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AISI 1040 |
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| Category | Steel |
| Class | Carbon steel |
| Type | Standard |
| Designations |
Germany: DIN 1.1186
Japan: JIS S 4O C
United Kingdom: B.S. 080 A 40 , B.S. 2 S 93
United States: ASTM A108 , ASTM A29 , ASTM A510 , ASTM A519 , ASTM A546 , ASTM A576 , ASTM A682 , MIL SPEC MIL-S-11310 (CS1040) , SAE J403 , SAE J412 , SAE J414 , UNS G10400
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| Composition |
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| Element | Weight % |
| C |
0.37-0.44 |
| Mn |
0.60-0.90 |
| P |
0.04 (max) |
| S |
0.05 (max) |
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| Mechanical Properties |
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| Properties | Conditions |
| T (°C) | Treatment |
| Density (×1000 kg/m3) |
7.845 |
25 |
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| Poisson's Ratio |
0.27-0.30 |
25 |
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| Elastic Modulus (GPa) |
190-210
|
25 |
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| Tensile Strength (Mpa) |
518.8 |
25 |
annealed at 790°C more |
| Yield Strength (Mpa) |
353.4 |
| Elongation (%) |
30.2 |
| Reduction in Area (%) |
57.2 |
| Hardness (HB) |
149 |
25 |
annealed at 790°C more |
Impact Strength (J)
(Izod) |
44.3 |
25 |
annealed at 790°C more |
| Thermal Properties |
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| Properties | Conditions |
| T (°C) | Treatment |
| Thermal Expansion (10-6/ºC) |
13.6 |
20-1000 more |
annealed |
| Electric Properties |
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| Properties | Conditions |
| T (°C) | Treatment |
| Electric Resistivity (10-9W-m) |
171 |
20 more |
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