ASTM A519 4130 Seamless Steel Pipe is a specification standard for alloy steel pipes, commonly used in the manufacturing of pipes and fittings for high-temperature and high-pressure environments. This type of pipe is typically employed in industrial sectors, particularly in the petroleum and natural gas industries, as well as in aerospace and automotive industries. 4130 alloy steel pipes exhibit good strength and corrosion resistance, suitable for various engineering requirements.
Chemical Composition (Typical):
- Carbon (C): 0.28-0.33%
- Manganese (Mn): 0.40-1.10%
- Phosphorus (P): Maximum 0.035%
- Sulfur (S): Maximum 0.040%
- Silicon (Si): 0.15-0.35%
- Chromium (Cr): 0.80-1.10%
- Molybdenum (Mo): 0.15-0.25%
Mechanical Properties (Typical):
- Yield Strength: Approximately 75,000 psi (approximately 515 MPa)
- Tensile Strength: Approximately 95,000 psi (approximately 655 MPa)
- Elongation: Approximately 25%
Wall Thickness Tolerance:
According to ASTM A519 standard, the wall thickness tolerance should meet the following requirements:
- For pipes with thickness less than 2.5mm, the tolerance is ±12.5%.
- For pipes with thickness 2.5mm and above, the tolerance is ±10%.
Dimensional Tolerance:
According to ASTM A519 standard, the dimensional tolerance should meet the following requirements:
- The outer diameter tolerance is typically ±1% of the pipe diameter.
- The inner diameter tolerance is typically -0% to +10% of the pipe diameter.
- The length tolerance is typically ±3mm of the pipe length.
Brand: Yantai Baosteel