STHA23
STHA23 is a grade designated under KS. Its recorded composition includes C ≤ 0.15%, Si 0.5–1%, Cr 1–1.5%, Mn 0.3–0.6% and Mo 0.45–0.65%. 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 | |
0.5–1 | |
0.3–0.6 | |
≤ 0.03 | |
≤ 0.03 | |
1–1.5 | |
0.45–0.65 |
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 | 0.5 - 1 | 0.500 | 1.000 | Range |
| P | max 0.03 | — | 0.030 | Max |
| S | max 0.03 | — | 0.030 | Max |
| Cr | 1 - 1.5 | 1.000 | 1.500 | Range |
| Mn | 0.3 - 0.6 | 0.300 | 0.600 | Range |
| Mo | 0.45 - 0.65 | 0.450 | 0.650 | 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?
Search the catalogue by designation, material number or composition — every name on this page is itself a way in.