Steel Standart

Carbon steel grades

3 carbon steel grades from 2 designation systems, each with a full data sheet. Sorted by system; the yield and tensile values are the first line of each grade's mechanical table.

AISI / SAE

Carbon steel — AISI / SAE
GradeNo.TypeC %Yield MPaTensile MPaEquivalents
1018G10180Low-carbon steel, cold-finished bar (case-hardenable)0.15 – 0.2≈ 370≈ 440C15 / C15E, S235JRC / C22, S15C / S17C / S20C
1045G10450Medium-carbon steel, hardenable0.43 – 0.5≈ 310≈ 565C45, S45C, 45

EN (European)

Carbon steel — EN (European)
GradeNo.TypeC %Yield MPaTensile MPaEquivalents
C451.0503Medium-carbon steel for quenching and tempering0.42 – 0.5340≥ 6201045, S45C, 45

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