-
- +972 737599499
- Get a quote
- EN |HE
AISI M50 is a through hardening grade with high hardness and high compressive strength at elevates temperatures. It is produced exclusively as a double vacuum melted product using vacuum induction melting plus VAC-ARC remelting. This VIM-VAR process provides for optimum control and reproducibility of chemistry, micro cleanliness and superior fatigue resistance.
The grade is widely used for critical aircraft engine bearings operating at elevated temperatures. With its combination of good hot hardness and excellent rolling contact fatigue strength, M50 VIM-VAR steel is ideally suited for highly stressed parts such as bearings and gears designed for service up to about 427°C.
| Weight % | C | Mn | Si | Cr | Ni | Mo | V | S | P | Fe |
|---|---|---|---|---|---|---|---|---|---|---|
| minimum | 0.78 | 0.15 | 0.20 | 3.75 | — | 3.90 | 0.80 | — | — | reminder |
| maximum | 0.88 | 0.45 | 0.60 | 4.50 | 0.30 | 4.75 | 1.25 | 0.030 | 0.030 |
| Characteristics | English | Metric | |
|---|---|---|---|
| Nominal density
(68°F/20°C) |
0.29 lbs/in3 | 7.87 g/cm3 | |
| Coefficient of thermal
expansion |
70°F – 200°F
21°C – 93°C |
6.23 micro in/in- °F | 11.21 micro m/m- °K |
| 70°F – 400°F
21°C – 204°C |
6.58 micro in/in- °F | 11.84 micro m/m- °K | |
| 70°F – 600°F
21°C – 316°C |
6.83 micro in/in- °F | 12.29 micro m/m- °K | |
| 70°F – 800°F
21°C – 427°C |
7.05 micro in/in- °F | 12.69 micro m/m- °K | |
| 70°F – 1000°F
21°C – 538°C |
7.38 micro in/in- °F | 13.28 micro m/m- °K |
| Hardness – Rockwell C | Modulus | Izod Impact (Unnotched) | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Oil
quenched from 1149°C |
Oil
quenched from 1107° |
Oil
quenched from 1038°C |
Of elasticity
|
Oil quenched
at 1121°C 482°C Temper Temperature |
Oil quenched
at 1121°C 594°C Temper Temperature |
Oil quenched
at 1121°C 622°C Temper Temperature |
|||||
| GPa | Ksi ∙ 103 | J | ft-lb | J | ft-lb | J | ft-lb | ||||
| All | 64 | 65 | 64.5 | 214 | 31 | 36.6 | 27.0 | 67.8 | 50.0 | 74.6 | 55.0 |
in Israel, the leading company for Modular Profile solutions and related products