ASME SA-29/SA-29M 12L11 Introduce
The ASME SA-29/SA-29M 12L11 specification is widely used and accepted in the industry. It is also accepted by many government and private organizations. The specification covers a wide range of bars and is suitable for many applications. It is commonly used in the fabrication of pressure vessels and other components that require hot-rolled carbon steel bars.
Smelting temperature:1188°C - 1238°C
Application:General requirements for hot working and cold finishing carbon steel and alloy steel bars
ASME SA-29/SA-29M 12L11 Material Chemical Composition
The chemical composition of the ASME SA-29/SA-29M 12L11 steel are as follows:
| Element | Min | Max |
|---|---|---|
| Sulfur (S) | 0.1000 | 0.1500 |
| Lead (Pb) | 0.1500 | 0.3500 |
| PhOsphorus (P) | 0.0700 | 0.1200 |
| Manganese (Mn) | 0.6000 | 0.9000 |
| Carbon (C) | - | 0.1300 |
ASME SA-29/SA-29M 12L11 Material Mechanical Properties
ASME SA-29/SA-29M 12L11 steel has many desirable mechanical properties, including high strength, good ductility, and excellent impact resistance. The tensile strength of ASME SA-29/SA-29M 12L11 steel is specified as a minimum of 85,000 psi. This is considered a high strength steel, making it a great choice for applications that require parts that are strong and can withstand high levels of stress.
The mechanical properties of the ASME SA-29/SA-29M 12L11 steel are as follows:
| YieldRp0.2 | ≤ 495 (MPa) |
| TeileRm | ≤ 776 (MPa) |
| ImpactKV/Ku | 21(J) |
| ElongationA | 12% |
| Reduction in cross section on fractureZ | 33% |
| As-Heat-Treated Condition | Solution and Aging, Annealing, Ausaging, Q+T,etc |
| Brinell hardness (HBW) | 134 |
ASME SA-29/SA-29M 12L11 Material Thermal Properties
The thermal performance parameters of the ASME SA-29/SA-29M 12L11 steel are as follows:
| Temperature (°C) | 21 | 669 | 326 |
| Modulus of elasticity (GPa) | - | 551 | - |
| Mean coefficient of thermal expaion ×10-6/(°C) | - | - | 44 |
| Thermal conductivity (W/m·°C) | - | 34.3 | 34.2 |
| Specific thermal capacity (J/kg·°C) | - | 434 | - |
| Specific electrical resistivity (Ω mm²/m) | 0.44 | - | - |
| Deity (kg/dm³) | - | - | 131 |
| Poisson’s coefficient, ν | - | - | 114 |
ASME SA-29/SA-29M 12L11 Material Machining Technology
ASME SA-29/SA-29M 12L11 steel is a high-strength, low-alloy steel carburized. It is one of the primary choices when it comes to carburizing steel. The material is composed of a combination of iron, chromium, vanadium, and molybdenum. It is also a low-cost and easily worked material, making it an ideal choice for a variety of applications.