HS4-8-3
HS4-8-3 is a material in the category High-speed steels, held under material number 1.3336. Its recorded composition includes C 1.18–1.23%, V 2.6–2.8%, Cr 3.8–4.5%, Mo 8–9% and W 3–4%. 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 |
|---|---|
1.18–1.23 | |
0.2–0.5 | |
0.2–0.4 | |
0.03 | |
0.03 | |
3.8–4.5 | |
8–9 | |
2.6–2.8 | |
3–4 |
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 | 1,18-1,23 | 1.180 | 1.230 | Range |
| Si | 0,20-0,50 | 0.200 | 0.500 | 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 | 3,80-4,50 | 3.800 | 4.500 | Range |
| Mn | 0,20-0,40 | 0.200 | 0.400 | Range |
| Mo | 8,00-9,00 | 8.000 | 9.000 | Range |
| W | 3,00-4,00 | 3.000 | 4.000 | 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 Mo / 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.
Mo 8,00-9,00 · Cr 3,50-4,50
- ΔMo 0.00
- ΔCr 0.15
- 1 designations
Mo 8,20-9,20 · Cr 3,50-4,50
- ΔMo 0.20
- ΔCr 0.15
- 13 designations
Mo 8,00-9,20 · Cr 3,50-4,20
- ΔMo 0.10
- ΔCr 0.30
- 9 designations
Mo 8,00-9,20 · Cr 3,50-4,20
- ΔMo 0.10
- ΔCr 0.30
- 9 designations
Mo 9,00-10,0 · Cr 3,50-4,50
- ΔMo 1.00
- ΔCr 0.15
- 28 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.