A671 Gr CK75

ASTM A671 Gr CK75 Pipe, EFW Steel Pipe, Low-Temperature Pipes, CK75 Alloy Steel Pipes, Atmospheric Pressure Pipes, Kwality Steelage CK75 Pipes, High-Performance EFW Pipe”

Kwality Steelage Pvt. Ltd., based in Mumbai, India, is a distinguished manufacturer and supplier of ASTM A671 Gr CK75 Pipes. Designed to meet the highest standards of performance, these electric fusion welded (EFW) pipes are fabricated using high-grade carbon-manganese-silicon steel to ensure superior strength and durability. With a focus on atmospheric and low-temperature applications, ASTM A671 Gr CK75 pipes are widely utilized in industries like oil, gas, and petrochemicals, ensuring efficient operations even under challenging conditions. Available in sizes ranging from 1 to 3 inches and lengths up to 30 meters, these pipes are highly customizable, making them suitable for a variety of industrial needs.

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A671 Gr CK75

The technical specifications of ASTM A671 Gr CK75 pipes are crafted to handle high-pressure services at both ambient and sub-zero temperatures. With thickness options starting from 6 mm, these pipes are engineered for demanding applications in refineries, boilers, and power plants. Manufactured following stringent ASTM standards, the pipes undergo rigorous quality checks, including hydrostatic and radiographic testing, to ensure compliance with industry standards. Additionally, these pipes are available with mill finishes or polished surfaces and are packaged securely using shrink wrapping, jute wrapping, or wooden boxes for safe transportation.

ASTM A671 Gr CK75 pipes offer outstanding mechanical properties, such as a minimum tensile strength of 485 MPa and a yield strength of 260 MPa. The elongation properties range between 20% and 30%, ensuring flexibility during installation and use. The pipes’ chemical composition, including up to 0.30% carbon and 1.20% manganese, enhances their structural integrity, making them ideal for high-pressure and low-temperature operations. These pipes undergo heat treatment processes like normalization and stress-relieving to further improve their mechanical performance and durability.

The dimensional tolerances of these pipes are meticulously maintained, with a permissible variation of ±0.5% in outer diameter and ±12.5% in wall thickness. These tolerances ensure the reliability and consistency of the pipes during high-stress operations. The pipes are available in unit lengths of 3, 6, 12, and up to 30 meters, catering to diverse industrial requirements. Their end finishes, including plain, beveled, or threaded ends, make them suitable for seamless integration into existing systems.

The versatility of ASTM A671 Gr CK75 pipes makes them indispensable in various industries. These pipes are extensively used in refineries, chemical plants, and marine applications, where their ability to withstand extreme temperatures and high pressure is critical. Their robust construction and corrosion resistance make them suitable for fluid transmission systems, boilers, and power generation facilities. Additionally, their adaptability and reliability make them a preferred choice for offshore and onshore oil and gas projects.

To ensure the safe delivery of ASTM A671 Gr CK75 pipes, Kwality Steelage Pvt. Ltd. employs secure packaging methods tailored to customer requirements. Pipes are packed in shrink wrapping, bubble wrapping, or wooden boxes, with detailed labeling for easy identification. The company’s commitment to quality extends beyond production to include efficient and timely delivery, ensuring customer satisfaction across domestic and international markets.

For industries looking for reliable, high-performance piping solutions, ASTM A671 Gr CK75 pipes by Kwality Steelage Pvt. Ltd. stand out as the optimal choice. Contact us today to learn more about how our products can meet your industrial needs.

Specification Chart for ASTM A671 Gr CK75 Alloy Steel Pipes for Atmospheric and Low-Temperature Applications

Specification Details
Size Range 16 inches (400 mm) and above
Wall Thickness Range 6 mm (1/4 inch) and greater
Applications Oil Refineries, Petrochemical Industries, Power Plants, Marine, Boilers, Pressure Vessels
Pipe Type Electric Fusion Welded (EFW)
Pipe & Tube Form Round
Manufacturing Process EFW with filler metal, Heat Treated (Normalized, Stress Relieved, or Quenched & Tempered)
Material Composition Carbon-Manganese-Silicon Alloy Steel
End Type Plain, Beveled, Threaded
Length Options 3m, 6m, 9m, 18m, Customized Lengths
Packaging Options Shrink Wrapping, Jute Wrapping, Bubble Wrapping, Wooden Boxes
Surface Finish Mill Finished
Outside Coating Anti-Corrosion Oil

Dimensional Tolerances for ASTM A671 Gr CK75 Pipes

Tolerance Type Outside Diameter (OD) Wall Thickness (WT)
Size Tolerance ±0.5% of specified OD +12.5% / -10% of specified WT

Mechanical Properties of ASTM A671 Gr CK75 Pipes

Grade Yield Strength (Min) Tensile Strength (Min) Elongation (%)
CK75 240 MPa 450 MPa 20-30

Chemical Composition of ASTM A671 Gr CK75 Pipes

Element Maximum % Composition
Carbon (C) 0.30%
Manganese (Mn) 0.29-1.06%
Phosphorus (P) 0.035%
Sulfur (S) 0.035%
Silicon (Si) 0.15-0.40%

Price Range (per Metric Ton)

Pipe Type Price Range (USD)
ASTM A671 Gr CK75 EFW Pipes $800 – $1,800

Welding and Heat Treatment for ASTM A671 Gr CK75 Pipes

Welding ASTM A671 Gr CK75 pipes demands precise handling. Post-Weld Heat Treatment (PWHT) is recommended for pipes exceeding 13 mm thickness to maintain mechanical properties and avoid stress cracking. For thinner sections, preheating to 120°C suffices. Normalized and tempered processes ensure enhanced ductility and toughness, particularly for low-temperature applications.

Looking for high-quality ASTM A671 Gr CK75 Pipes? Contact Kwality Steelage Pvt. Ltd. today for customized piping solutions tailored to your industrial needs. Ensure durability, efficiency, and compliance with international standards. Request a quote now!