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Ojas Pipes and Tubes is a prominent manufacturer and exporter of high-grade Alloy Steel EFW Pipes from Kolkata, India. They are known for their precision engineering and exceptional craftsmanship, serving various industrial requirements with durable, corrosion-resistant pipes. The Alloy Steel EFW Pipes manufactured by Ojas are characterized by good strength and durability along with consistent performance at high pressure and temperature conditions. With a focus on quality and customer satisfaction, Ojas Pipes and Tubes provides timely delivery and competitive prices, which makes them a reliable business partner for industries seeking reliable piping solutions in industries like oil and gas, construction, and manufacturing.
Alloy Steel EFW Pipes comprise mostly carbon, manganese, chromium, nickel, and molybdenum in exact ratios to improve mechanical properties. The alloy content provides high tensile strength, hardness, and superior resistance to corrosion and wear. These pipes generally show tensile strength of 550-750 MPa and yield strength of 350-550 MPa. Their impact toughness and ductility provide them a strong footing in rigorous applications. The EFW welding process provides defect-free joints with excellent structural integrity and strength under harsh operating conditions.
| Alloy Steel EFW Pipes Specification | ASTM A691 / ASME SA691 |
| Alloy Steel EFW Pipes Grades | ASTM A691 1-1/4CR, ASTM A691 2-1/4CR, ASTM A691 3CR,ASTM A672 , ASTM A691 5CR, ASTM A691 9CR, ASTM A691 91, ASME SA691 1-1/4CR, ASME SA691 2-1/4CR, ASME SA691 3CR, ASME SA691 5CR, ASME SA691 9CR, ASME SA691 91 |
| Alloy Steel EFW Pipes Type | EFW (Electric Fusion Welded Pipes ) |
| Alloy Steel EFW Pipes Class Designation | CLASS 10, ,11, 12, 13, 20, 21, 22, 23, 30, 31, 32, 33, 40, 41, 42, 43 |
| Alloy Steel EFW Pipes Outer Diameter Size | 16″ NB to 100″ NB (Nominal Bore Size) |
| Alloy Steel EFW Pipes Wall Thickness | Schedule 20 to Schedule XXS (Heavier On Request) Up to 75 mm Thickness |
| Alloy Steel EFW Pipes Length | 5 to 7 Meters, 09 to 13 Meters, Single Random Length, Double Random Length And Customize Size. |
| Alloy Steel EFW Pipes Ends | Plain Ends / Beveled Ends / Coupling |
| Alloy Steel EFW Pipes Delivery Conditions | As Rolled, Normalizing Rolled, Thermomechanical Rolled / Formed, Normalizing Formed, Normalized and Tempered / Quenched and Tempered – BR / N / Q /T |
| Alloy Steel EFW Pipes Coating | Epoxy Coating / Colour Paint Coating / 3LPE Coating. |
| Alloy Steel EFW Pipes Other Testing | NACE MR0175, NACE TM0177, NACE TM0284, Charpy V-Notch Test, Radiograph HIC Examination, XRAY, Ultrasonic EXAMINATION, Liquid Penetrant, Magnetic Particle, HIC Test, SSC Test, SWC, H2 Service, IBR, PWHT Etc. |
| Alloy Steel EFW Pipes Dimension | All Pipes Tube Is Manufactured and Inspected / Tested to the Relevant standards including ASTM, ASME, API. |
| Alloy Steel EFW Pipes Value Added Services | Draw / Expansion / Machining / Sand Blasting / Shot Blasting / Galavanizing / Heat Treatment |
| Alloy Steel EFW Pipess Packaging | Loose / Bundle / Wooden Pallet / Wooden box-a / Plastic Cloth Wraps / Plastic End Caps / Beveled Protector |
| Alloy Steel EFW Pipes Shipment & Transportation | By Road – Truck / Train, By Sea – Break-bulk Conventional Vessel / FCL (Full Container Load) / LCL (Less Container Load) / 20 Feet Container / 40 Feet Container / 45 Feet Container / High Cube Container / Open Top Container, By Air – Freighter Civil Passenger and Cargo Planes |
| Alloy Steel EFW Pipes Material Test Certificate | Manufacturer Test Certificate As Per EN10204 3.1, 3.2 / Laboratory Test Certificate From NABL Approved Lab. / Under Third Party Inspection Agency Like SGS, TUV, DNV, LLOYDS, ABS ETC |
| Class | Heat Treatment on Pipe | Radiography, see Section | Pressure Test, see: |
| A691 / SA691 EFW Pipe Class 10 | none | none | none |
| A691 / SA691 EFW Pipe Class 11 | none | 9 | none |
| A691 / SA691 EFW Pipe Class 12 | none | 9 | 8.3 |
| A691 / SA691 EFW Pipe Class 13 | none | none | 8.3 |
| A691 / SA691 EFW Pipe Class 20 | stress relieved, see 5.3.1 | none | none |
| A691 / SA691 EFW Pipe Class 21 | stress relieved, see 5.3.1 | 9 | none |
