Grade A131 Grade DH36
Corresponding Standard ASTM A131(A131M)-2019
Structural Steel for Ships
Classification Alloy Steel
A131 Grade DH36 Chemical Element Composition Content (%)
Component C Si Mn P S Cr Ni Cu Mo Ti V Nb Al ②③ Ca
Minimum Value - 0.1 0.9 - - - - - - - 0.05 0.02 0.015 -
Maximum Value 0.18 0.5 1.6 0.035 0.035 0.2 0.4 0.35 0.08 0.02 0.1 0.05 - 0.005
A131 Grade DH36 Mechanical Properties
Thickness
t
mm
Tensile Strength
σb
Mpa
Yield Point
σs
Mpa
Elongation or Extension Rate
δ
%
t≤5 490~620 ≥355 L0=200mm
≥13
5<t≤10 490~620 ≥355 ≥15
10<t≤15 490~620 ≥355 ≥16
15<t≤20 490~620 ≥355 ≥17
20<t≤25 490~620 ≥355 ≥18
25<t≤30 490~620 ≥355 ≥19
30<t≤40 490~620 ≥355 ≥20
40<t≤50 490~620 ≥355 ≥21
t≤50 490~620 ≥355 L0=50mm
≥20

Note: The data is for reference only! If you have any questions, please fill out "I want to correct it"!