ASTM A423 Grade 3 Low Alloy Steel Pipe Products
ASTM A423 Grade 3 Low Alloy Steel Pipe is a kind of atmospheric corrosion resistant pipe, which is widely used in industrial equipment and piping systems, especially suitable for high temperature and corrosive environments. The standard covers the manufacture of welded and seamless steel pipes, ensuring its reliability and durability under complex working conditions.
Main features:
1. Atmospheric corrosion resistance: Contains copper elements, suitable for humid and corrosive environments.
2. High strength and ductility: Maintain strength while having good ductility, adapt to pressure and temperature changes.
3. Weldability and machinability: Excellent welding processing performance, suitable for complex industrial designs.
Chemical composition:
ASTM A423 Grade 3 Steel Pipe Chemical Composition | |||||
C | Mn | Si | S | P | Cu |
≤ 0.20 | 0.30 - 0.65 | 0.10 - 0.35 | ≤ 0.050 | ≤ 0.040 | ≤ 0.040 |
Mechanical properties:
ASTM A423 Grade 3 Steel Pipe Mechanical Properties | |||
Yield Strength (MPa) | Tensile Strength (MPa) | Elongation (%) | Impact toughness |
≥ 275 | 415 - 550 | ≥ 30 | Good, suitable for low temperature environment |
Typical applications:
1. Boilers and heat exchangers: Anti-oxidation and high temperature resistance, ensuring the reliability of equipment at high temperatures.
2. Industrial pipelines: Suitable for outdoor oil, gas and chemical pipelines, extending life and reducing maintenance.
3. Power plant equipment: Used for high temperature and high pressure pipelines to ensure long-term stable operation of equipment.
