16MnCr5
Data verified16MnCr5 is the most common European case-hardening steel for small-to-medium gears — the EN counterpart of the 8620 concept with Mn-Cr instead of Ni-Mo.
Chemical composition
| Element | Content (%) |
|---|---|
| C | 0.14–0.19 |
| Si | ≤0.40 |
| Mn | 1.00–1.30 |
| Cr | 0.80–1.10 |
Weight percent, per the governing standard ranges. Actual values per heat are on the mill certificate.
Properties
| Case hardness (carburized) | 58–64 HRC |
| Core tensile | 650–950 MPa |
| Density | 7.85 g/cm³ |
Heat treatment
Carburize 880–930 °C; quench 810–840 °C oil; temper 150–200 °C.
Equivalent grades
| Standard | Designation |
|---|---|
| din | 1.7131 (16MnCr5) |
| aisi | 5115 (near) |
| gb | 16CrMnH (near) |
Compare side by side: 16MnCr5 vs 20MnCr5 · 16MnCr5 vs 8620
Equivalents overlap in chemistry and use but are not always identical — see our equivalents guide before substituting in certified designs.
Applications & Processing
Applications: Gears, pinions, worms, cam parts, small transmission components.
Processing: Excellent machinability soft; carburize and finish-grind.
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Ask for a quotationVisit NasteelSource: EN 10084 published ranges · Last updated 2026-11-03. Data is indicative — verify critical values against the governing standard and mill certificate before use.