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A516/A516M Gr60
keyword A516/A516M Gr60 Category Steel pipe material Related products Get a quoteComprehensive analysis of A516/A516M Gr60 material spiral steel pipe
1、 Material characteristics
Chemical composition
Carbon (C): ≤ 0.25% (optimized weldability and strength balance)
Manganese (Mn): 0.79%~1.30% (improves thermal processing performance and toughness)
Phosphorus (P) and sulfur (S): both ≤ 0.035% (reducing the risk of hot cracking)
Silicon (Si): 0.15%~0.40% (enhanced deoxidation ability)
Mechanical properties
Tensile strength: 485~620 MPa (meets the requirements of medium and high pressure pipelines)
Yield strength: ≥ 415 MPa (higher when thickness ≤ 50mm)
Elongation rate: ≥ 20% (gauge length 200mm)
Low temperature toughness:- Good impact toughness at 46 ° C, suitable for cold environments
2、 Key points of spiral steel pipe production process
Raw material specifications
Steel plate thickness: 5-25mm (within the range of conventional spiral steel pipe wall thickness)
Outer diameter of steel pipe: 219~3620mm (suitable for conveying pipelines and mechanical structures)
Forming and Welding
Spiral winding: forming angle 50 °~75 °, weld seam gap ≤ 3mm
Welding process: Double sided submerged arc welding (DSAW) or high-frequency resistance welding (ERW), using low hydrogen welding materials
Quality inspection
Non destructive testing: 100% ultrasonic testing (UT) or X-ray testing (RT)
Hydrostatic test: pressure ≥ 1.5 times the design pressure, holding pressure ≥ 10 seconds
3、 Application scenarios and limitations
Applicable fields
Petrochemical industry: supporting pipelines for pressure vessels such as oil storage tanks and reaction vessels
Energy transmission: natural gas, oil pipelines (design pressure ≤ 6.4 MPa)
Industrial equipment: high-temperature and pressure bearing components such as boiler steam drums and thermal pipelines
Usage restrictions
Temperature range: Recommended -46 ° C~400 ° C, creep strength needs to be evaluated at high temperatures
Medium limitation: High sulfur (H ₂ S>20ppm) environment requires anti-corrosion treatment
4、 Execution standards and suppliers
Core standards
Material standard: ASTM A516/A516M (steel for American pressure vessels)
Steel pipe standards: API 5L (line pipe), GB/T 9711 (oil and gas transmission pipe)
Supply services
Through strict process control and standardized testing, A516/A516M Gr60 spiral steel pipes can meet the needs of medium and high voltage energy transmission and low-temperature industrial scenarios, with a focus on welding quality and anti-corrosion performance.
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