1.3242
1.3242 is the material number of the grade also listed as HS7-7-7-11. It is a material in the category High-speed steels. We list 1 designations recorded for this grade, in the standards DIN / EN.
- Material no. 1.3242
- Category High-speed steels · 59 grades
- Designations 1
If you came for one of these
The most-used names for this grade.About High-speed steels
High-speed steels are alloyed tool steels designed to retain hardness and cutting ability when tools heat up during high-speed machining. Their hot hardness and wear resistance make them suitable for cutting tools such as drills, milling cutters, taps and broaches.
This describes the material class as a whole. Always confirm the individual grade against the standard before ordering.
Also known as
1 designations · 1 standards · nothing hiddenEvery designation on file is listed — no truncation, no “+ n more”. Each one is itself a route that leads back here.
Chemical composition
10 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 |
|---|---|
2.2–2.4 — | |
≤ 0.7 | |
≤ 0.4 | |
0.05 — | |
0.03 | |
3.5–4.5 | |
6.7–7.3 | |
6.3–6.7 — | |
6.7–7.3 | |
10–11 |
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 | 2,20-2,40 | 2.200 | 2.400 | Range |
| Si | ≤0,70 | — | 0.700 | Max |
| P | 0,05 | 0.050 | 0.050 | Exact |
| S | 0,03 | 0.030 | 0.030 | Exact |
| V | 6,30-6,70 | 6.300 | 6.700 | Range |
| Cr | 3,50-4,50 | 3.500 | 4.500 | Range |
| Mn | ≤0,40 | — | 0.400 | Max |
| Co | 10,0-11,0 | 10.000 | 11.000 | Range |
| Mo | 6,70-7,30 | 6.700 | 7.300 | Range |
| W | 6,70-7,30 | 6.700 | 7.300 | 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 1.3, a shared category, and a published range for Co / Mo 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.