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14NiCr14

1.5752
alloy_steelcase_hardening
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High-Ni case hardening steel — Ni 3.0-3.5%, Cr 0.6-0.9%, no Mo. Ni gives excellent core toughness at low temperature — used for case-hardened parts operating in cold environments. THE classic aerospace/defense case-hardening steel (BS S130/S131). Used for aircraft gears, military vehicle transmission gears, and cryogenic case-hardened components.

International equivalents

FlagStandardCountryGradeNumberMatch
🇺🇸AISIUSAAISI 3310 (approximate)—REF
🇪🇺ENEurope14NiCr14 / 1.57521.5752100%

Sources: ASTM A29, EN 10084

Chemical composition comparison (wt%)

Side-by-side: 14NiCr14 (EN 10084) vs 14NiCr14 / 1.5752 (EN) (EN 10084)

Element14NiCr14 (EN 10084)14NiCr14 / 1.5752 (EN)Overlap
C—0.1–0.17%—
Si—0–0.4%—

Mechanical properties

Compatibility verdict

14NiCr14 and 14NiCr14 / 1.5752: 100% composition match

Related materials

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