ASTM A291 Grade 8 Class I Liquid Quenched and Tempered
Equivalent material: DIN 1.8509, DIN 41CrAlMo7, DIN 41CrAlMo7-10, AFNOR 40CAD6.12, BS 905M39, UNI 41CrAlMo7, SS 2940, UNE 41CrAlMo7, AISI E71400, SAE E71400, JIS SACM645, EN 41CrAlMo7-10, EN 1.8509, GOST 38Ch2MJuA, ASTM Grade 23 Type 1
ASTM A291 Grade 8 Class I Liquid Quenched and Tempered general
| Property |
Temperature |
Value |
Comment |
| Density |
23.0 °C |
Density of 7.8 g/cm³ |
Typical for Steel |
ASTM A291 Grade 8 Class I Liquid Quenched and Tempered chemical
| Property |
Value |
| Aluminium |
Aluminium of 0.85 - 1.3 % |
| Carbon |
Carbon of 0.38 - 0.45 % |
| Chromium |
Chromium of 1.4 - 1.8 % |
| Copper |
Copper of 0.35 % |
| Manganese |
Manganese of 0.4 - 0.7 % |
| Molybdenum |
Molybdenum of 0.3 - 0.45 % |
| Nickel |
Nickel of 0.3 % |
| Phosphorus |
Phosphorus of 0.04 % |
| Silicon |
Silicon of 0.4 % |
| Sulfur |
Sulfur of 0.04 % |
| Vanadium |
Vanadium of 0.03 % |
ASTM A291 Grade 8 Class I Liquid Quenched and Tempered mechanical
| Property |
Temperature |
Value |
Comment |
| Charpy impact energy |
23.0 °C |
Charpy impact energy of 11 J |
- |
| Elastic modulus |
23.0 °C |
Elastic modulus of 190 - 210 GPa |
Typical for Steel |
| Elongation A50 |
23.0 °C |
Elongation A50 of 15 % |
- |
| Hardness, Brinell |
23.0 °C |
Hardness, Brinell of 255 - 302 [-] |
- |
| Poisson's ratio |
23.0 °C |
Poisson's ratio of 0.3 [-] |
Typical for Steel |
| Reduction of area |
23.0 °C |
Reduction of area of 40 % |
- |
| Tensile strength |
23.0 °C |
Tensile strength of 825 MPa |
- |
| Yield strength Rp0.2 |
23.0 °C |
Yield strength Rp0.2 of 585 MPa |
- |
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