16MnCr5 equivalent grades: ASTM, EN, JIS, GB, DIN
16MnCr5 is alloy case-hardening steel specified in EN 10084. The cross-reference runs across 6 standard systems and grades every candidate, so the reason a substitution is safe is on the same row as the name. The full 16MnCr5 data sheet carries the composition and mechanical tables.
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5115, 590M17, 20MnCr5 and 4 more sit one step away, differ in a strength minimum or in the quality class rather than in the metallurgy. 8620, C15 serve the same purpose without being the same steel, so a substitution there needs the design re-checked rather than the certificate. Across systems that is 2 in AISI / SAE, 1 in BS (superseded British), 3 in EN (European), 1 in GB/T (China), 1 in GOST (Russia/CIS), 1 in JIS (Japan).
Cross-reference table
| Grade | System | Match | Why / differences |
|---|---|---|---|
| 5115 | AISI / SAE | Near | SAE 5115 (UNS G51150): C 0.13–0.18, Mn 0.70–0.90, Cr 0.70–0.90 — lower Mn and Cr, somewhat lower hardenability. SAE 5120 is closer on hardenability. |
| 590M17 | BS (superseded British) | Near | BS 970 590M17: C 0.14–0.20, Mn 1.00–1.30, Cr 0.60–1.00 (Cr window slightly lower). |
| 20MnCr5 | EN (European) | Near | 1.7147: C 0.17–0.22, same Mn/Cr; higher core strength (900–1200 MPa) for larger gears. |
| 16MnCrS5 | EN (European) | Near | Free-machining variant with 0.020–0.040 % S; same case/core response. |
| 16CrMn / 20CrMn | GB/T (China) | Near | GB/T 3077 20CrMn: C 0.17–0.23, Mn 0.90–1.20, Cr 0.90–1.20; 16MnCr5 sits at the low-carbon end. |
| 18KhG | GOST (Russia/CIS) | Near | GOST 4543 18KhG: C 0.15–0.21, Mn 0.90–1.20, Cr 0.90–1.20. |
| SCr415 / SCr420 | JIS (Japan) | Near | JIS G4053 SCr415: C 0.13–0.18, Mn 0.60–0.90, Cr 0.90–1.20; Mn lower than 16MnCr5. |
| 8620 | AISI / SAE | Functional | Ni-Cr-Mo case-hardening steel, better toughness and hardenability; the US default for the same parts. |
| C15 | EN (European) | Functional | Unalloyed case-hardening steel for small, lightly loaded parts. |
Identical, near and functional are defined once on the grade index; the reason column below says which limit differs in each case.
16MnCr5 in AISI / SAE
- 5115 — Near SAE 5115 (UNS G51150): C 0.13–0.18, Mn 0.70–0.90, Cr 0.70–0.90 — lower Mn and Cr, somewhat lower hardenability. SAE 5120 is closer on hardenability.
- 8620 — Functional Ni-Cr-Mo case-hardening steel, better toughness and hardenability; the US default for the same parts.
16MnCr5 in BS (superseded British)
- 590M17 — Near BS 970 590M17: C 0.14–0.20, Mn 1.00–1.30, Cr 0.60–1.00 (Cr window slightly lower).
16MnCr5 in EN (European)
- 20MnCr5 — Near 1.7147: C 0.17–0.22, same Mn/Cr; higher core strength (900–1200 MPa) for larger gears.
- 16MnCrS5 — Near Free-machining variant with 0.020–0.040 % S; same case/core response.
- C15 — Functional Unalloyed case-hardening steel for small, lightly loaded parts.
16MnCr5 in GB/T (China)
- 16CrMn / 20CrMn — Near GB/T 3077 20CrMn: C 0.17–0.23, Mn 0.90–1.20, Cr 0.90–1.20; 16MnCr5 sits at the low-carbon end.
16MnCr5 in GOST (Russia/CIS)
- 18KhG — Near GOST 4543 18KhG: C 0.15–0.21, Mn 0.90–1.20, Cr 0.90–1.20.
16MnCr5 in JIS (Japan)
- SCr415 / SCr420 — Near JIS G4053 SCr415: C 0.13–0.18, Mn 0.60–0.90, Cr 0.90–1.20; Mn lower than 16MnCr5.
Superseded names for 16MnCr5
- 16MnCr5 (1.7131) — DIN 17210 (withdrawn): Name and number unchanged; standard replaced by EN 10084.
- 590M17 / 527M17 — BS 970
- 16MC5 — NF A 35-551
- 16MnCr5 — UNI 7846
Key data for 16MnCr5
Full composition, mechanical properties by thickness, heat treatment and applications for 16MnCr5 →
Verified against EN 10084:2008. Last checked: September 2026.