The Chemical Composition of SM400B Steels:
JIS G3106 defines the percentage of chemical composition of SM400B steels as under:
Maximum Carbon (C) percentage is 0.20.
Maximum Manganese (Mn) percentage is 1.5 and starts from 0.6 percent.
Maximum percentage of Phosphorous (P) is 0.035.
Maximum percentage of Sulphur (S) is 0.035.
Maximum percentage of Silicon (Si) is 0.35.
Remaining is iron (Fe) percentage and with few negligible impurities.
Mechanical Properties of SM400B Steels:
The tensile strength of the SM400B Steels is expressed in Newton per millimeters and it must be at-least 400 N/mm2 (MPa) and maximum can be 510 N/mm2 (MPa). The yield strength is minimum 245. The elongation property of SM400B Steel varies with the ranges of thickness. The minimum percentage range for elongation is 18.
Equivalent steel grade ofSM400B
Europe | Belgium | Germany | France | Italy | Sweden | India | USA | U.K |
S235 J0 | AE235B | St37-3U | E 24-3 | Fe 360 C | SS 13,12,00 | Fe 410-S | A284 gr, D | 40C |
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