ASTM A29/A29M 1049 Introduce
ASTM A29/A29M 1049 steel is a family of low alloy steels that are commonly used in the manufacture of mechanical components and parts. It is composed primarily of iron, with small amounts of other alloying elements such as manganese, silicon, and carbon. The low carbon content and tight control over chemical composition in ASTM A29/A29M 1049 steel help to produce a very uniform, heat-treatable steel. The alloying elements and low carbon content also contribute to making ASTM A29/A29M 1049 steel very ductile, strong, and resistant to wear and fatigue. ASTM A29/A29M 1049 steel is widely used for applications that require superior mechanical properties, such as parts for machinery, automotive and aerospace applications.
Smelting temperature:1921°C - 1347°C
Application:Hot forged and cold worked carbon steel and alloy steel rods
ASTM A29/A29M 1049 Material Chemical Composition
The chemical composition of the ASTM A29/A29M 1049 steel are as follows:
| Element | Min | Max |
|---|---|---|
| PhOsphorus (P) | - | 0.0400 |
| Sulfur (S) | - | 0.0500 |
| Manganese (Mn) | 0.6000 | 0.9000 |
| Carbon (C) | 0.4600 | 0.5300 |
ASTM A29/A29M 1049 Material Mechanical Properties
Elasticity, or the ability of a material to return to its original shape after being subjected to a load, is an important property of ASTM A29/A29M 1049 steel. The elasticity of ASTM A29/A29M 1049 steel depends on the grade of steel, the heat treatment, and the load applied; it typically ranges from 200 to 500 MPa.
The mechanical properties of the ASTM A29/A29M 1049 steel are as follows:
| YieldRp0.2 | ≤ 452 (MPa) |
| TeileRm | ≤ 234 (MPa) |
| ImpactKV/Ku | 11(J) |
| ElongationA | 11% |
| Reduction in cross section on fractureZ | 34% |
| As-Heat-Treated Condition | Solution and Aging, Annealing, Ausaging, Q+T,etc |
| Brinell hardness (HBW) | 414 |
ASTM A29/A29M 1049 Material Thermal Properties
The thermal performance parameters of the ASTM A29/A29M 1049 steel are as follows:
| Temperature (°C) | 14 | 214 | 134 |
| Modulus of elasticity (GPa) | - | 263 | - |
| Mean coefficient of thermal expaion ×10-6/(°C) | - | - | 12 |
| Thermal conductivity (W/m·°C) | - | 41.3 | 13.2 |
| Specific thermal capacity (J/kg·°C) | - | 311 | - |
| Specific electrical resistivity (Ω mm²/m) | 0.24 | - | - |
| Deity (kg/dm³) | - | - | 324 |
| Poisson’s coefficient, ν | - | - | 122 |
ASTM A29/A29M 1049 Material Machining Technology
ASTM A29/A29M 1049 steel is an easy material to machine, but certain steps must be taken to ensure the final product meets the customer's requirements. The correct tooling and cutting strategies must be used in order to minimize wear, cutting forces, and heat generation in the cutting zone.