ASME SA-29/SA-29M SA-29 Grade 9255 Introduce
ASME SA-29/SA-29M SA-29 Grade 9255 is an excellent choice for many different types of applications due to its combination of strength, formability, and weldability. It is a good choice for automotive components, tool steel, and structural steel. It is also a good option for applications where the material is subject to high levels of stress and strain. Overall, it is a great choice due to its cost and availability.
Smelting temperature:1637°C - 1716°C
Application:General requirements for hot working and cold finishing carbon steel and alloy steel bars
ASME SA-29/SA-29M SA-29 Grade 9255 Material Chemical Composition
The chemical composition of the ASME SA-29/SA-29M SA-29 Grade 9255 steel are as follows:
| Element | Min | Max |
|---|---|---|
| Silicon (Si) | 1.8000 | 2.2000 |
| Sulfur (S) | - | 0.0400 |
| PhOsphorus (P) | - | 0.0350 |
| Nickel (Ni) | - | 0.2500 |
| Molybdenum (Mo) | - | 0.0600 |
| Manganese (Mn) | 0.7000 | 0.9500 |
| Copper (Cu) | - | 0.3500 |
| Chromium (Cr) | - | 0.2000 |
| Carbon (C) | 0.5100 | 0.5900 |
ASME SA-29/SA-29M SA-29 Grade 9255 Material Mechanical Properties
The ductility of ASME SA-29/SA-29M SA-29 Grade 9255 steel is also rated very highly. The steel exhibits good plasticity and can be bent, twisted, and stretched without failure. This makes it an ideal choice for applications that require parts to be formed and shaped. The impact resistance of ASME SA-29/SA-29M SA-29 Grade 9255 steel is also noteworthy. The steel is capable of absorbing a high amount of energy before failure, making it an ideal choice for applications that require resistance to shock and vibration.
The mechanical properties of the ASME SA-29/SA-29M SA-29 Grade 9255 steel are as follows:
| YieldRp0.2 | ≤ 231 (MPa) |
| TeileRm | ≤ 123 (MPa) |
| ImpactKV/Ku | 11(J) |
| ElongationA | 23% |
| Reduction in cross section on fractureZ | 33% |
| As-Heat-Treated Condition | Solution and Aging, Annealing, Ausaging, Q+T,etc |
| Brinell hardness (HBW) | 432 |
ASME SA-29/SA-29M SA-29 Grade 9255 Material Thermal Properties
The thermal performance parameters of the ASME SA-29/SA-29M SA-29 Grade 9255 steel are as follows:
| Temperature (°C) | 44 | 718 | 523 |
| Modulus of elasticity (GPa) | - | 627 | - |
| Mean coefficient of thermal expaion ×10-6/(°C) | - | - | 42 |
| Thermal conductivity (W/m·°C) | - | 22.3 | 23.2 |
| Specific thermal capacity (J/kg·°C) | - | 422 | - |
| Specific electrical resistivity (Ω mm²/m) | 0.21 | - | - |
| Deity (kg/dm³) | - | - | 414 |
| Poisson’s coefficient, ν | - | - | 142 |
ASME SA-29/SA-29M SA-29 Grade 9255 Material Machining Technology
ASME SA-29/SA-29M SA-29 Grade 9255 steel is a high-strength and low-alloy steel which is known for its excellent weldability and toughness. The machining process of ASME SA-29/SA-29M SA-29 Grade 9255 steel is a critical part of achieving the desired outcome, thus it is important to understand the parameters that need to be managed in order to produce the desired results. This includes the selection of appropriate cutting tools, the selection of an appropriate cutting speed, the selection of appropriate feed rates and the selection of an appropriate depth of cut. Additionally, it is also important to take into account the material's hardness, ductility and wear resistance when choosing tools. With correct machining parameters and suitable cutting tools, ASME SA-29/SA-29M SA-29 Grade 9255 steel can be reliably machined to achieve a high-quality result.