STHA24
STHA24 is a grade designated under KS. Its recorded composition includes C ≤ 0.15%, Si ≤ 0.5%, Cr 1.9–2.6%, Mn 0.3–0.6% and Mo 0.87–1.13%. No cross-standard equivalents are recorded for this grade yet. Recorded mechanical properties include Rm 420 N/mm², Re 210 N/mm², A 22–30% and HRB 85.
- 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 |
|---|---|
≤ 0.15 | |
≤ 0.5 | |
0.3–0.6 | |
≤ 0.03 | |
≤ 0.03 | |
1.9–2.6 | |
0.87–1.13 |
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 | max 0.15 | — | 0.150 | Max |
| Si | max 0.5 | — | 0.500 | Max |
| P | max 0.03 | — | 0.030 | Max |
| S | max 0.03 | — | 0.030 | Max |
| Cr | 1.9 - 2.6 | 1.900 | 2.600 | Range |
| Mn | 0.3 - 0.6 | 0.300 | 0.600 | Range |
| Mo | 0.87 - 1.13 | 0.870 | 1.130 | Range |
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.
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.
Looking for this grade under another name?
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