50CrMn
50CrMn is a grade designated under GB. Its recorded composition includes C 0.46–0.54%, Si 0.17–0.37%, Cr 0.9–1.2%, Mn 0.7–1% and Cu ≤ 0.2%. No cross-standard equivalents are recorded for this grade yet. Recorded mechanical properties include Rm ≥ 1274 N/mm² and Re ≥ 1078 N/mm².
- Designations 1
Chemical composition
7 elements on file · weight %What this alloy is
Logarithmic scale, 0.01 % to 100 % — every value here compares directly, decade by decade.
| Element | % by weight |
|---|---|
0.46–0.54 | |
0.17–0.37 | |
0.7–1 | |
≤ 0.04 | |
≤ 0.04 | |
0.9–1.2 | |
≤ 0.2 |
The scale is logarithmic, not the element’s raw share of the alloy — the only honest way to fit 0.01 % and 100 % in one picture, and it means every value here can be compared with every other.
| Element | As publishedsource text, verbatim | Min% by weight | Max% by weight | Bound |
|---|---|---|---|---|
| C | 0.46-0.54 | 0.460 | 0.540 | Range |
| Si | 0.17-0.37 | 0.170 | 0.370 | Range |
| P | ≤0.04 | — | 0.040 | Max |
| S | ≤0.04 | — | 0.040 | Max |
| Cr | 0.9-1.2 | 0.900 | 1.200 | Range |
| Mn | 0.7-1 | 0.700 | 1.000 | Range |
| Cu | ≤0.2 | — | 0.200 | Max |
The published column is the source string byte-for-byte, decimal comma and all; Min and Max are the parsed bounds. Elements not listed have no value on file — they are omitted, never inferred.
Predicted transformation temperatures
Not enough recorded composition to predict a transformation temperature for this grade — missing: Ni, Mo.
Physical & mechanical properties
An absent property means we hold no value for it — it is left out rather than estimated, interpolated from a neighbouring grade, or filled from a handbook. It does not mean the property is undefined for the material.
Properties by condition
0 conditions · 0 values2 further values are held for this grade under a condition the source did not name — a bound with no quantity attached. They are withheld rather than shown against a guessed condition.
Heat treatment
GB 1222-1964
- Quenching840 °CCooling Oil
- Tempering490 °C
Source: www.caishuku.com
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