The steel grade SS400 is mild steel in JIS standard. It has a lot of equivalent materials, such as A283C, FE360B, E24-2, Q235B, EN S235JR, DIN ST37-2, etc. Those steel grade SS400 equivalent materials have little difference in chemical composition and mechanical properties, below are some of the grades comparison for your reference:
The steel grade SS400 equivalent materials chemical composition: (%)
Grade | C (t≤16mm) | Si | Mn | P | S | Cu | N |
SS400 | – | – | – | 0.050 max | 0.050 max | – | – |
Q235B | 0.20 max | 0.35 max | 1.40 max | 0.045 max | 0.045 max | – | – |
A36 | 0.26 max | 0.40 max | – | 0.040 max | 0.050 max | 0.20 min | – |
A283C | 0.24 max | 0.04 max | 0.09 max | 0.035 max | 0.040 max | 0.20 min | – |
S235JR | 0.19 max | – | 1.5 max | 0.045 max | 0.045 max | 0.60 max | 0.014 max |
ST37-2 | 0.21 max | – | – | 0.065 max | 0.065 max | – | 0.010 max |
The steel grade SS400 equivalent materials mechanical properties: (%)
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 | ||||
SS400 | 245 | 400-500 | |||
Q235B | 235 | 370-500 | 26 | 20 | 27 |
A36 | 250 | 400-550 | 23 | – | – |
A283C | 205 | 380-515 | 25 | – | – |
S235JR | 235 | 360-510 | 26 | 20 | 27 |
ST37-2 | 235 | 360-510 | 26 | 20 | 27 |
The steel grade SS400 equivalent materials are always supplied in hot rolled condition. They are popular for general structural purposes, and mainly for use in riveted, bolted, or welded construction of bridges and buildings.