SDP3
SDP3 is a grade designated under JIS. Its recorded composition includes C ≤ 0.12%, Si 0.25–0.75%, Cr 0.3–1.25%, Ni ≤ 0.65% and Cu 0.25–0.6%. No cross-standard equivalents are recorded for this grade yet. Recorded mechanical properties include Rm 450 N/mm², Re 315 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 |
|---|---|
≤ 0.12 | |
0.25–0.75 | |
0.2–0.5 | |
0.07–0.15 — | |
≤ 0.04 | |
0.3–1.25 | |
≤ 0.65 | |
0.25–0.6 |
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 0.12 | — | 0.120 | Max |
| Si | 0.25 - 0.75 | 0.250 | 0.750 | Range |
| P | 0.07 - 0.15 | 0.070 | 0.150 | Range |
| S | max 0.04 | — | 0.040 | Max |
| Cr | 0.3 - 1.25 | 0.300 | 1.250 | Range |
| Mn | 0.2 - 0.5 | 0.200 | 0.500 | Range |
| Ni | max 0.65 | — | 0.650 | Max |
| Cu | 0.25 - 0.6 | 0.250 | 0.600 | 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: 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.
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.