ZHANGJIAGANG HUA DONG ENERGY TECHNOLOGY CO.,LTD
Zhangjiagang Hua Dong Energy Technology Co., Ltd.
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Hot Rolled Alloy Steel Plate Grade Ship Steel Plate
Firstly we suggest steel grade equivalent S355J2+N is ship steel plate ASTM A131 GR.DH36 (minimum yield strength 355 MPa, Tensile 490 to 620 Mpa, heat treatment under normalized or TMCP, charpy V-notch impacting test @ -20 ℃).Then ASTM A131 Gr.EH36 (minimum yield strength 355 MPa, Tensile 490 to 620 Mpa, heat treatment under normalized or TMCP, charpy V-notch impacting test @ -40 ℃) is also ok and even better than S355J2+N.
The same techincals as A131 GR.DH36 and EH36,ABS Grade DH36 and ABS Grade EH36 are both ok for replacing of S355J2+N.
Second we can suggest you choose alloy structural steel ASTM A572Gr50 (minimum yield strength 345 MPa, Tensile above 450 MPa).Of course adding techincals Normalized heat treatment and Charpy V-notch impacting test -20 centigrade for A572Gr50 when ordered.
Besides,DIN 17100 St52-3 N (minimum yield strength 345 MPa, Tensile above 490-630 MPa) is also one low alloy steel. GB/T1591 Q345D (minimum yield strength 345 MPa,Tensile above 470-630 MPa,D meas done Charpy V-notch impacting at minus 20 centigrade)
The table below show the mechanical properties of grade S355J2
| Minimum yield strength Reh MPa | Tensile strength Rm MPa | Minimum elongation - A Lo = 5,65 * √So (%) | Notch impact test | |||||||||||
| Steel grade | Nominal thickness mm | Nominal thickness mm | Nominal thickness mm | Temperature | Min. absorbed energy | |||||||||
| ≤16 | >16 ≤40 | >40 ≤63 | >63 ≤80 | >80 ≤100 | >100 ≤125 | >3 ≤100 | >100 ≤125 | >3 ≤40 | >40 ≤63 | >63 ≤100 | >100 ≤125 | °C | J | |
| | | | | | | | | | | | | | ||
| S355J2 | 355 | 345 | 335 | 325 | 315 | 295 | 470-630 | 450-600 | 22 | 21 | 20 | 18 | -20 | 27 |
The table below show the chemical composition of grade S355J2
| Ladle analysis | |||||||||||||
| Steel grade | C max. % | Mn max. % | Si max. % | P max. % | S max. % | N max. % | Cu max. % | Other max. % | CEV max. % | ||||
| Nominal thickness mm | Nominal thickness mm | ||||||||||||
| ≤16 | >16 ≤40 | >40 | | | | | | | | ≤30 | >30 ≤40 | >40 ≤125 | |
| | | | | | | | | | | | | | |
| S355J2 | 0,20 | 0,20 | 0,22 | 1,60 | 0,55 | 0,030 | 0,030 | - | 0,55 | - | 0,45 | 0,47 | 0,47 |
S355J2 Steel Grade Equivalent Table
| USA | Germany DIN,WNr | Japan JIS | European old EN | China GB | Sweden SS |
| | | | | | |
| A656 | St52-3N | SS490YA | Fe510D2 S355J2G4 | Q345D | 2134-01 |