Home > News Center > Product News

The equivalent material of ASTM A131 AH36 steel

The equivalent material of ASTM A131 AH36 steel

From the comparion, we find that though ASTM A131 AH36 steel and so called ASTM A131 AH36 steel equivalent materials have much in common. But they are not totally the same. Some even have different impact test requirements. As we know the ASTM A131 AH36 steel is shipbuilding steel, the ship needs to understand waves and corrossion of sea water. It is not safe to use the so called ASTM A131 AH36 steel equivalent to build ships. They can only be used in some not so important parts on the ships.Some regard Q345B, A572 Gr.50, S355JR, ST52-3 etc. high strength low alloy steel as ASTM A131 AH36 steel equivalent. Is that reliable? Let us make a comparion in those steel materials.

ASTM A131 AH36 steel and so called ASTM A131 AH36 steel equivalent chemical composition

Grade Chemical composition %
C  (t≤16mm) Si Mn P S Nb V Ti Cr Ni Cu N Mo Other
Q345B 0.20 max 0.50 max 1.70 max 0.035 max 0.035 max 0.07 max 0.15 max 0.20 max 0.30 max 0.50 max 0.30 max 0.012 max 0.1 max -
A572 Gr.50 0.23 max 0.40 max 1.35 max 0.04 max 0.05 max 0.005
-0.05
- - - - - - - -
- 0.01-0.15 - - - - - - -
0.005
-0.05
0.01-0.15 - - - - - - Nb+V 0.02-0.15
- 0.06 max 0.006
-0.04
- - - 0.003
-0.015
- -
S355JR 0.27 max 0.6 1.70 max 0.045 max 0.045 max - - - - - 0.60 max 0.014 max - -
ST52-3 0.22 max     0.50 max 0.50 max - - - - - - - - -
A131 AH36 ≤0.18 ≤0.50 0.90-1.60 ≤0.030 ≤0.030 0.02
-0.05
0.05-0.10 ≤0.02 ≤0.20 ≤0.40 ≤0.30   ≤0.08 Als ≥0.015

ASTM A131 AH36 steel and so called ASTM A131 AH36 steel equivalent mechanical property

Grade Yield strength ReH/(N/mm2) (t≤16mm) min Tensile strength Rm/(N/mm2) (3mm≤t≤16mm) Elongation A/%(3mm≤t≤40mm) min Charpy V test
Temperature/℃ Impact energy (Longitudinal)/J min
Q345B 345 470-630 20 20 34
A572 Gr.50 345 450 18 - -
S355JR 355 470-630 22 20 27
ST52-3 355 490-630 22 0 27
A131 AH36 ≥355 490-620 ≥21 0 34

 

Pre: The introduce of ABS AH36 steel plate's features

Next: ASTM A516 steel equivalent

Contact Us

Shanghai Katalor Enterprises Co., Ltd

0086-18317160019
[email protected]
No.230,1st Floor,Building No.1,No.221 Of Huashen Road,Free Trade Area Of Pudong New District,Shanghai China
Live Chat