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Bosega Pipes and Tubes stands out as a top-notch manufacturer and supplier of Stainless Steel 317 Tubing in Cape Town, South Africa. They specialize in delivering high-quality tubing solutions that are built to withstand corrosion, ensure durability, and perform reliably in tough industrial settings. Stainless Steel 317 is an austenitic grade known for its high molybdenum content, which provides outstanding resistance to pitting, crevice corrosion, and harsh oxidizing environments. Bosega takes pride in their precision manufacturing, offering smooth surfaces and consistent wall thickness, ensuring that their tubing meets international standards and is perfect for applications in chemical processing, petrochemical, marine, and various industrial systems.
The composition of Stainless Steel 317 Tubing includes iron, chromium (18–20%), nickel (11–15%), molybdenum (3–4%), along with trace amounts of carbon, manganese, and silicon. The elevated molybdenum content significantly boosts its corrosion resistance, especially in environments rich in chlorides and oxidizing agents. On the mechanical side, it boasts high tensile and yield strength, excellent toughness, and good ductility. Thanks to its austenitic structure, it maintains dimensional stability, resists stress corrosion cracking, and performs reliably under fluctuating pressure and temperature conditions.
| Tube Standard | ASTM A213, A269, A249, A511, A554 / ASME SA213, SA269, SA249, SA511, SA554 |
| Tube Dimension | ANSI/ASME B36.19M, ANSI/ASME B36.10M |
| Seamless Tube Sizes | 1 / 2″ NB – 16″ NB |
| Welded Tube Sizes | 1 / 2″ NB – 24″ NB |
| Tube Outside Diameter | 6.00 mm OD up to 914.4 mm OD, Sizes up to 24” NB available Ex-stock, OD Size Steel Tubes available Ex-stock |
| Tube Manufacturing Process | Seamless / Welded / ERW / Fabricated / CDW / 100% X Ray Welded |
| Stainless Steel Tube Schedule | SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS, SCH XS |
| Tube Length | Single Random, Double Random, Standard & Cut length |
| Tube End Types | Plain Ends (PE), Threaded Ends (TE), Bevelled Ends (BW), Grooved Mechanical Joints or Grooved Ends, TBE (Treaded Both Ends) |
| Delivery Condition | Annealed and Pickled, Polished, Bright Annealed, Cold Drawn |
| Outside Finish | 2B, No.4, No.1, No.8 Mirror Finish for Stainless Steel Tubes, Finish as per customer Requirements |
| Value Added Services | Cutting, Beveling, Polishing, Threading, Destructive, Non Destructive, Ultrasonic Testing |
| STANDARD | WERKSTOFF NR. | UNS | JIS | BS | GOST | AFNOR | EN |
| SS 317 | 1.4449 | S31700 | SUS 317 | – | – | – | – |
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | |
| 317 | min. | – | – | – | – | – | 18.0 | 3.0-4.0 | 11.0 | – |
| max. | 0.08 | 2.0 | 1.0 | 0.040 | 0.030 | 20.0 | 14.0 | – | ||
| Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness | |
| Rockwell B (HR B) max | Brinell (HB) max | ||||
| 317 | 515 | 205 | 35 | 75 | 205 |
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 Tubing from Bosega Pipes and Tubes ensures high quality and durability, as these tubing offer excellent corrosion resistance and strength. Our commitment to exceptional service and reliable delivery guarantees customer satisfaction across various industrial applications. Our expertise in stainless steel products ensures you receive a top-tier solution tailored to your needs.
Bosega Pipes and Tubes, one of the largest suppliers of Stainless Steel 317 Tubing in Cape Town, South Africa, offers a comprehensive range of high-quality pipes and tubes suitable for various industrial applications. Their extensive inventory and commitment to exceptional service make them a go-to choice for stainless steel products in the region.
| Dimensions | Wall | Weight per | Dimensions | Wall | Weight per | |
|---|---|---|---|---|---|---|
| (mm) | (mm) | metre (kg) | (mm) | (mm) | metre (kg) | |
| 12.7 x 12.7 | 1.20 | 0.44 | 40 x40 | 1.20 | 1.49 | |
| 12.7 x 12.7 | 1.50 | 0.55 | 40 x40 | 1.50 | 1.85 | |
| 15 x 15 | 1.20 | 0.53 | 40 x40 | 2.00 | 2.45 | |
| 15 x 15 | 1.50 | 0.65 | 40 x40 | 3.00 | 3.75 | |
| 20 x 20 | 1.20 | 0.71 | 50 x50 | 1.50 | 2.32 | |
| 20 x 20 | 1.50 | 0.88 | 50 x50 | 2.00 | 3.08 | |
| 20 x 20 | 2.00 | 1.19 | 50 x50 | 3.00 | 4.65 | |
| 25 x 25 | 1.20 | 0.92 | 60 x60 | 2.00 | 3.71 | |
| 25 x 25 | 1.50 | 1.14 | 60 x60 | 3.00 | 5.49 | |
| 25 x 25 | 2.00 | 1.49 | 70 x70 | 3.00 | 6.53 | |
| 25 x 25 | 3.00 | 2.20 | 80 x80 | 2.00 | 4.98 | |
| 30 x 30 | 1.20 | 1.10 | 80 x80 | 3.00 | 7.53 | |
| 30 x 30 | 1.50 | 1.37 | 100 x 100 | 2.00 | 6.40 | |
| 30 x 30 | 2.00 | 1.84 | 100 x 100 | 3.00 | 9.53 | |
| 30 x 30 | 3.00 | 2.72 | ||||
| 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 | 8000 | 193 | 15.9 | 16.2 | 17.0 | 14.2 | 18.7 | 500 | 740 |
|
OD Size
Inches |
Tolerances, Inches |
||
|
OD,
Inches |
Wall |
Cut
Length (a), In. |
|
|
Less than 1 |
±0.004 |
All Sizes
± 10% |
+1/8–0 |
|
1 to 1-1/2 |
±0.006 |
||
|
Over 1-1/2 to 2 |
±0.008 |
||
|
Over 2 to 2-1/2 |
±0.010 |
+3/16–0 |
|
|
Over 2-1/2 to 3 |
±0.012 |
||
|
Over 3 to 4 |
±0.015 |
||
|
Over 4 to 5 |
+0.015
– 0.025 |
||
Yes, we offer custom sizes for Stainless Steel 317 Tubing to meet your specific requirements. Our team at Bosega Pipes and Tubes is committed to providing tailored solutions for all your Piping & tubing needs. For more details, contact us at sales@bosegapipes.co.za.
You’ll find Stainless Steel 317 Tubing widely utilized in chemical processing, petrochemical plants, marine and offshore systems, as well as in the pharmaceutical and food processing industries. It’s particularly well-suited for heat exchangers, process piping, storage tanks, and pressure vessels where corrosion resistance is paramount. Moreover, it’s used in seawater handling systems, desalination plants, and industrial fluid transport applications, offering long-lasting, low-maintenance, and high-performance solutions for even the most aggressive and demanding environments.
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