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Home > Products > Industrial Metal Pipe > ASTM A691 Pipes > ASTM A691 GR CM-75
ASTM A691 GR CM-75, Electric-Fusion-Welded Pipes, High-Pressure EFW Pipes, Heat-Treated Alloy Steel Pipes, Petrochemical Pipes, High-Temperature Steel Pipes
ASTM A691 Gr CM-75 is a high-performance electric-fusion-welded (EFW) steel pipe widely recognized for its reliability in high-pressure applications. Manufactured to meet stringent industrial standards, these pipes are engineered for moderate-temperature environments, making them suitable for industries such as petrochemicals, power plants, and marine operations. Kwality Steelage Pvt. Ltd., a leading manufacturer and exporter based in Mumbai, India, supplies these pipes with guaranteed quality and precision. The material is tailored to offer superior durability and thermal resistance, meeting the demands of critical infrastructure projects globally.
The technical excellence of ASTM A691 Gr CM-75 is evident in its specification. These pipes undergo post-weld heat treatment at 1100–1200°F (590–650°C) and quenching at 1700°F (925°C) to ensure optimal mechanical properties. With size ranges from 1/2″ NB to 36″ NB and wall thicknesses up to 60mm, they cater to diverse requirements, including customized dimensions. Available in seamless and fabricated forms, they are ideal for constructing pipelines and pressure vessels subjected to extreme stress and temperature variations.
These pipes are available in multiple grades and classes, each offering specific chemical and mechanical properties to suit varied industrial applications. For instance, ASTM A691 Gr CM-75 features a carbon-manganese-silicon composition, with chromium and molybdenum enhancing its corrosion and wear resistance. Mechanical properties include a minimum yield strength of 205 MPa and tensile strength ranging from 415 to 585 MPa, ensuring the pipes’ structural integrity under high-pressure conditions.
ASTM A691 Gr CM-75 pipes are designed for seamless and efficient welding. Whether welded manually or automatically, these pipes deliver high precision and reliability. The electric-fusion-welding process ensures robust joint integrity, making them ideal for transporting oil, gas, and other critical fluids. Heat treatment, including normalizing, stress relieving, and quenching, enhances the pipes’ toughness and resilience, ensuring they withstand challenging operating environments.
With their outstanding versatility, ASTM A691 Gr CM-75 pipes are employed in various sectors, including chemical industries, boilers, and marine engineering. Kwality Steelage Pvt. Ltd. ensures a steady supply of these pipes, complete with customizations such as beveled ends, anti-corrosion coatings, and plastic end caps for added protection. Contact us today for competitive pricing, comprehensive technical support, and high-quality solutions that meet global standards. Optimize your industrial operations with Kwality Steelage Pvt. Ltd.’s trusted expertise.
| Feature | Details |
|---|---|
| Size Range | 1/2 inch to 36 inch NB |
| Schedule Thickness Range | SCH 5, SCH 10, SCH 40, SCH 80, SCH 120, SCH 160, XXS, All Schedules |
| Applications | Power Plants, Petrochemical Industries, Boilers, Oil Refineries, Chemical Processing, Marine Structures |
| Pipe Type | Electric-Fusion-Welded (EFW) |
| Pipe Form | Round, Square, Rectangular, Hydraulic Pipes |
| Manufacturing Process | EFW with Heat Treatment (Stress Relieved, Normalized, Quenched, and Tempered) |
| Material Composition | Carbon-Manganese-Silicon Steel with Optional Additions of Chromium and Molybdenum |
| End Type | Plain, Beveled, Threaded |
| Length Options | Single Random, Double Random, Custom Lengths (up to 12 meters) |
| End Protection | Plastic Caps |
| Outside Coating | Anti-Corrosion Oil, Black Painting |
| 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 40 | 1.62 |
| 33.40 | 4.55 | 1 | SCH 80 | 3.29 |
| 88.90 | 7.62 | 3 | SCH 120 | 15.51 |
| 219.08 | 12.70 | 8 | SCH 160 | 65.63 |
| 355.60 | 25.40 | 14 | SCH XXS | 132.67 |
Additional sizes and weights available upon request.
| Grade | Yield Strength (Min) | Tensile Strength (Min) | Elongation (%) |
|---|---|---|---|
| CM-75 | 205 MPa | 485 MPa | 18-22% |
| Element | % Composition |
|---|---|
| Carbon (C) | 0.05-0.15% |
| Manganese (Mn) | 0.40-0.80% |
| Phosphorus (P) | 0.025% (Max) |
| Sulfur (S) | 0.025% (Max) |
| Silicon (Si) | 0.15-0.50% |
| Chromium (Cr) | 0.44-0.65% |
| Molybdenum (Mo) | 0.40-0.65% |
| Pipe Type | Price Range (USD) |
|---|---|
| ASTM A691 GR CM-75 EFW Pipes | $900 – $2,200 |
To achieve maximum durability and structural stability, ASTM A691 GR CM-75 pipes undergo specific welding and heat treatment processes. The electric fusion welding (EFW) process ensures robust joint formation, crucial for high-pressure operations. Post-Weld Heat Treatment (PWHT) is conducted at 1100–1200°F (590–650°C) for stress relief, followed by quenching at 1700°F (925°C). This treatment reduces the risk of stress corrosion cracking and ensures uniform mechanical properties throughout the pipe.
Explore high-performance ASTM A691 GR CM-75 EFW pipes with Kwality Steelage Pvt. Ltd., your trusted partner in industrial solutions. Contact us for a free quote and expert guidance tailored to your project needs.
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