ASTM A106 Grade B material specification properties
ASTM A106 Grade B introduction
ASTM A106 is a set of standards for seamless carbon steel tubing developed by the American Society for Testing and Materials (ASTM) for high-temperature service. The standard covers two types of steel pipe:
- Class A: Suitable for low temperature (-29°C) to high temperature (454°C) applications.
- Class B: Suitable for high temperature (427°C) to higher temperature (566°C) applications.
ASTM A106 Grade B seamless steel pipe has the following characteristics:
- Good mechanical properties including tensile strength, yield strength and elongation.
- Good high temperature resistance.
- Good welding performance.
ASTM A106 Grade B General properties
The General properties requirements of ASTM A106 Grade B are as follows:
| Property | Temperature | Value |
|---|---|---|
| Elongation A50 | 23.0 °C | Elongation A50 of 16.5 - 30 % |
| Tensile strength | 23.0 °C | Tensile strength of 415 MPa |
| Yield strength | 23.0 °C | Yield strength of 240 MPa |
ASTM A106 Grade B Chemical composition
The Chemical composition requirements of ASTM A106 Grade B are as follows:
| Property | Value |
|---|---|
| Carbon | Carbon of 0.3 % |
| Chromium | Chromium of 0.4 % |
| Copper | Copper of 0.4 % |
| Manganese | Manganese of 0.29 - 1.06 % |
| Molybdenum | Molybdenum of 0.15 % |
| Nickel | Nickel of 0.4 % |
| Phosphorus | Phosphorus of 0.04 % |
| Silicon | Silicon of 0.1 % |
| Sulfur | Sulfur of 0.035 % |
| Vanadium | Vanadium of 0.08 % |
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