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Home > Products > Industrial Metal Pipe > ASTM A672 Pipes > A672 GR N75
ASTM A672 Gr N75 EFW Pipe, Electric Fusion Welded Pipes, High-Pressure Steel Pipes, ASTM A672 Pipe Manufacturer, Carbon Steel Welded Pipes
ASTM A672 Gr N75 Electric Fusion Welded (EFW) Pipes are engineered for high-pressure services at moderate temperatures, making them an excellent choice for industries requiring reliable and durable piping solutions. These pipes are manufactured by Kwality Steelage Pvt. Ltd., a leading supplier and exporter based in Mumbai, India, and are widely used in oil, gas, petrochemical, and power generation sectors. ASTM A672 Gr N75 pipes are crafted to meet stringent standards, ensuring superior performance and durability in challenging environments.
ASTM A672 Gr N75 pipes feature a chemical composition that includes manganese and silicon, enhancing their strength and resistance to deformation. The steel grade complies with ASTM A299 specifications and is designed for seamless functionality in high-pressure environments. These pipes are available in sizes ranging from 1/2 inch to 100 inches nominal bore (NB) and come in wall thicknesses of up to 250 mm, accommodating various industrial requirements. They are heat-treated and normalized for optimal mechanical properties, such as a yield strength of 240 MPa and tensile strength ranging from 415 MPa to 585 MPa.
These EFW pipes are suitable for transporting oil, natural gas, and other fluids over long distances, both onshore and offshore. The superior mechanical and thermal properties of ASTM A672 Gr N75 pipes make them ideal for critical applications like refineries, chemical plants, and high-temperature industrial setups. Their robust structure ensures reduced maintenance costs, enhanced safety, and extended service life.
Kwality Steelage Pvt. Ltd. offers these pipes in customized lengths, ranging from 6 meters to 30 meters, with various end types, including plain and beveled ends. Value-added services such as galvanizing, epoxy coating, machining, and heat treatments are available to meet diverse client specifications. Each pipe undergoes rigorous testing, including radiographic examination, ultrasonic testing, and hydrostatic testing, to ensure compliance with international standards such as ASME and API.
To protect against environmental factors, ASTM A672 Gr N75 pipes are packaged in bundles, wooden pallets, or crates, with plastic caps on ends to prevent damage. The company ensures timely delivery through an extensive global distribution network, catering to regions including the Middle East, Asia, North America, and Europe.
With a proven track record as a reliable supplier and exporter, Kwality Steelage Pvt. Ltd. guarantees high-quality ASTM A672 Gr N75 pipes at competitive prices. The company’s commitment to excellence is reflected in its customer-centric approach, stringent quality control measures, and adherence to international standards.
For inquiries or customized solutions, contact Kwality Steelage Pvt. Ltd. and experience unparalleled service for your piping needs.
| Specification | Details |
| Size Range | 1/2 inch to 100 inches NB |
| Schedule Thickness Range | SCH 20, SCH 40, SCH 60, SCH 80, SCH 160, XS, XXS, All Schedules |
| Applications | Oil Refineries, Petrochemical Plants, Power Stations, Offshore Platforms, Fluid and Gas Transmission |
| Pipe Type | Electric Fusion Welded (EFW) |
| Pipe & Tube Form | Round, Square, Rectangular, Custom Configurations |
| Manufacturing Process | Hot Rolled, Normalized, Thermomechanical Rolled, Quenched and Tempered |
| Material Composition | Carbon Steel with Manganese and Silicon |
| End Type | Plain, Beveled, Coupled |
| Length Options | Single Random, Double Random, or Custom Lengths (up to 14 meters) |
| End Protection | Plastic Caps, Beveled Edge Protectors |
| Coating Options | Epoxy Coating, 3LPE Coating, Black Paint, Anti-Corrosion Treatment |
| Tolerance Type | Outside Diameter (OD) | Wall Thickness (WT) |
| Size Tolerance | ±1% of specified OD | +12.5% / -10% of specified WT |
| Outside Diameter (mm) | Wall Thickness (mm) | Nominal Size (in.) | Schedule | Weight (Kg/m) |
| 21.34 | 3.73 | 1/2 | SCH 80 | 1.65 |
| 42.16 | 6.35 | 1-1/4 | SCH 160 | 5.69 |
| 88.90 | 11.13 | 3 | SCH 160 | 21.67 |
| 168.28 | 18.26 | 6 | SCH 160 | 68.59 |
| 323.85 | 25.40 | 12 | SCH 120 | 147.20 |
Note: Additional sizes and weights available upon request.
| Grade | Yield Strength (Min) | Tensile Strength (Min) | Elongation (%) |
| N75 | 240 MPa | 415 MPa – 585 MPa | 21-25% |
| Element | Maximum % Composition |
| Carbon (C) | 0.25% |
| Manganese (Mn) | 0.98% |
| Phosphorus (P) | 0.035% |
| Sulfur (S) | 0.035% |
| Silicon (Si) | 0.45% |
| Pipe Type | Price Range (USD) |
| ASTM A672 Gr N75 Pipes | $600 – $1,500 |
For optimal performance, ASTM A672 Gr N75 pipes require careful welding and heat treatment. Post-Weld Heat Treatment (PWHT) is recommended for pipes with wall thicknesses exceeding 12 mm to ensure mechanical stability. Preheating to 150°C is necessary for thinner sections. These processes help mitigate residual stresses, enhancing the pipe’s durability in high-pressure applications.
| Feature | N75 | L70 |
| Chemical Content | Higher Manganese & Silicon | Lower Alloy Content |
| Applications | High-Pressure, High Stress | Moderate Pressure, Low Stress |
| Tensile Strength | 415 MPa – 585 MPa | 450 MPa – 620 MPa |
Looking for reliable and durable ASTM A672 Gr N75 EFW Pipes? Contact Kwality Steelage Pvt. Ltd. today for high-quality pipes tailored to your specifications. Ensure safety and performance with our globally trusted piping solutions. Get a quote now!
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We Kwality Steelage Pvt. Ltd. are professionally organized firm engaged in exporting and supplying Stainless Steel, Carbon Steel, Alloy Steel, Nickel Alloys, Duplex, Super duplex and other Ferrous & Non-Ferrous Metal products such as Pipes, tubes, Pipe, Tubes, Pipe Fittings, Piping Spools, LR Bends, Sheets, Plates, Rods, Flanges, Fasteners, Gaskets.
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