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Home > Stainless Steel >Stainless Steel 304 EFW pipes
Nestled in the heart of Naypyidaw, Tun Pipes is your trusted partner for high-quality industrial solutions, specializing in Stainless Steel 304 EFW pipes. We understand that the backbone of any major project is reliability, which is why we are committed to supplying pipes that meet rigorous standards. Our dedication to excellence ensures that your systems are built with integrity from the ground up, supporting the ambitious growth of Myanmar’s infrastructure with products you can count on.
The composition of Stainless Steel 304 is a careful balance, primarily chromium and nickel, which gives it that renowned corrosion resistance. These pipes are formed through the Electric Fusion Welding process, creating a strong, reliable seam. They offer excellent mechanical properties, standing firm under high pressure and extreme temperatures. This inherent strength and durability make them a go-to material for demanding environments where failure is simply not an option, ensuring long-term performance and peace of mind.
| 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 Tun 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.
| 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 Tun Pipes and Tubes provides tailored solutions for all your piping and tubing requirements. For more information, contact us at sales@tunpipes.com.
These Stainless Steel 304 EFW Pipes are commonly found in heat exchangers, boilers, condensers, and piping systems where corrosion resistance and reliability are crucial. They also play a vital role in chemical and petrochemical plants, food and beverage processing, pharmaceutical industries, marine environments, and water treatment facilities. Furthermore, these pipes are perfect for structural, HVAC, and industrial applications that demand long-lasting durability, leak-free operation, and mechanical reliability. The combination of EFW construction, corrosion resistance, and mechanical strength makes Stainless Steel 304 EFW Pipes a fantastic choice for challenging industrial and commercial piping needs.
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