18CrMo45KW
18CrMo45KW is a designation in UNI for the material held under material number 1.7262, also listed as 15CrMo5. It is a material in the category Case hardening steels. We list 63 designations recorded for this grade, in the standards DIN / EN, AISI / SAE, BS, AFNOR, UNE, JIS, GB, GOST, UNI, SS, ČSN, PN, SRPS, MSZ, STAS, BDS, ÖNORM, NBN and KS.
If you came for one of these
The most-used names for this grade.About Case hardening steels
Case hardening steels are steels designed to develop a hard, wear-resistant surface while retaining a tough and ductile core. They are used for components such as gears, shafts and other machine parts exposed to contact wear and cyclic loading.
This describes the material class as a whole. Always confirm the individual grade against the standard before ordering.
Also known as
63 designations · 19 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
7 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 |
|---|---|
0.13–0.17 | |
0.15–0.35 | |
0.8–1.1 | |
0.035 | |
0.035 | |
1–1.3 | |
0.2–0.3 |
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 | 0,13-0,17 | 0.130 | 0.170 | 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 |
| Cr | 1,00-1,30 | 1.000 | 1.300 | Range |
| Mn | 0,80-1,10 | 0.800 | 1.100 | 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.
Heat treatment
GB /T 5310-2023
- Normalizing900–960 °C
- Tempering680–730 °C
- Quenching900 °C
- Tempering680–750 °C
- Normalizing900–960 °C
- Tempering680–730 °C
The source lists these operations without stating an order or an alternation. They are shown unordered on purpose.
Supply condition
- Normalizing and Tempering6≤t≤60
- Normalizing and TemperingLongitudinal
Conditions the standard permits on delivery. No temperature or medium is published for these, so no order and no alternation is implied.
Source: www.caishuku.com
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.
Cr 1,10-1,40 · Mn 0,90-1,20
- ΔCr 0.10
- ΔMn 0.10
- 6 designations
Cr 0,90-1,20 · Mn 0,60-0,90
- ΔCr 0.10
- ΔMn 0.20
- 25 designations
Cr 0,90-1,20 · Mn 0,60-0,90
- ΔCr 0.10
- ΔMn 0.20
- 1 designations
Cr 0,90-1,20 · Mn 0,60-0,90
- ΔCr 0.10
- ΔMn 0.20
- 7 designations
Cr 1,00-1,30 · Mn 1,10-1,40
- ΔCr 0.00
- ΔMn 0.30
- 45 designations
Cr 1,00-1,30 · Mn 1,10-1,40
- ΔCr 0.00
- ΔMn 0.30
- 17 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.