Haihao Group recently fulfilled an order for high-quality ASTM A333 Gr.6 seamless steel pipes, specifically tailored to meet the low-temperature and notch toughness requirements for various applications. This product order underscores Haihao Group’s commitment to delivering reliable piping solutions that adhere to stringent international standards.
ASTM A333 Gr.6 Seamless Steel Pipes
ASTM A333 Gr.6 Seamless Steel Pipe Overview
Material Standard: ASTM A333 Gr.6 specifies seamless and welded steel pipe requirements for low-temperature service and other applications requiring notch toughness.
Chemical Composition of ASTM A333 Gr.6 Seamless Steel Pipe:
Carbon: ≤ 0.30%，Silicon: ≥ 0.10%，Manganese: 0.29% – 1.06%，Phosphorus: ≤ 0.025%，Sulfur: ≤ 0.025%，Chromium: ≤ 0.030%，Nickel: ≤ 0.040%，Molybdenum: ≤ 0.12%，Copper: ≤ 0.40%，Vanadium: ≤ 0.08%，Niobium: ≤ 0.02%
Control of these chemical components is critical to ensuring the quality of the pipes. The ASTM A333 Gr.6 standard specifies strict requirements for chemical composition, ensuring the material possesses excellent strength and toughness.
Mechanical Properties as per ASTM A333 Gr.6 Standard:
Tensile Strength: Minimum 415 MPa，Yield Strength: Minimum 240 MPa，Elongation: Minimum 30%，Charpy V-notch Impact Testing at -45°C
These requirements guarantee the pipes’ suitability for use in low-temperature environments, providing sufficient strength and toughness.
Product Specifications:
Outer Diameter: 21.3mm – 762mm
Wall Thickness: 2.0mm – 140mm
Production Methods: Hot rolled, cold drawn, hot expanded.
Delivery Condition: Heat treated.
Heat Treatment Process for Finished Pipes:
Normalizing Process: Heating to 900°C – 930°C, holding for 10 – 20 minutes, followed by air cooling.
Surface Condition:
All surfaces must be free from oxidation, contamination, oil, paint, or any other foreign substances that could affect test results. Cleaning methods must not damage the base metal or alter the surface roughness.
Rough surfaces or deep scratches can interfere with non-destructive testing signals.
The supply of 14″ A333 Gr.6 seamless pipes to the Vietnamese customer highlights Haihao Group’s capability to meet demanding specifications and ensure product reliability in critical applications. With a focus on quality assurance and adherence to international standards, Haihao Group continues to be a preferred supplier of choice for customers seeking durable and high-performance piping solutions. For inquiries or further information about our product offerings, please contact us.
