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Maria Pipes and Tubes is a well-respected manufacturer and supplier of Alloy Steel EFW Pipes based in Kuala Lumpur, Malaysia. These pipes are crafted using Electric Fusion Welding (EFW) technology, making them perfect for high-strength, corrosion-resistant, and high-temperature applications across a variety of industries. Our Alloy Steel EFW Pipes meet international quality standards and come in a range of grades, sizes, and specifications to cater to different project requirements. We proudly serve sectors like power generation, petrochemicals, oil & gas, and chemical processing, ensuring that our products deliver outstanding durability, precise dimensions, and reliable performance, even in the toughest operating conditions.
Our Alloy Steel EFW Pipes are made from high-quality carbon steel mixed with alloying elements such as chromium, molybdenum, nickel, and vanadium. These additions boost mechanical strength, hardness, toughness, and resistance to oxidation and corrosion. The EFW process creates a robust, consistent weld seam that guarantees superior structural integrity and the ability to handle pressure effectively. Typically, these pipes provide high tensile and yield strengths, excellent creep resistance, and dependable performance in high-temperature and high-pressure settings, making them ideal for critical industrial applications.
| 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 Maria 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.
Maria Pipes and Tubes, a top supplier of Alloy steel EFW pipe in Kuala lumpur, Malaysia, 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 Maria 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@mariapipes.com.
Alloy Steel EFW Pipes are commonly used in situations where strength, durability, and corrosion resistance are crucial. They find their place in high-pressure steam lines, boiler tubes, reheaters, and heat exchangers in power plants. In petrochemical and refinery settings, they are essential for transporting hot fluids and gases under demanding conditions. Their impressive mechanical properties and wear resistance make them suitable for marine engineering, chemical processing plants, and heavy-duty machinery. Thanks to their strong welded structure and long lifespan, Alloy Steel EFW Pipes are the go-to choice for safe and efficient industrial piping solutions.
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