbuilding Steel Plate

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FH36 plate is a high-strength shipbuilding steel plate. According to the requirements of GB/T712-2011, the impact temperature of FH36 ship plate is -60℃. BBN steel can produce marine steel products of different classification societies specifications according to user needs, China CCS, American ABS, German GL, French BV, Norway DNV, Japan NK, British LR, Italian RINA, South Korea KR (Norway DNV and Germany merged into: VL).

 

Grade AH36 steel is the impact force subjected to 0 ° C
Grade DH36 steel impact force at -20 ° C
Grade EH36 steel impact force at -40 ° C
Grade FH36 steel impact force at -60 ° C

 

FH36 steel plate production specification range:
The range of FH36 marine steel that can be produced is 5-80mm x 1500 -3900mm x 3000-12000mm. Most manufacturers can only produce ship plates that are less than 30mm thick and 2,200mm wide. GNEE steel can produce ship plates above 220mm thickness and can also carry out classification society certification.

 

ASTM A131 FH36 steel plate, FH36 steel is a kind of steel for shipbuilding and platform.Shipbuilding steel plate FH36 is the high tensile strength steel.As a professional shipbuilding steel plate exporter, GNEE international can supply steel plate FH36. ASTM A 131 FH36 shipbuilding steel plates can be used in the manufacture of the ship's hull structure whose weight is below 10000 tons.

 

ABS FH36 Ship Steel Delivery Conditions:
ABS FH36 Delivery Condition: AR(As hot rolled only), TMCP, Q+T(Quenching+Tempering), N(Normalizing),CR( Control rolled only)

ABS FH36 Steel Plate Additional Service:
Hot rolled(HR), control rolled(CR) Thermo Mechanical Control Process(TMCP), Normalized , Q&T, impact test, Z15,Z25,Z35.

ABS FH36 Shipbuilding Steel Chemical Composition:

Grade	C %	Si %	Mn %	P %	S %	V %	AL %	Cr %
ABS Grade FH36	0.160	0.1-0.5	0.90-1.6	0.025	0.025	0.05-0.10	0.015	0.200
	Cu %	Mo %	Nb %	Ni %	Ti %	N%
	0.350	0.080	0.02-0.05	0.400	0.020	0.009

ABS FH36 Grade Ship Steel Mechanical Properties:

Grade	Thickness(mm)	MinYield(Mpa)	Tensile(Mpa)	Elongation (%)	Min Impact Energy
ABS Grade FH36	8mm-50mm	Min 355Mpa	490-620Mpa	21%	-60	34J
	51mm-70mm	Min 355Mpa	490-620Mpa	21%	-60	41J
	71mm-100mm	Min 355Mpa	490-620Mpa	21%	-60	50J
The min impact energy is longitudinal energy

 

FH36,LR/FH36|LR Grade FH36,LR FH36 STEEL PLATE

GNEE steel is specialized in supplying LR high strength steel plate in LR Grade FH36. For more information of Grade FH36 steel plate, please check them in following:

 

LR/FH36 high Strength Chemical Composition
Grade	The Element Max (%)
	C	Si	Mn	P	S	Al	N
LR/FH36	0.16	0.05	0.9-1.6	0.025	0.025	0.015
	Nb	V	Ti	Cu	Cr	Ni	Mo
	0.02-0.05	0.03-0.10	0.02	0.35	0.20	0.80	0.08

Crack Sensitivity: Pcm = (C+Si/30+Mn/20+Cu/20+Ni/60+Cr/20+Mo/15+V/10+5B)%
Carbon Equivalent: Ceq = 【C+Mn/6+(Cr+Mo+V)/5+(Ni+Cu)/15】%

 

LR/FH36 high strength property
Grade		Mechanical Property			Charpy V Impact Test
	Thickness	Yield	Tensile	Elongation	Degree	Energy 1	Energy 2
LR/FH36	mm	Min Mpa	Mpa	Min %	-60	J	J
	t≤50	355	490-630	21%		24	34
	50＜t≤70	355	490-630	21%		27	41
	70＜t≤100	355	490-630	21%		34	50
Note: Energy 1 is transverse impact test, Energy 2 is longitudinal

 

Equivalent steel grade of LR/FH36
DNV	GL	ABS	BV	CCS	NK	KR	RINA
NV F36	GL-F36	AB/FH36	BV/FH36	CCS/F36	K F36	R F36	RI/F36

 

Core Properties of FH36 Steel Plate

High Strength:

Yield Strength: ≥355 MPa.

Tensile Strength: 490-630 MPa, with some reaching 550 MPa or higher (e.g., 590-715 MPa, depending on delivery conditions or testing methods).

 

Application Advantages: High strength helps reduce the weight of ship structures, improving cargo capacity and navigation efficiency.

High Toughness:

Low-Temperature Toughness: At -60°C, the impact energy absorbed is ≥300 J (some data show an average absorbed energy of 34 J or higher, depending on testing standards or plate thickness), preventing brittle fracture and making it suitable for cold waters.

Fatigue Resistance: Long-term service under alternating loads (such as wave impact) reduces the risk of fatigue cracking.

Weldability:

Low Carbon Equivalent: Cracks are less likely to form during welding, and the mechanical properties of the weld metal are similar to those of the parent material, ensuring the quality and strength of the welded joint.

Processing Ease: Supports various processing methods such as flame cutting, laser cutting, and plasma cutting to meet the needs of complex structures.

Corrosion Resistance:

Alloying Elements: The addition of alloying elements such as copper (Cu), nickel (Ni), chromium (Cr), and molybdenum (Mo) forms a protective layer on the metal substrate surface, improving seawater corrosion resistance.

Surface Treatment: Sandblasting and painting can further extend the service life.

 

III. Applications of FH36 Steel Plate

Shipbuilding:

• Large Ships: Main structural components such as tankers, bulk carriers, and container ships, designed to withstand complex marine environments and long-term use.
• High-Performance Ships: Luxury yachts and high-speed passenger ships, requiring high strength and lightweight design.
• Internal Hull Parts: Bearings, special-shaped parts cutting, and large tailor-welded flanges require high strength and excellent weldability.

 

Marine Engineering:

• Offshore Platforms: Construction of major structural components such as pile legs, jackets, and decks on offshore oil drilling platforms and subsea oil and gas production platforms, which withstand multiple loads such as wind, waves, currents, and tides.
• Subsea Pipelines: Manufacturing submarine oil and gas pipelines to ensure safe operation in environments with high pressure, fluctuating seabed topography, and corrosive seawater.
• Wind Turbine Foundations: Serving as the foundation structural material for wind turbines, they withstand intense wind loads and ocean wave impact.

 

Petrochemical Industry:

• Pressure Vessels: Manufacturing various pressure vessels, storage tanks, pipelines, and other equipment to withstand harsh environments such as high temperatures, high pressures, and corrosion.

 

Other Industries:

Port Machinery: Manufacturing key structural components for large machinery such as port cranes and loading and unloading equipment to withstand the intense stresses of frequent lifting and loading and unloading operations.

Bridges and Buildings: Used in high-rise buildings, steel structure factories, and other structures, providing stable support and load-bearing capacity.

 

 

 

 

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