| A691 / SA691 EFW Pipe Class 22 | stress relieved, see 5.3.1 | 9 | 8.3 |
| A691 / SA691 EFW Pipe Class 23 | stress relieved, see 5.3.1 | none | 8.3 |
| A691 / SA691 EFW Pipe Class 30 | normalized, see 5.3.2 | none | none |
| A691 / SA691 EFW Pipe Class 31 | normalized, see 5.3.2 | 9 | none |
| A691 / SA691 EFW Pipe Class 32 | normalized, see 5.3.2 | 9 | 8.3 |
| A691 / SA691 EFW Pipe Class 33 | normalized, see 5.3.2 | none | 8.3 |
| A691 / SA691 EFW Pipe Class 40 | normalized and tempered, see 5.3.3 | none | none |
| A691 / SA691 EFW Pipe Class 41 | normalized and tempered, see 5.3.3 | 9 | none |
| A691 / SA691 EFW Pipe Class 42 | normalized and tempered, see 5.3.3 | 9 | 8.3 |
| A691 / SA691 EFW Pipe Class 43 | normalized and tempered, see 5.3.3 | none | 8.3 |
| Pipe Grade | ASTM Specification | Post-Weld Heat-Treat Temperature Range (Strees Relieving), F ( C) | Normalizing Temperature, max unless otherwise noted, F ( C) | Quenching Temperature, max unless otherwise noted, F ( C) | Tempering Temperature, min, F ( C) |
| CM-65 | A204/ A204M | 1100 to 1200 (590 to 650) | 1700 (925) | … | … |
| CM-70 | A204/ A204M | 1100 to 1200 (590 to 650) | 1701 (925) | … | … |
| CM-75 | A204/ A204M | 1100 to 1200 (590 to 650) | 1702 (925) | … | … |
| CMSH-70 | A537/A 537M | 1100 to 1200 (590 to 650) | 1703 (925) | … | … |
| CMS-75 | A 299/A 299M | 1100 to 1200 (590 to 650) | 1704 (925) | … | … |
| CMSH-80 | A537/A 537M | 1100 to 1200 (590 to 650) | A | 1700 (925) | 1100 to 1250 (590 to 675) |
| 1/2 CR | A387 / A387M | 1100 to 1300 (590 to 705) | 180 (1010) | 1700 (925) | 1150 to 1375 (620 to 745) |
| 1CR | A387 / A387M | 1100 to 1350 (590 to 730) | 181 (1010) | 1700 (925) | 1150 to 1375 (620 to 745) |
| 1-1/4 CR | A387 / A387M | 1100 to 1375 (590 to 745) | 182 (1010) | 1700 (925) | 1150 to 1375 (620 to 745) |
| 2-1/4 CR | A387 / A387M | 1200 to 1400 (650 to 760) | 183 (1010) | 1700 (925) | 1250 to1400 (675 to 760) |
| 3CR | A387 / A387M | 1200 to 1400 (650 to 760) | 184 (1010) | 1700 (925) | 1250 to1400 (675 to 760) |
| 5CR | A387 / A387M | 1200 to 1400 (650 to 760) | 185 (1010) | 1700 (925) | 1300 to 1400 (705 to 760) |
| 9CR | A387 / A387M | 1325 to 1375 (715 to 745) | B | … | 1325 to 1375 (715 to 745) |
| 91 | A387 / A387M | 1350 to 1420 (730 to 770) | 1350 to 1420 (730 to 770) | 1900 min (1040 min) | 1350 to 1440 (730 to 780) |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
When you choose Alloy steel EFW pipe from Ojas Pipes and Tubes, you can count on exceptional quality and long-lasting durability. These tubes offer excellent corrosion resistance and high strength, making them perfect for various industrial applications. Our commitment to outstanding service and reliable delivery guarantees customer satisfaction with every order. With extensive expertise in stainless steel products, we provide premium solutions tailored to meet your unique needs.
Ojas Pipes and Tubes, a top supplier of Alloy steel EFW pipe in Kolkata, India, offers a comprehensive range of high-quality pipes and tubes for various industrial applications. With an extensive inventory and a commitment to exceptional customer service, they have become the go-to source for stainless steel products in the area
At Ojas Pipes and Tubes, we specialize in providing custom-sized Alloy steel EFW pipe designed to meet your specific requirements. Our expert team is committed to delivering personalized solutions for all your piping and tubing needs. For more details, contact us at sales@ojaspipesandtubes.co.in.
Alloy Steel EFW Pipes of Ojas Pipes and Tubes are widely utilized in numerous industrial applications because of their excellent strength and corrosion resistance. They are utilized extensively in oil and gas pipelines, power generation systems, chemical processing plants, and automotive sectors. Due to their high pressure and temperature endurance, they are ideal for conveying fluids and gases safely and economically. Further, they are employed in the construction sector for structural applications and in the production of heavy machinery. Their strength and resistance to severe conditions guarantee long lifecycles, thus Alloy Steel EFW Pipes are a critical piece of equipment in critical infrastructure projects.
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