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Maria Pipes and Tubes, located in Kuala Lumpur, Malaysia, is a well-respected manufacturer and supplier of top-notch stainless steel piping solutions. Their Stainless Steel 304 EFW (Electric Fusion Welded) Pipes are crafted to provide exceptional strength, corrosion resistance, and dependable performance for a variety of industrial applications. Thanks to cutting-edge electric fusion welding technology, these pipes boast precise welds and consistent quality. Maria Pipes and Tubes caters to industries like chemical processing, food and beverage, water treatment, and construction, offering products that adhere to international standards.
Stainless Steel 304 EFW Pipes are made up of 18–20% chromium and 8–12% nickel, which gives them remarkable corrosion resistance and solid mechanical properties. The carbon content is kept to a maximum of 0.08%, striking a balance between weldability and strength. The electric fusion welding method creates clean, robust weld seams with minimal distortion, resulting in pipes that have a tensile strength of about 515 MPa. These pipes also demonstrate good ductility, toughness, and resistance to oxidation and scaling in various environments.
| Specification | ASTM A358 / ASME SA358 |
| Specification | A / SA358 CLASS 1, A / SA358 CLASS 2, A / SA358 CLASS 3, A / SA358 CLASS 4, A / SA358 CLASS 5 |
| Grades | 304, 304L, 304H, 309S, 310S, 316, 316L, 316H, 317L, 321, 321H, 347, 347H, 904L ETC. |
| Type | EFW, ELECTRIC FUSION WELDED |
| Outer Diameter Size | Electric Fusion Welded / ERW- 8″ NB To 110″ NB (Nominal Bore Size) |
| Wall Thickness | Schedule 10 To Schedule 160 (3 mm to 100 mm Thickness) |
| Length | 01 Meter to 12.5 Meters, Single Random Length, Double Random Length And Customize Size. |
| Ends | Plain Ends / Beveled Ends |
| Delivery Conditions | As Rolled, Formed, Stress Relieved, Annealed, Hardened, Tempered |
| Coating | Electropolish, Mechanical Polish, Satin Finish, Passivated |
| Dimension | All Pipes Is Manufactured and Inspected / Tested to the Relevant standards including ASTM and ASME |
| Value Added Services | Draw / Expansion / Machining / Sand Blasting / Shot Blasting / Heat Treatment |
| Packaging | Loose / Bundle / Wooden Pallet / Wooden Box / Plastic Cloth Wraps / Plastic End Caps / Beveled Protector |
| 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 |
| STANDARD | UNS | WERKSTOFF NR. | AFNOR | EN | JIS | BS | GOST |
| SS 304 | S30400 | 1.4301 | Z7CN18‐09 | X5CrNi18-10 | SUS 304 | 304S31 | 08Х18Н10 |
| Grade | C | Ni | Si | N | S | Mn | P | Cr | Mo | |
| SS 304 | min. | – | 8.0 | – | – | – | – | – | 18.0 | – |
| max. | 0.08 | 10.5 | 0.75 | 0.10 | 0.030 | 2.0 | 0.045 | 20.0 | ||
| Grade | Tensile Strength (MPa) min | Elongation (% in 50mm) min | Yield Strength 0.2% Proof (MPa) min | Hardness | |
| Rockwell B (HR B) max | Brinell (HB) max | ||||
| SS 304 | 515 | 40 | 205 | 92 | 201 |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Choosing Stainless Steel 304 EFW Pipes from Maria Pipes and Tubes guarantees excellent corrosion resistance, high strength, and durability. Designed for diverse industrial applications, it delivers reliable performance in tough environments while maintaining competitive pricing for cost-effective solutions.
Stainless Steel 304 EFW Pipes are commonly utilized in fluid transport, structural applications, and industrial piping systems where corrosion resistance and durability are essential. They find their place in industries such as food and beverage processing, water treatment facilities, chemical manufacturing, and architectural projects. With their smooth internal surfaces and strong welds, these pipes are ideal for sanitary and high-pressure systems. They provide a cost-effective, high-quality solution for large diameter piping needs that demand reliability and longevity.
| NPS Designator | Outside Diameter | Nominal Wall Thickness | ||||||||
| in. | mm | Schedule 5SA | Schedule 10SA | Schedule 40SA | Schedule 80SA | |||||
| in. | mm | in. | mm | in. | mm | in. | mm | |||
| 8 | 8.625 | 219.08 | 0.109 | 2.77 | 0.148 | 3.76 | 0.322 | 8.18 | 0.500 | 12.70 |
| 10 | 10.750 | 273.05 | 0.134 | 3.40 | 0.165 | 4.19 | 0.365 | 9.27 | 0.500B | 12.70B |
| 12 | 12.750 | 323.85 | 0.156 | 3.96 | 0.180 | 4.57 | 0.375B | 9.52B | 0.500B | 12.70B |
| 14 | 14.000 | 355.60 | 0.156 | 3.96 | 0.188B | 4.78B | … | … | … | … |
| 16 | 16.000 | 406.40 | 0.165 | 4.19 | 0.188B | 4.78B | … | … | … | … |
| 18 | 18.000 | 457.20 | 0.165 | 4.19 | 0.188B | 4.78B | … | … | … | … |
| 20 | 20.000 | 508.00 | 0.188 | 4.78 | 0.188B | 4.78B | … | … | … | … |
| 22 | 22.000 | 558.80 | 0.188 | 4.78 | 0.218B | 5.54B | … | … | … | … |
| 24 | 24.000 | 609.60 | 0.218 | 5.54 | 0.250 | 6.35 | … | … | … | … |
| 30 | 30.000 | 762.00 | 0.250 | 6.35 | 0.312 | 7.92 | … | … | … | … |
| Grade | Density (kg/m3) | Specific Heat 0-1000C (J/kg.K) | Elastic Modulus (GPa) | Mean Coefficient of Thermal Expansion (m/m/0C) | Thermal Conductivity (W/m.K) | Electrical Resistivity (n.m) | |||
| 0-100°C | 0-315°C | 0-538°C | at 100°C | at 500°C | |||||
| 304 | 8000 | 500 | 193 | 17.2 | 17.8 | 18.4 | 16.2 | 21.5 | 720 |
We offer custom sizes for Stainless Steel 304 EFW Pipes to meet your specific needs. Our dedicated team at Maria Pipes and Tubes provides tailored solutions for all your piping and tubing requirements. For more information, contact us at sales@mariapipes.com.
Stainless Steel 304 EFW Pipe is widely used in various industries due to its corrosion resistance and excellent strength. Typical applications include chemical processing, food and beverage manufacturing, oil and gas, and pharmaceutical manufacturing. These pipes are ideal for water and air piping, making them suitable for piping systems, pressure vessels and heat exchangers. In addition, its durability and aesthetic appeal make it popular in architectural applications such as gloves and shelves. Its versatility and reliability ensure that the demanding needs of both technology and business are met.
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