HS7-5-3
HS7-5-3 is a material in the category High-speed steels, held under material number 1.3347. Its recorded composition includes C 1.16–1.2%, V 2.6–2.8%, Cr 3.8–4.2%, Mo 5.1–5.5% and W 7–7.5%. No cross-standard equivalents are recorded for this grade yet. Its recorded density is 7.85 g/cm³.
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
9 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 |
|---|---|
1.16–1.2 | |
0.2–0.55 | |
0.2–0.4 | |
0.03 | |
0.03 | |
3.8–4.2 | |
5.1–5.5 | |
2.6–2.8 | |
7–7.5 |
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 | 1,16-1,20 | 1.160 | 1.200 | Range |
| Si | 0,20-0,55 | 0.200 | 0.550 | Range |
| P | 0,03 | 0.030 | 0.030 | Exact |
| S | 0,03 | 0.030 | 0.030 | Exact |
| V | 2,60-2,80 | 2.600 | 2.800 | Range |
| Cr | 3,80-4,20 | 3.800 | 4.200 | Range |
| Mn | 0,20-0,40 | 0.200 | 0.400 | Range |
| Mo | 5,10-5,50 | 5.100 | 5.500 | Range |
| W | 7,00-7,50 | 7.000 | 7.500 | 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.
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