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25CrMoS4

1.7213
alloy_steelquenched_tempered
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Free-cutting variant of 25CrMo4 (1.7218) — sulfur addition (0.020-0.040%) for improved chip formation on CNC automatics. Same mechanical properties after Q&T. THE high-volume CrMo steel for CNC-machined automotive parts where cycle time matters. Used for transmission shafts, steering components, bolts, and any 25CrMo4 application produced on automatic lathes.

International equivalents

FlagStandardCountryGradeNumberMatch
🇺🇸AISIUSAAISI 4130 (approx, no S)—REF
🇪🇺ENEurope25CrMoS4 / 1.72131.7213100%

Sources: ASTM A29, EN 10083-3

Chemical composition comparison (wt%)

Side-by-side: 25CrMoS4 (EN 10083-3) vs 25CrMoS4 / 1.7213 (EN) (EN 10083-3)

Element25CrMoS4 (EN 10083-3)25CrMoS4 / 1.7213 (EN)Overlap
C—0.22–0.29%—
Si—0–0.4%—

Mechanical properties

Compatibility verdict

25CrMoS4 and 25CrMoS4 / 1.7213: 100% composition match

Related materials

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34CrNiMo6

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🇪🇺 34CrNiMo6🇨🇳 34CrNiMo6🇬🇧 817M40 / EN24🇯🇵 SNCM439

16MnCr5

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🇪🇺 16MnCr5🇫🇷 16MC5🇨🇳 16MnCr5🇯🇵 SCr415
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