Njabulo Stainless is a reputable manufacturer and supplier of high-performance stainless steel products, proudly located in Cape Town, South Africa. They specialize in Stainless Steel 17-4 PH Pipes, providing top-notch solutions that are engineered to meet the rigorous standards of various industries. With a strong focus on precision manufacturing, corrosion resistance, and impressive mechanical strength, Njabulo Stainless caters to a diverse array of sectors, including aerospace, marine, petrochemical, and power generation. What sets them apart is their technical know-how, dependable service, and prompt delivery, making them the go-to partner for stainless steel pipe needs throughout South Africa and beyond.
The Stainless Steel 17-4 PH Pipes from Njabulo Stainless are made up of about 17% chromium, 4% nickel, 3–5% copper, along with small amounts of manganese, silicon, and niobium. This precipitation-hardened grade strikes a fantastic balance between corrosion resistance and high strength. With a tensile strength reaching up to 1100 MPa and a yield strength around 1000 MPa after heat treatment (Condition H900), these pipes offer exceptional mechanical performance. They also maintain good toughness at cryogenic temperatures and boast excellent fatigue resistance, making them perfect for demanding structural and mechanical applications.
| Specifications | ASTM A312 / ASME SA312 |
| Dimensional specification | ANSI/ASME B36.19M, ANSI/ASME B36.10M |
| Size | 1 / 8″ NB – 24″ NB |
| 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 |
| Manufacturing Shapes | Hydraulic, Round, Square, Hex, Honed |
| Manufacturing Techniques | Normalized & as Rolled |
| Schedule Thickness Range | SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS, SCH XS |
| End Types | Plain End, Beveled End, Treaded One End, TBE (Treaded Both Ends) |
| Surface Finish | No.1, No.4, No.8 Mirror Finish, 2B |
| Value Added Services | Cutting, Beveling, Polishing, Threading, Destructive, Non Destructive, Ultrasonic Testing |
| Inspection and Test Reports | EN 10204 3.1, Mill Test Certificates, Chemical Reports, PMI Test Reports, Mechanical Reports, Third Party Inspection, NABL Approved Lab, Visual Inspection, Destructive Test and Non Destructive Test Reports |
| Outside Finish | 2B, No.4, No.1, No.8 Mirror Finish for Stainless Steel Seamless Pipes, Finish as per customer Requirements |
| Delivery Condition | Annealed and Pickled, Polished, Bright Annealed, Cold Drawn |
| Heat Treatment | Normalized, Normalized & Tempered |
| Packing of Seamless Pipes | Packed in Wooden Boxes, Plastic Bags, Steel Strips Bundled, or as per Customers Requests |
| Specials | Sizes and Specifications other than above can be on request |
| Grade | C | Cb+Ta | Cr | Cu | Fe | Mn | Ni | P | S | Si |
| SS 17-4 PH | 0.07 max | 0.15-0.45 | 15.00-17.50 | 3.00-5.00 | Bal | 1.0 max | 3.0-5.0 | 0.40 max | 0.03 max | 1.0 |
| Grade | Tensile Strength ksi (MPa) | Yield Strength 0.2% ksi (min) | Elongation % | Hardness (Rockwell) MAX |
| SS 17-4 PH | 170000 psi | 140000 psi | 6% | 38 |
Contact us to get a quick quote for your requirement.
We ensured the high quality standards for Stainless Steel 17-4 PH pipes with strict testing and certification. The pipe is checked with a set of comprehensive tests that include chemical analysis, mechanical property checks, and corrosion resistance assessments. Relevant certificates, like Mill Test Certificates (MTC), accompany the products as well to meet international standards completely.
“High-quality 17-4 PH stainless steel pipes offer exceptional strength, corrosion resistance, and durability. Perfect for demanding industrial applications, they provide reliable performance in extreme conditions and harsh environments.”
“ASTM A312 SS 17-4 PH ERW pipes deliver outstanding strength and corrosion resistance. Ideal for high-stress applications, they ensure durability and reliable performance in challenging industrial environments and applications.”
Stainless Steel 17-4 PH capillary pipes offer superior strength and corrosion resistance. Ideal for precision applications, they ensure reliability and durability in demanding environments, combining high performance with long-lasting quality.
UNS S17400 spiral welded pipes provide exceptional strength and corrosion resistance. Ideal for high-pressure and demanding applications, they offer durability and reliable performance in challenging industrial environments.
17-4 PH SS electropolished pipes offer superior corrosion resistance and a smooth finish. Ideal for sanitary and high-performance applications, they provide enhanced durability and reliability in demanding environments.
SS 17-4 PH slot round pipes feature exceptional strength and corrosion resistance with precision slots. Ideal for structural and filtration applications, they ensure durability and high performance in demanding conditions.
Njabulo Stainless’s Stainless Steel 17-4 PH Pipes are widely utilized in critical applications that require both high strength and corrosion resistance. In the aerospace sector, they are perfect for structural components and engine parts. The marine industry appreciates their durability in harsh, corrosive environments. In the petrochemical and oil & gas sectors, these pipes perform reliably under high pressure and temperature. They are also used in food processing equipment, medical instruments, and nuclear waste containers due to their cleanliness and strength. Njabulo Stainless offers customized pipe solutions to meet various industrial needs with precision and long-lasting performance.
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