A671 Gr CJ108

Premium ASTM A671 Gr CJ108 EFW Pipes: High-Quality Alloy Steel Solutions

Kwality Steelage Pvt Ltd, a trusted manufacturer, supplier, and exporter based in Mumbai, India, offers ASTM A671 Gr CJ108 Electric Fusion Welded (EFW) Pipes, engineered for demanding industrial applications. These pipes, crafted from quenched and tempered alloy steel as per ASTM A517 standards, provide exceptional durability, strength, and reliability. Designed for low-temperature and atmospheric applications, they cater to industries such as petrochemicals, oil and gas, power plants, and marine engineering with unparalleled efficiency.

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A671 Gr CJ108

ASTM A671 Gr CJ108 Pipes are available in versatile sizes, lengths, and finishes to meet diverse project requirements. With diameters ranging from ½ inch to >3 inches, lengths of 3 meters, 6 meters, and 12 meters, and customizable thicknesses, these pipes offer flexibility for various use cases. The surface finishes include mill-finished, sand-blasted, brushed, anodized, and polished, with options for black and other coatings. Each pipe undergoes rigorous quality checks, including radiographic and pressure testing, ensuring dimensional accuracy and reliability.

Made from high-quality alloy steel, these pipes boast superior mechanical and chemical properties. They have a tensile strength of 515-655 MPa, yield strength of at least 240 MPa, and elongation rates of 21-25%, making them ideal for high-stress and high-pressure applications. The chemical composition, with controlled amounts of carbon, manganese, and silicon, further enhances their strength, ductility, and corrosion resistance, ensuring a long service life.

Widely used in petrochemical plants, boiler systems, marine engineering, and structural applications, ASTM A671 Gr CJ108 Pipes deliver exceptional performance under extreme conditions. Their ability to resist low-temperature cracking and maintain strength under pressure makes them a preferred choice across industries. Whether for fluid transportation, saltwater applications, or structural support, these pipes stand out for their unmatched performance and reliability.

Kwality Steelage ensures safe and efficient delivery of its products, offering a range of packaging options, including shrink wrapping, jute wrapping, bubble wrapping, and wooden boxes. Pipes are delivered with plastic end caps and optional coatings like epoxy or 3LPE for added protection. With the flexibility of customization, Kwality Steelage tailors its products to meet the unique needs of every project.

Comprehensive Specification and Details for ASTM A671 Gr CJ108 Alloy Steel Pipes

Specification Details
Size Range ½ inch to >3 inch
Length Options 3m, 6m, 12m, 24m, or custom as required
Surface Finish Mill Finished, Anodized, Brushed, Sand Blasted, Finished Polished
Pipe Type Electric Fusion Welded (EFW)
Material Composition Alloy Steel, Quenched and Tempered
Applications Oil Refineries, Petrochemical Industries, Boilers, Chemical Plants, Marine Engineering
Packaging Options Shrink Wrapping, Jute Wrapping, Wooden Boxes
Color Black

Dimensional Tolerances for ASTM A671 Gr CJ108 Pipes

Tolerance Type Outside Diameter (OD) Wall Thickness (WT)
Size Tolerance +1% / -1% of specified OD +12.5% / -10% of specified WT

These tolerances ensure the pipes meet stringent industrial requirements for precise dimensions and uniformity, reducing installation issues and improving performance.

Mechanical and Chemical Properties of ASTM A671 Gr CJ108 Pipes

Mechanical Properties:

  • Tensile Strength (Min): 515-655 MPa
  • Yield Strength (Min): 240 MPa
  • Elongation: 21-25%

Chemical Composition:

Element Maximum % Composition
Carbon (C) 0.05-0.15%
Manganese (Mn) 0.30-0.80%
Phosphorus (P) 0.025%
Sulfur (S) 0.025%
Silicon (Si) 0.10-0.50%
Chromium (Cr) 0.44-0.65%
Molybdenum (Mo) 0.44-0.65%

The combination of these properties ensures the pipes maintain their integrity and strength under challenging conditions, making them suitable for high-stress and low-temperature applications.

Welding and Heat Treatment for ASTM A671 Gr CJ108 Pipes

To ensure robust performance and reliable connections, these pipes are subjected to specialized heat treatment processes:

  • Post-Weld Heat Treatment (PWHT): Recommended for pipes with thicknesses exceeding 13 mm to mitigate residual stresses and enhance mechanical stability.
  • Preheating: For thinner sections, preheating to 120°C suffices to prevent hardness-related issues during welding.

Price Range and Applications

Pipe Type Price Range (INR per Kilogram)
ASTM A671 Gr CJ108 EFW Pipes ₹ 400 – ₹ 1,200

Price Range (per Metric Ton)

Pipe Type Price Range (USD)
ASTM A671 Gr CJ107 EFW Pipes $800–$1,800

Welding and Heat Treatment for ASTM A671 Gr CJ107 Pipes

The pipes undergo electric fusion welding and heat treatments like quenching and tempering to enhance mechanical strength and durability. Post-Weld Heat Treatment (PWHT) is recommended for pipes exceeding 13 mm in thickness to ensure dimensional stability and reduce stress cracking.

Differences Between ASTM A671 Gr CJ107 and CJ106 Pipes

Feature CJ107 CJ106
Tensile Strength (Min) 485–620 MPa 485 MPa
Application Focus Low Temperature and High Pressure Atmospheric Pressure and Corrosion Resistance

Contact Kwality Steelage today for high-quality ASTM A671 Gr CJ108 EFW Pipes tailored to your industrial needs. Request a quote now and ensure superior performance for your projects!