SA210 high-pressure alloy tube is a seamless medium-carbon steel tube used for boiler tubes and boiler flue tubes, mainly applied to components such as safety ends, domes, support tubes, and superheater tubes. This product conforms to ASTM A210 and ASME SA210 standards, developed by the American Society for Testing and Materials (ASTM) and the American Society of Mechanical Engineers (ASME).
chemical composition of SA 210 pipe
| Element | A210 Grade C (%) | A210 Grade A-1 (%) | Notes |
|---|---|---|---|
| C | ≤0.35 | ≤0.27 | Carbon content is strictly controlled to balance strength and weldability. |
| Si | ≥0.10 | ≥0.10 | Silicon serves as a deoxidizer and enhances strength. |
| Mn | 0.29 to 1.06 | ≤0.93 | Manganese improves hardenability; in Grade C, up to 1.35% Mn is permitted if C is reduced by 0.01% per 0.06% Mn increase. |
| P | ≤0.035 | ≤0.035 | Phosphorus limit ensures ductility and toughness at low temperatures. |
| S | ≤0.035 | ≤0.035 | Sulfur is tightly controlled to prevent hot shortness during rolling. |
| Cr | Not specified | Not specified | Chromium is not required; absence avoids alloying cost and embrittlement risk. |
| Mo | Not specified | Not specified | Molybdenum is excluded to maintain carbon-manganese steel classification. |
| Cu | Not specified | Not specified | Copper is not regulated; typically remains as residual element. |
| Ni | Not specified | Not specified | Nickel is not added; this is a non-alloy carbon steel. |
| V | Not specified | Not specified | Vanadium is not included; no microalloying is applied. |
Mechanical Properties of ASTM A210 / ASME SA210 Seamless Steel Tubes
| Grade | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) |
|---|---|---|---|
| A1 | ≥415 | ≥255 | ≥30 |
| C | ≥485 | ≥275 | ≥30 |
Performance Characteristics
1. High Strength: SA210 seamless steel pipe possesses high strength, capable of withstanding significant pressure and load-bearing capacity.
2. Corrosion Resistance: The surface coating of this steel pipe exhibits excellent corrosion resistance, effectively resisting corrosion from acids, alkalis, salts, and other chemical substances.
3. High Temperature Resistance: SA210 seamless steel pipe demonstrates high high-temperature resistance, maintaining stable performance even in high-temperature environments.
4. Low Temperature Resistance: This steel pipe maintains good performance even in low-temperature environments, making it suitable for use in cold regions.
5. Excellent Connection Performance: SA210 seamless steel pipe utilizes advanced connection technology, enabling quick and easy connections and improving the reliability of the pipeline system.
6. Environmental Protection: The materials used in this steel pipe are all environmentally friendly, causing no pollution or harm to the environment or human health.
Applications
SA210 seamless steel pipes are widely used in petroleum, chemical, natural gas, power, and construction industries. Specific applications include:
1. Petrochemical: Used in the manufacture of petrochemical equipment, such as reactors, heat exchangers, and separators.
2. Natural Gas: Used as natural gas transmission pipelines, possessing high strength and corrosion resistance to ensure the safe transportation of natural gas.
3. Power: Used in the manufacture of power equipment, such as boilers and steam turbines, capable of withstanding high temperatures and pressures.
4. Construction: Used as a building structural material, capable of withstanding significant pressure and load-bearing capacity, while also exhibiting good corrosion resistance and durability.