ASME SA-29/SA-29M Grade 44L19 Introduce
The ASME SA-29/SA-29M Grade 44L19 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:1121°C - 1221°C
Application:General requirements for hot working and cold finishing carbon steel and alloy steel bars
ASME SA-29/SA-29M Grade 44L19 Material Chemical Composition
The chemical composition of the ASME SA-29/SA-29M Grade 44L19 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) | 0.4500 | 0.6000 |
| Manganese (Mn) | 0.4500 | 0.6500 |
| Copper (Cu) | - | 0.3500 |
| Chromium (Cr) | - | 0.2000 |
| Carbon (C) | 0.1800 | 0.2300 |
ASME SA-29/SA-29M Grade 44L19 Material Mechanical Properties
ASME SA-29/SA-29M Grade 44L19 steel has many desirable mechanical properties, including high strength, good ductility, and excellent impact resistance. The tensile strength of ASME SA-29/SA-29M Grade 44L19 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 Grade 44L19 steel are as follows:
| YieldRp0.2 | ≤ 655 (MPa) |
| TeileRm | ≤ 937 (MPa) |
| ImpactKV/Ku | 31(J) |
| ElongationA | 41% |
| Reduction in cross section on fractureZ | 44% |
| As-Heat-Treated Condition | Solution and Aging, Annealing, Ausaging, Q+T,etc |
| Brinell hardness (HBW) | 113 |
ASME SA-29/SA-29M Grade 44L19 Material Thermal Properties
The thermal performance parameters of the ASME SA-29/SA-29M Grade 44L19 steel are as follows:
| Temperature (°C) | 14 | 448 | 888 |
| Modulus of elasticity (GPa) | - | 227 | - |
| Mean coefficient of thermal expaion ×10-6/(°C) | - | - | 23 |
| Thermal conductivity (W/m·°C) | - | 24.3 | 21.2 |
| Specific thermal capacity (J/kg·°C) | - | 111 | - |
| Specific electrical resistivity (Ω mm²/m) | 0.31 | - | - |
| Deity (kg/dm³) | - | - | 424 |
| Poisson’s coefficient, ν | - | - | 321 |
ASME SA-29/SA-29M Grade 44L19 Material Machining Technology
ASME SA-29/SA-29M Grade 44L19 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.