45Mn
45Mn is a grade designated under GB. Its recorded composition includes C 0.42–0.5%, Si 0.17–0.37%, Cr ≤ 0.25%, Mn 0.7–1% and Ni ≤ 0.3%. No cross-standard equivalents are recorded for this grade yet. Recorded mechanical properties include Rm ≥ 620 N/mm² and A ≥ 15%.
- Designations 1
Chemical composition
8 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 |
|---|---|
0.42–0.5 | |
0.17–0.37 | |
0.7–1 | |
≤ 0.035 | |
≤ 0.03 | |
≤ 0.25 | |
≤ 0.3 | |
≤ 0.25 |
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 | 0.42-0.5 | 0.420 | 0.500 | Range |
| Si | 0.17-0.37 | 0.170 | 0.370 | Range |
| P | ≤0.035 | — | 0.035 | Max |
| S | ≤0.03 | — | 0.030 | Max |
| Cr | ≤0.25 | — | 0.250 | Max |
| Mn | 0.7-1 | 0.700 | 1.000 | Range |
| Ni | ≤0.3 | — | 0.300 | Max |
| Cu | ≤0.25 | — | 0.250 | 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: 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.
Heat treatment
Supply condition
- Normalizing and Quenching and TemperingTest specimen sized=25
Conditions the standard permits on delivery. No temperature or medium is published for these, so no order and no alternation is implied.
Source: www.caishuku.com
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