ASTM A29/A29M A29 11L40 Introduce
ASTM A29/A29M A29 11L40 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 A29 11L40 steel help to produce a very uniform, heat-treatable steel. The alloying elements and low carbon content also contribute to making ASTM A29/A29M A29 11L40 steel very ductile, strong, and resistant to wear and fatigue. ASTM A29/A29M A29 11L40 steel is widely used for applications that require superior mechanical properties, such as parts for machinery, automotive and aerospace applications.
Smelting temperature:1742°C - 1322°C
Application:Hot forged and cold worked carbon steel and alloy steel rods
ASTM A29/A29M A29 11L40 Material Mechanical Properties
Yield strength is the ability of a material to withstand stress without permanent deformation or cracking. The yield strength of ASTM A29/A29M A29 11L40 steel is typically between 250 and 400 MPa, depending on the grade of steel and the heat treatment. This strength provides a good balance of strength and ductility suitable for many applications.
The mechanical properties of the ASTM A29/A29M A29 11L40 steel are as follows:
| YieldRp0.2 | ≤ 534 (MPa) |
| TeileRm | ≤ 948 (MPa) |
| ImpactKV/Ku | 43(J) |
| ElongationA | 21% |
| Reduction in cross section on fractureZ | 41% |
| As-Heat-Treated Condition | Solution and Aging, Annealing, Ausaging, Q+T,etc |
| Brinell hardness (HBW) | 332 |
ASTM A29/A29M A29 11L40 Material Thermal Properties
The thermal performance parameters of the ASTM A29/A29M A29 11L40 steel are as follows:
| Temperature (°C) | 44 | 643 | 546 |
| Modulus of elasticity (GPa) | - | 585 | - |
| Mean coefficient of thermal expaion ×10-6/(°C) | - | - | 33 |
| Thermal conductivity (W/m·°C) | - | 14.3 | 23.2 |
| Specific thermal capacity (J/kg·°C) | - | 333 | - |
| Specific electrical resistivity (Ω mm²/m) | 0.13 | - | - |
| Deity (kg/dm³) | - | - | 132 |
| Poisson’s coefficient, ν | - | - | 122 |
ASTM A29/A29M A29 11L40 Material Machining Technology
ASTM A29/A29M A29 11L40 steel is an extremely versatile and durable alloy that can be used in a range of industrial settings. Its chemical properties make it ideal for heavy-duty applications that require high strength, formability, and corrosion resistance. It is also easily weldable, making it a great choice for components and parts in direct contact with other parts. These qualities are what make ASTM A29/A29M A29 11L40 the alloy of choice for a variety of industrial applications.