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Home > Products > Industrial Metal Pipe > ASTM A691 Pipes > ASTM A691 GR 5 CR
ASTM A691 GR 5 CR, Alloy Steel Pipes, High-Pressure Steel Pipes, Corrosion-Resistant Alloy Pipes, Pressure Vessel Grade Pipes, EFW Steel Pipes, ASTM A691 Pipes Manufacturer, Industrial Alloy Pipes, Kwality Steelage Pipes
ASTM A691 GR 5 CR is a high-performance alloy steel pipe engineered for applications requiring exceptional resistance to extreme temperatures, pressure, and corrosion. Manufactured by Kwality Steelage Pvt. Ltd., a globally recognized supplier and exporter based in Mumbai, India, these pipes are fabricated using pressure vessel-grade plates and electric fusion welding (EFW) processes. Designed to meet the rigorous demands of industries such as power generation, petrochemical plants, and offshore oil drilling, ASTM A691 GR 5 CR pipes deliver outstanding mechanical strength, thermal stability, and long-lasting performance.
These pipes are available in a nominal bore (NB) range of 1/2 inch to 36 inches, with wall thicknesses compliant with schedules SCH 20, SCH 40, SCH 80, SCH 120, SCH 160, and XXS. The material composition features 5% chromium and 0.5% molybdenum, offering enhanced oxidation resistance and high-temperature endurance. Supplementary elements such as carbon, manganese, silicon, phosphorus, and sulfur provide excellent weldability and toughness, making these pipes ideal for challenging applications in refineries, chemical plants, and structural systems.
ASTM A691 GR 5 CR pipes exhibit superior mechanical properties, including a minimum yield strength of 310 MPa and tensile strength ranging from 515 MPa to 690 MPa. With dimensional tolerances maintained at ±1% for the outside diameter and +12.5%/-10% for wall thickness, these pipes meet stringent international standards. Customizable options such as plain, beveled, or threaded ends, along with surface finishes like black painting, galvanized coatings, and anti-corrosion treatments, further enhance their adaptability to diverse operational needs. Custom lengths up to 12 meters are available to facilitate seamless integration into various systems.
To ensure optimal performance, these pipes undergo advanced heat treatments such as normalizing, quenching, and tempering. Post-Weld Heat Treatment (PWHT) is recommended for wall thicknesses exceeding 12 mm to minimize residual stresses and maximize structural stability. Comprehensive testing, including ultrasonic, radiographic, and hydrostatic examinations, guarantees the reliability and durability of every pipe.
Kwality Steelage Pvt. Ltd. ensures that ASTM A691 GR 5 CR pipes adhere to the highest quality standards and come with complete industry certifications. Packaged meticulously in wooden crates or bundles, these pipes are shipped worldwide to regions such as Europe, the Middle East, and Southeast Asia. Contact us today to explore our comprehensive range of ASTM A691 GR 5 CR Alloy Steel Pipes and secure dependable solutions for your industrial projects.
| Specification | Details |
| Size Range | 1/2 to 36 inch NB |
| Wall Thickness Range | SCH 20, SCH 40, SCH 80, SCH 120, SCH 160, XXS, All Schedules |
| Applications | Power Plants, Petrochemical Industries, Refineries, Structural Systems |
| Pipe Type | Electric Fusion Welded (EFW) |
| Pipe Form | Round, Square, Rectangular, Hydraulic Pipes |
| Manufacturing Process | Heat-Treated (Normalized, Quenched, Tempered) |
| Material Composition | 5% Chromium, 0.5% Molybdenum, Carbon, Manganese, Silicon, Phosphorus, Sulfur |
| End Type | Plain, Beveled, Threaded |
| Length Options | Single Random, Double Random, Custom Lengths (up to 12 meters) |
| Surface Coating | Anti-Corrosion Coating, Black Painting, Galvanized |
| Tolerance Type | Outside Diameter (OD) | Wall Thickness (WT) |
| Size Tolerance | ±1% of specified OD | +12.5% / -10% of specified WT |
| Grade | Yield Strength (Min) | Tensile Strength (Min) | Elongation (%) |
| 5 CR | 310 MPa | 515-690 MPa | 18-22% |
| Element | Maximum % Composition |
| Carbon (C) | 0.05-0.15% |
| Manganese (Mn) | 0.30-0.60% |
| Phosphorus (P) | 0.025% |
| Sulfur (S) | 0.025% |
| Silicon (Si) | 0.15-0.40% |
| Chromium (Cr) | 4.00-6.00% |
| Molybdenum (Mo) | 0.45-0.65% |
| Pipe Type | Price Range (USD) |
| ASTM A691 GR 5 CR Alloy Steel Pipes | $1,200 – $2,500 |
For ASTM A691 GR 5 CR pipes, precise heat treatment is crucial to achieve maximum durability and mechanical performance. These pipes undergo stress-relief processes at 1100-1250°F (590-675°C) and normalization at a maximum of 1700°F (925°C). Quenching and tempering are applied as per application-specific requirements. Post-Weld Heat Treatment (PWHT) is recommended for wall thicknesses greater than 12 mm to enhance weld integrity and minimize residual stresses.
| Feature | GR 5 CR | GR 9 CR |
| Chromium Content | 4.00-6.00% | 8.00-10.00% |
| Molybdenum Content | 0.45-0.65% | 0.90-1.10% |
| Applications | High-Temperature, High-Pressure | Extreme Temperature, Critical Pressure |
Choose Kwality Steelage Pvt. Ltd. for industry-leading ASTM A691 GR 5 CR Alloy Steel Pipes. Engineered for reliability in challenging environments, we offer tailored solutions to meet your specific requirements. Contact us today!
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