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Home > Stainless Steel > Stainless Steel 317 and 317L Welded Pipes
Iris Pipes and Tubes, located in Cairo, Egypt, stands out as a top manufacturer and supplier of **Stainless Steel 317 and 317L Welded Pipes**. They specialize in delivering high-quality piping solutions designed for tough, corrosive industrial settings. Renowned for their precision in manufacturing, cutting-edge technology, and commitment to international standards, the company ensures that their **Stainless Steel 317 and 317L Welded Pipes** offer exceptional resistance to pitting, crevice corrosion, and chemical attacks. This makes them perfect for applications where durability and reliability are non-negotiable. Iris Pipes and Tubes caters to a variety of industries, including chemical processing, petrochemical, oil and gas, marine, and pharmaceuticals.
Stainless Steel 317 and 317L Welded Pipes are primarily made of chromium (18-20%), nickel (11-15%), molybdenum (3-4%), and low carbon in 317L Some of their mechanical properties are 515 MPa tensile strength, . 205 MPa yield strength, good elongation (40%) included. This pipe offers excellent corrosion resistance, especially in acidic and chloride environments, due to its high molybdenum content. The low carbon content (317L) prevents carbide precipitation during welding, increases resistance to sensitization and intergranular corrosion, and makes it ideal for severe applications.
Specifications : ASTM A312 / ASME SA312
Outside Diameter : 6.00 mm OD up to 914.4 mm OD, Sizes up to 24″ NB available Ex-stock, OD Size available Ex-stock
Thickness : 0.3mm – 50 mm, SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS, SCH XS
Size : 1/2″ NB – 24″ NB
Type : Welded
Form: Round Pipes, Square Pipes, Rectangular Pipes.
Length : Single Random, Double Random & Required Length
End : Plain End, Beveled End, Treaded
| STANDARD | UNS | WERKSTOFF NR. | EN | JIS |
| SS 317 | S31700 | 1.4449 | – | SUS 317 |
| SS 317L | S31703 | 1.4438 | – | SUS 317L |
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | Fe |
| SS 317 and 317L | 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 |
| 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.
These **Stainless Steel 317 and 317L Welded Pipes** are austenitic stainless steels enriched with molybdenum, featuring around 18–20% chromium, 11–15% nickel, and 3–4% molybdenum. The 317L variant has a lower carbon content, which enhances its weldability and minimizes carbide precipitation during the manufacturing process. Both grades boast impressive mechanical properties, such as high tensile and yield strength, good ductility, and thermal stability. The welded design guarantees consistent dimensions, robust joints, and dependable performance even in corrosive and high-temperature conditions.
Iris Pipes and Tubes, a leading manufacturer and supplier of Stainless Steel 317 and 317L Welded Pipes in Alexandria, Egypt, offers a comprehensive range of high-quality pipes and tubing suitable for various industrial applications. Our extensive inventory and commitment to exceptional service make us a trusted choice for regional products.
| NB Sizes | Sch 5 | Sch 10 | Sch 40 | Sch 80 | Sch 160 |
| 1/8″ | ✓ | ✓ | ✓ | ✓ | |
| 1/4″ | ✓ | ✓ | ✓ | ✓ | |
| 3/8″ | ✓ | ✓ | ✓ | ✓ | |
| 1/2″ | ✓ | ✓ | ✓ | ✓ | ✓ |
| 3/4″ | ✓ | ✓ | ✓ | ✓ | ✓ |
| 1″ | ✓ | ✓ | ✓ | ✓ | ✓ |
| 1 1/4″ | ✓ | ✓ | ✓ | ✓ | ✓ |
| 1 1/2″ | ✓ | ✓ | ✓ | ✓ | ✓ |
| 2″ | ✓ | ✓ | ✓ | ✓ | ✓ |
| 2 1/2″ | ✓ | ✓ | ✓ | ✓ | ✓ |
| 3″ | ✓ | ✓ | ✓ | ✓ | ✓ |
| 4″ | ✓ | ✓ | ✓ | ✓ | ✓ |
| 5″ | ✓ | ✓ | ✓ | ✓ | |
| 6″ | ✓ | ✓ | ✓ | ✓ |
| Grade | Density (kg/m3) | Elastic Modulus (GPa) | Mean Coefficient of Thermal Expansion (m/m/0C) | Thermal Conductivity (W/m.K) | Specific Heat 0-1000C (J/kg.K) | Electrical Resistivity (n.m) | |||
| 0-1000C | 0-3150C | 0-5380C | at 1000C | at 5000C | |||||
| 317 and 317L | 8000 | 193 | 17.2 | 17.8 | 18.4 | 16.2 | 21.5 | 500 | 720 |
You’ll find **Stainless Steel 317 and 317L Welded Pipes** widely utilized in sectors that demand high corrosion resistance, mechanical strength, and durability. Typical applications include chemical process piping, heat exchangers, condensers, boilers, and refinery systems. These pipes are particularly suited for the petrochemical, pharmaceutical, marine, and power generation industries, where they often face aggressive chemicals, elevated temperatures, and chloride-rich environments. Their blend of mechanical strength, corrosion resistance, and weld integrity ensures they deliver long-lasting reliability and top-notch performance in even the most challenging industrial applications.
Stainless Steel 317 and 317L Welded Pipes are widely used in applications requiring high corrosion resistance, such as chemical processing, petrochemicals, pharmaceuticals and are ideal for handling strong chemicals, acids and chlorides in piping systems and heat exchangers. Their high strength and durability make them suitable for marine applications, oil and gas facilities and food processing equipment. Low-carbon 317L is particularly good for welding applications, as it reduces carbide precipitation, and reduces the risk of intergranular corrosion in high-temperature environments.
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