1.3390
1.3390 is the material number this entry is held under. It is a material in the category High-speed steels.
- Material no. 1.3390
- Category High-speed steels · 59 grades
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.
Chemical composition
5 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 |
|---|---|
0.88 | |
4 | |
3 | |
2 | |
6.3 |
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 | 0,88 | 0.880 | 0.880 | Exact |
| V | 2 | 2.000 | 2.000 | Exact |
| Cr | 4 | 4.000 | 4.000 | Exact |
| Mo | 3 | 3.000 | 3.000 | Exact |
| W | 6,3 | 6.300 | 6.300 | Exact |
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: Mn, Si, 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 W / Cr 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.
W 5,90-6,70 · Cr 3,80-4,50
- ΔW 0.00
- ΔCr 0.15
- 49 designations
W 5,90-6,70 · Cr 3,80-4,50
- ΔW 0.00
- ΔCr 0.15
- 1 designations
W 5,90-6,70 · Cr 3,80-4,50
- ΔW 0.00
- ΔCr 0.15
- 2 designations
W 5,90-6,70 · Cr 3,80-4,50
- ΔW 0.00
- ΔCr 0.15
- 21 designations
W 5,90-6,70 · Cr 3,80-4,50
- ΔW 0.00
- ΔCr 0.15
- 46 designations
W 5,90-6,70 · Cr 3,80-4,50
- ΔW 0.00
- ΔCr 0.15
- 1 designations
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.