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Home > Stainless Steel >Stainless Steel 317 and 317L EFW Pipes
Impex Tube India, based in Mumbai, is a renowned producer and supplier of high-grade pipes and tubes, providing top-class stainless steel solutions for critical industrial applications. Its flagship product among premium offerings is Stainless Steel 317 and 317L EFW (Electric Fusion Welded) Pipes, recognized for their improved corrosion-resistant features and superior mechanical strength. These pipes are engineered to operate in severely corrosive and high-temperature settings and adhere to international quality specifications. With a dedication to accuracy, durability, and client satisfaction, Impex Tube India caters to a broad industry base in both domestic and international markets.
Stainless Steel 317 and 317L EFW Pipes are molybdenum-containing austenitic stainless steels with excellent resistance to chemical corrosion. They contain chromium (18–20%), nickel (11–15%), and molybdenum (3–4%) in their composition, which offers high resistance to pitting and crevice corrosion. The only difference is the reduced carbon content in 317L (up to 0.03%), which enhances weldability and minimizes the risk of intergranular corrosion. These pipes provide a minimum tensile strength of 515 MPa and yield strength of 205 MPa, which gives them good durability. Their strong mechanical properties make them ideal for corrosive, high-stress 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. | EN | JIS |
| SS 317 | S31700 | 1.4449 | – | SUS 317 |
| SS 317L | S31703 | 1.4438 | X2CrNiMo18-15-4 | SUS 31 |
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | Fe |
| SS 317 | 0.08 max | 2.0 max | 1.0 max | 0.045 max | 0.030 max | 18.00 – 20.00 | 3.00 – 4.00 | 11.00 – 15.00 | 57.845 min |
| SS 317L | 0.035 max | 2.0 max | 1.0 max | 0.045 max | 0.030 max | 18.00 – 20.00 | 3.00 – 4.00 | 11.00 – 15.00 | 57.89 min |
| Tensile Strength | Yield Strength (0.2%Offset) | Elongation | Hardness | |
| Rockwell B (HR B) max | Brinell (HB) max | |||
| Psi – 75000, MPa – 515 | Psi – 30000, MPa – 205 | 35 % | 95 | 217 |
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 317 and 317L EFW Pipes from Impex Tube India 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 | … | … | … | … |
|
Physical Properties (Room Temperature) |
||
|
Specific Heat (0-100°C) |
500 |
J.kg-1.°K-1 |
|
Thermal Conductivity |
14.6 |
W.m -1.°K-1 |
|
Thermal Expansion |
16.5 |
mm/m/°C |
|
Modulus Elasticity |
193 |
GPa |
|
Electrical Resistivity |
7.4 |
μohm/cm |
|
Density |
7.99 |
g/cm |
We offer custom sizes for Stainless Steel 317 and 317L EFW Pipes to meet your specific needs. Our dedicated team at Impex Tube India provides tailored solutions for all your piping and tubing requirements. For more information, contact us at sales@impextubeind.com.
Stainless Steel 317 and 317L EFW Pipes find extensive use in industries where there is high resistance to aggressive chemical and corrosive atmospheres. Such industries include chemical and petrochemical processing, where the pipes are efficient in handling acids, solvents, and chlorides. They are also suitable to be used in pulp and paper plants, textile processing machinery, and food and beverage manufacture owing to their hygienic nature and corrosion resistance. In offshore and marine uses, they work well in saltwater environments. Moreover, their low carbon content in 317L also makes them highly suitable for welded structures in pollution control systems, power generation, and pharmaceuticals, providing long-term performance and durability.
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