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SS400 steel

JIS SS400 is a type of steel sheet under EN standard which is used to build ship, bridge, belongs to high strength sheet. S235JR is equivalent to DIN: St37-2, EN10025(93): S235JR,ASTM:A283C and UNI:FE360B
JIS SS400 is alloy steel under the EN standard which is equal to DIN17100:St52-3, DIN EN 10025-2:S355JR, BS: 50B and UNI7070:Fe510B

SS400 JIS3101 Comparison of steel grades
EN10025:1990 FE 360 B
DIN17100 ST37-2
NFA 35-501 E24-2
EN 10025-2 S235JR
UNI7070 FE 360 B

SS400 steel plate Chemical analysis -% by mass* 

Chemical elements C≤ 16mm max C>16mm max Si 
Mn max P
%,by mass 0.17 0.20 -- 1.40 0.045 0.045

SS400 steel plate Mechanical properties 

thickness Yield StrengthReH[N/mm2] transv.min. TensileStrengthRm[N/mm2]transv. Fracture Elongation[%]transv. min. Notch Impact Energy1)Ch Vcomplete samplelongitud. min [J]
t≤ 16mm t >16mm 235 225     20 degree 27J
   t < 3mm    t ≥ 3mm   360-510 340-470  
Up to 1.5mm 1.51-2.00mm 2.01-2.50mm 2.51-2.99mm  ≥ 3mm     16 17 18 19 24