Technical Specifications

• Material Grade: ASTM A53, ASTM A252, ASTM A500, API 5L (Grades A, B, X42–X80), A36, S235, S355, 4130, 4140, 4340, A106 Gr.A/B, A333, A500, St52, AH36, 1020, 1018, 1010, S275JR, A53, 1045, SS400, etc.

• Manufacturing Methods: ERW, SSAW, LSAW

• Size Range:

  • Outside Diameter (OD): 1/2" – 60" (21.3mm – 1524mm)

  • Wall Thickness: SCH10 – SCH160 or 1.5mm – 50mm

  • Length: 6m, 12m, or custom cut-to-length

• Surface Treatment: Black varnished, galvanized, 3LPE/3LPP coating, anti-rust oil

• End Finish: Plain end, beveled end, threaded with coupling

• Tolerances: OD ±1%, wall thickness ±10%, length ±50mm

• Standards Compliance: ASTM, API, EN, JIS, DIN

Mechanical & Performance Properties

• Tensile Strength: 400–600 MPa (depending on grade)

• Yield Strength: ≥ 245 MPa for standard grades

• Elongation: 20%–30%

• Hardness: ≤ 90 HRB (varies with treatment)

• Impact Resistance: -20°C to -60°C for low-temperature service

• Corrosion Resistance: Enhanced with galvanization or epoxy/polyethylene coating

• Pressure Rating: Suitable for moderate to high-pressure applications depending on wall thickness and grade

• Weld Quality: 100% Ultrasonic Testing (UT) or Radiographic Testing (RT) available

• Service Life: 20–50 years with proper maintenance and coating

Production Process

• Electric resistance-welded pipes & tubes

• Hot electric resistance-welded pipes & tubes

• Arc-welded pipes & tubes (SAWH pipe (by Spiral process))

Product Real Shot

Packaging and Shipping

Applications & Advantages

Applications:

1. Oil & Gas Transmission: Pipeline systems for crude oil, refined petroleum products, and natural gas.

2. Water & Sewage Systems: Municipal water supply, wastewater disposal, and industrial water lines.

3. Structural Engineering: Steel frameworks, bridges, scaffolding, and piling for foundation work.

4. Mechanical Fabrication: Machinery parts, automotive components, and shipbuilding.

5. Energy Projects: Offshore platforms, power plants, and renewable energy infrastructure.

Advantages:

• High strength-to-weight ratio for structural stability

• Cost-effective compared to seamless pipes for large diameters

• Flexible size customization for different engineering requirements

• Strong weld seam integrity after NDT inspection

• Wide availability of coatings for corrosion and abrasion protection

FAQ

Q1: What product information must I provide before making a purchase?
A: Please provide the grade, width, thickness, surface treatment requirements, and the quantities you need.

Q2: What about product pricing information?
A: Prices may vary due to fluctuations in raw material costs.

Q3: Is it possible to send samples?
A: Yes, we offer free samples with express shipping worldwide.

Q4: Do you offer a service for customized products?
A: Yes, we can supply according to your specific requirements.

Q5: Can I visit you in person?
A: Customers from all over the world are welcome to meet with us.

Q6: Can you assist me in importing steel products for the first time?
A: Yes, we can provide support through our experienced shipping agents.