Category | Metal , Ferrous Metal , Tool Steel |
Manufacturer | Crucible Steel |
Trade Name | |
Port | Shanghai port,China |
Trade Terms | FOB, CFR, CIF |
Payment Terms | L/C, T/T, Western Union |
Download PDF | Crucible Steel REX® M7N High Speed Steel, AISI M7.pdf |
Price | EMAIL US sales@lookpolymers.com |
Physical Properties | Metric | English | Comments |
---|---|---|---|
Density | 7.94 g/cc | 0.287 lb/in³ |
Mechanical Properties | Metric | English | Comments |
---|---|---|---|
Hardness, Brinell | 229 - 248 | 229 - 248 | |
Hardness, Rockwell C | 57 @Tempering Temp. 621 °C |
57 @Tempering Temp. 1150 °F |
oil quenched from 2200°F then tempered |
60 @Tempering Temp. 607.2 °C |
60 @Tempering Temp. 1125 °F |
oil quenched from 2200°F then tempered | |
62 @Tempering Temp. 593 °C |
62 @Tempering Temp. 1100 °F |
oil quenched from 2200°F then tempered | |
64 @Tempering Temp. 579.4 °C |
64 @Tempering Temp. 1075 °F |
oil quenched from 2200°F then tempered | |
65.2 @Tempering Temp. 566 °C |
65.2 @Tempering Temp. 1050 °F |
oil quenched from 2200°F then tempered | |
66 @Tempering Temp. 538 °C |
66 @Tempering Temp. 1000 °F |
oil quenched from 2200°F then tempered | |
66 @Tempering Temp. 551.7 °C |
66 @Tempering Temp. 1025 °F |
oil quenched from 2200°F then tempered | |
Modulus of Elasticity | 207 GPa | 30000 ksi |
Thermal Properties | Metric | English | Comments |
---|---|---|---|
CTE, linear | 9.61 µm/m-°C @Temperature 37.8 - 260 °C |
5.34 µin/in-°F @Temperature 100 - 500 °F |
|
11.4 µm/m-°C @Temperature 37.8 - 427 °C |
6.35 µin/in-°F @Temperature 100 - 800 °F |
||
12.3 µm/m-°C @Temperature 37.8 - 538 °C |
6.81 µin/in-°F @Temperature 100 - 1000 °F |
Component Elements Properties | Metric | English | Comments |
---|---|---|---|
Carbon, C | 1.0 % | 1.0 % | |
Chromium, Cr | 3.75 % | 3.75 % | |
Iron, Fe | 82 % | 82 % | as balance |
Manganese, Mn | 0.30 % | 0.30 % | |
Molybdenum, Mo | 8.75 % | 8.75 % | |
Silicon, Si | 0.40 % | 0.40 % | |
Tungsten, W | 1.75 % | 1.75 % | |
Vanadium, V | 2.0 % | 2.0 % |
Chemical Properties | Metric | English | Comments |
---|---|---|---|
Critical Temperature | 832 °C | 1530 °F |