ASTM A29/A29M A29 41L18 Introduce
ASTM A29/A29M A29 41L18 steel is a popular material choice among machine manufacturers due to its relative strength and ductility. It is an alloy of carbon and iron, and it has been used in machinery such as transmissions, gears, and bearings for many years. As with all metals, the mechanical properties of ASTM A29/A29M A29 41L18 steel depend on various factors, including composition, heat treatment, and other environmental conditions.
Smelting temperature:1797°C - 1683°C
Application:Hot forged and cold worked carbon steel and alloy steel rods
ASTM A29/A29M A29 41L18 Material Chemical Composition
The chemical composition of the ASTM A29/A29M A29 41L18 steel are as follows:
| Element | Min | Max |
|---|---|---|
| Silicon (Si) | 0.1500 | 0.3500 |
| Sulfur (S) | - | 0.0400 |
| Lead (Pb) | 0.1500 | 0.3500 |
| PhOsphorus (P) | - | 0.0350 |
| Nickel (Ni) | - | 0.2500 |
| Molybdenum (Mo) | 0.0800 | 0.1500 |
| Manganese (Mn) | 0.7000 | 0.9000 |
| Copper (Cu) | - | 0.3500 |
| Chromium (Cr) | 0.4000 | 0.6000 |
| Carbon (C) | 0.1800 | 0.2300 |
ASTM A29/A29M A29 41L18 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 41L18 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 41L18 steel are as follows:
| YieldRp0.2 | ≤ 125 (MPa) |
| TeileRm | ≤ 624 (MPa) |
| ImpactKV/Ku | 23(J) |
| ElongationA | 13% |
| Reduction in cross section on fractureZ | 12% |
| As-Heat-Treated Condition | Solution and Aging, Annealing, Ausaging, Q+T,etc |
| Brinell hardness (HBW) | 131 |
ASTM A29/A29M A29 41L18 Material Thermal Properties
The thermal performance parameters of the ASTM A29/A29M A29 41L18 steel are as follows:
| Temperature (°C) | 44 | 476 | 714 |
| Modulus of elasticity (GPa) | - | 247 | - |
| Mean coefficient of thermal expaion ×10-6/(°C) | - | - | 34 |
| Thermal conductivity (W/m·°C) | - | 22.3 | 23.2 |
| Specific thermal capacity (J/kg·°C) | - | 114 | - |
| Specific electrical resistivity (Ω mm²/m) | 0.13 | - | - |
| Deity (kg/dm³) | - | - | 233 |
| Poisson’s coefficient, ν | - | - | 422 |
ASTM A29/A29M A29 41L18 Material Machining Technology
ASTM A29/A29M A29 41L18 steel is extremely versatile, which is why it is frequently used in machining processes. The machining of ASTM A29/A29M A29 41L18 steel requires the use of high speed steel, cobalt steel, and high performance cutting tools which is why it is important to understand the machining behaviors of this material in order to obtain the best part quality and productivity.