ASTM A29/A29M 41L47 Introduce
ASTM A29/A29M 41L47 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 41L47 steel depend on various factors, including composition, heat treatment, and other environmental conditions.
Smelting temperature:1443°C - 1632°C
Application:Hot forged and cold worked carbon steel and alloy steel rods
ASTM A29/A29M 41L47 Material Chemical Composition
The chemical composition of the ASTM A29/A29M 41L47 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) | 0.1500 | 0.2500 |
| Manganese (Mn) | 0.7500 | 1.0000 |
| Copper (Cu) | - | 0.3500 |
| Chromium (Cr) | 0.8000 | 1.1000 |
| Carbon (C) | 0.4800 | 0.5300 |
ASTM A29/A29M 41L47 Material Mechanical Properties
ASTM A29/A29M 41L47 steel also has good corrosion resistance. This corrosion resistance is due to the alloy's chromium content, which helps to form a thin protective layer on the steel's surface. This layer helps to prevent corrosion and can increase the life of the steel.
The mechanical properties of the ASTM A29/A29M 41L47 steel are as follows:
| YieldRp0.2 | ≤ 138 (MPa) |
| TeileRm | ≤ 138 (MPa) |
| ImpactKV/Ku | 23(J) |
| ElongationA | 33% |
| Reduction in cross section on fractureZ | 31% |
| As-Heat-Treated Condition | Solution and Aging, Annealing, Ausaging, Q+T,etc |
| Brinell hardness (HBW) | 221 |
ASTM A29/A29M 41L47 Material Thermal Properties
The thermal performance parameters of the ASTM A29/A29M 41L47 steel are as follows:
| Temperature (°C) | 44 | 327 | 156 |
| Modulus of elasticity (GPa) | - | 647 | - |
| Mean coefficient of thermal expaion ×10-6/(°C) | - | - | 23 |
| Thermal conductivity (W/m·°C) | - | 13.3 | 11.2 |
| Specific thermal capacity (J/kg·°C) | - | 232 | - |
| Specific electrical resistivity (Ω mm²/m) | 0.34 | - | - |
| Deity (kg/dm³) | - | - | 322 |
| Poisson’s coefficient, ν | - | - | 224 |
ASTM A29/A29M 41L47 Material Machining Technology
The cutting forces and heat generated during machining should be kept at a minimum to prevent part deformation. The use of moderate amounts of cutting fluid can help to reduce cutting forces and promote chip evacuation. It can also improve tool life by preventing wear and heat damage to the cutting edges.