ASTM A131 ABS AH36 DH36 EH36 Marine Steel Plate

A structural grade of steel plate utilized almost exclusively in the shipbuilding and offshore industries. This grade is defined as Higher Strength with specified minimum yield of 51 KSI. These products are offered in various conditions; AH36 in the control-rolled condition, DH36 in both the control-rolled and normalized condition, EH36 in the normalized condition. These grades are also certified by the American Bureau of Shipping (ABS).

Higher strength- Grade AH, DH ,EH and FH witha specified minimum yield point of 46 ksi(315Mpa),51ksi(350Mpa) or 57 ksi(390Mpa)
Shapes and bars are normally available as Grade A,AH32,and AH36.Other grades may be furnished by agreement between purchaser and the manufacturer.

Shipbuilding is central to America’s identity and American ingenuity shines in its submarines, yachts, cruise ships, and aircraft carriers. Great ships start with high-quality marine grade steel plate and Gnee is proud to supply the American shipbuilding industry with marine and offshore steel that’s corrosion-resistant and tough, demonstrating decreased brittleness, even in cold temperatures, and increased strength to resist force trauma and vibration. All of our marine grade plate meets the standards set by ABS (American Bureau of Shipbuilding), ASTM, and API (American Petroleum Institute). We’re a trusted supplier of marine & offshore steel plate across world and service shipbuilders

Specifications range
Thickness:2.5-120mm
Width:1000-3000mm
Length: As request

Chemical Requirement for Higher-Strength Structural Steel

Element	Chemical composition(heat analysis% max
	AH36 /DH36/EH36
C	0.18
Mn	0.90-1.60
Si	0.10-0.50
P	0.035
S	0.035
Al min	0.015
Cb	0.02-0.05
V	0.05-0.10
Ti	0.02
Cu	0.35
Cr	0.20
Ni	0.40
Mo	0.08
N	-

Tensile Requirement for Ordinary-Strength and Higher-Strength Structural Steel

Grade	Tensile Strength ksi(Mpa)	Yield Strength min ksi(Mpa)	Elongation in 8 in (200mm) %	Elongation in 2 in (50mm) min %
Higher strength
AH36 DH36 EH36 FH36	71-90(190-620)	51（355（	19	22