17CrMoV10
17CrMoV10 is a material in the category Hydrogen resistant steels, held under material number 1.7766. Its recorded composition includes C 0.15–0.2%, Si 0.15–0.35%, Cr 2.7–3%, Mn 0.3–0.5% and Mo 0.2–0.3%. We list one designation recorded for this grade, in the standard ČSN. Its recorded density is 7.85 g/cm³.
About Hydrogen resistant steels
Hydrogen resistant steels are steels designed to withstand hydrogen-related damage, including hydrogen embrittlement and hydrogen attack. They are used for pressure vessels, piping and process equipment exposed to hydrogen-containing environments, where resistance to hydrogen ingress and loss of toughness is important.
This describes the material class as a whole. Always confirm the individual grade against the standard before ordering.
Also known as
2 designations · 2 standards · nothing hidden- 17CrMoV10This 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
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 |
|---|---|
0.15–0.2 | |
0.15–0.35 | |
0.3–0.5 | |
0.035 | |
0.035 | |
2.7–3 | |
0.2–0.3 | |
0.1–0.2 |
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 | 0,15-0,20 | 0.150 | 0.200 | Range |
| Si | 0,15-0,35 | 0.150 | 0.350 | Range |
| P | 0,035 | 0.035 | 0.035 | Exact |
| S | 0,035 | 0.035 | 0.035 | Exact |
| V | 0,10-0,20 | 0.100 | 0.200 | Range |
| Cr | 2,70-3,00 | 2.700 | 3.000 | Range |
| Mn | 0,30-0,50 | 0.300 | 0.500 | Range |
| Mo | 0,20-0,30 | 0.200 | 0.300 | 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.
Similar grades — and why
Selection rule, stated so you can disagree with it: same number class 1.7, a shared category, and a published range for Cr / Mn 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.