ASTM A29 / A29M 1040 steel Specification for General Requirements for Steel Bars, Carbon and Alloy, Hot-Wrought.
ASTM1040 steel application:Bolts,Studs,Gears,Axles,Shafts,Machine parts.
ASTM1040 Chemical composition %:
Grade |
Chemical composition %: | |||||||
| C | Si | Mn | S | P | Cr | Ni | Cu | |
| ASTM1040 | 0.37-0.44 | 0.17-0.37 | 0.60-0.90 | ≤0.05 | ≤0.04 | ≤0.25 | ≤0.25 | ≤0.25 |
ASTM1040 mechanical properties:
Grade |
Mechanical properties: | ||||||
| Tensile strength σb (Mpa) |
Yield strength σs (Mpa) |
Elongation δ5/(%) |
Percentage reduction of areaψ (%) | Impact AKv(J) | Impact toughness value of alpha kv (J/cm2) | Hardness No heat treatment |
|
| min | min | min | min | min | min | max | |
| ASTM1040 | 570(58) | 335(34) | 19 | 45 | 47 | 59(6) | 217 |
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