ASTM A29/A29M 10L21 Introduce
ASTM A29/A29M 10L21 steel is an alloy steel made up of iron, carbon, and other alloying elements. It has superior ductility, high tensile strength, hardness, toughness, and wear resistance. It is designed to meet a wide range of applications in the industrial, automotive, and aerospace industries.
Smelting temperature:1146°C - 1166°C
Application:Hot forged and cold worked carbon steel and alloy steel rods
ASTM A29/A29M 10L21 Material Mechanical Properties
Heat treatment is an important step that determines the mechanical properties of ASTM A29/A29M 10L21 steel. Heat treatment involves heating the steel to a specific temperature and then rapidly cooling it, usually with air or oil. The temperature and rate of cooling must be closely monitored and controlled to ensure the desired mechanical properties are obtained. For example, if the steel is cooled too quickly, it will be brittle and prone to cracking or breaking. On the other hand, if it is cooled too slowly, the steel will be weak and easily deformed.
The mechanical properties of the ASTM A29/A29M 10L21 steel are as follows:
| YieldRp0.2 | ≤ 375 (MPa) |
| TeileRm | ≤ 691 (MPa) |
| ImpactKV/Ku | 42(J) |
| ElongationA | 44% |
| Reduction in cross section on fractureZ | 43% |
| As-Heat-Treated Condition | Solution and Aging, Annealing, Ausaging, Q+T,etc |
| Brinell hardness (HBW) | 234 |
ASTM A29/A29M 10L21 Material Thermal Properties
The thermal performance parameters of the ASTM A29/A29M 10L21 steel are as follows:
| Temperature (°C) | 44 | 794 | 373 |
| Modulus of elasticity (GPa) | - | 255 | - |
| Mean coefficient of thermal expaion ×10-6/(°C) | - | - | 22 |
| Thermal conductivity (W/m·°C) | - | 33.3 | 33.2 |
| Specific thermal capacity (J/kg·°C) | - | 244 | - |
| Specific electrical resistivity (Ω mm²/m) | 0.42 | - | - |
| Deity (kg/dm³) | - | - | 123 |
| Poisson’s coefficient, ν | - | - | 434 |
ASTM A29/A29M 10L21 Material Machining Technology
When machining ASTM A29/A29M 10L21 steel, the cutting parameters must be set correctly in order to ensure satisfactory results. The cutting speed is usually between 20 to 50 meters/minute (760 to 1,967 feet/minute). The feed rate should usually be between 0.05 and 0.2 millimeters/revolution (0.002 to 0.007 in/rev). The cutting depth will depend on the tool being used, but typically ranges between 2 to 5 millimeters (0.078 to 0.19 in).