C10D2
C10D2 is a material in the category Case hardening steels, held under material number 1.1114. Its recorded composition includes C 0.08–0.12%, Si ≤ 0.3%, Cr ≤ 0.1%, Mn 0.3–0.5% and Cu ≤ 0.15%. We list 2 designations recorded for this grade, in the standards UNS and AISI / SAE. Its recorded density is 7.85 g/cm³.
If you came for one of these
The most-used names for this grade.About Case hardening steels
Case hardening steels are steels designed to develop a hard, wear-resistant surface while retaining a tough and ductile core. They are used for components such as gears, shafts and other machine parts exposed to contact wear and cyclic loading.
This describes the material class as a whole. Always confirm the individual grade against the standard before ordering.
Also known as
3 designations · 3 standards · nothing hidden- C10D2This grade’s own name
Every designation on file is listed — no truncation, no “+ n more”. Each one is itself a route that leads back here.
Chemical composition
11 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 |
|---|---|
0.08–0.12 | |
≤ 0.3 | |
0.3–0.5 | |
0.02 | |
0.025 | |
≤ 0.1 | |
≤ 0.05 | |
≤ 0.1 | |
≤ 0.15 | |
≤ 0.01 | |
0.007 |
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 | 0,08-0,12 | 0.080 | 0.120 | Range |
| N | 0,007 | 0.007 | 0.007 | Exact |
| Al | ≤0,01 | — | 0.010 | Max |
| Si | ≤0,30 | — | 0.300 | Max |
| P | 0,02 | 0.020 | 0.020 | Exact |
| S | 0,025 | 0.025 | 0.025 | Exact |
| Cr | ≤0,10 | — | 0.100 | Max |
| Mn | 0,30-0,50 | 0.300 | 0.500 | Range |
| Ni | ≤0,10 | — | 0.100 | Max |
| Cu | ≤0,15 | — | 0.150 | Max |
| Mo | ≤0,05 | — | 0.050 | 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
computed from composition · °CThese four temperatures are a CALCULATION from this grade's own composition, using the published Li, Niebuhr, Meekisho & Atteridge (1998) model — never a measurement, and computed from the UPPER BOUND of each element's specified range, not a mid-range figure. Where this grade also has a measured transformation point (Ac1, Ac3, Ar1, Ar3) on file, it is shown separately, in Physical & mechanical properties, and is never replaced by the predicted figures here — Ae (predicted, equilibrium) and Ac/Ar (measured, on heating or cooling) are different physical quantities and can differ by tens of degrees; a mismatch between the two is not an error in either.
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.
Similar grades — and why
Selection rule, stated so you can disagree with it: same number class 1.1, a shared category, and a published range for Mn / Si that overlaps this grade’s. These are neighbours in composition space — they are not equivalents, and none is claimed to be interchangeable with this grade.
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.