Lecong Stainless is a reputable manufacturer and supplier based in Da Nang, Vietnam, specializing in high-performance Stainless Steel 17-4 PH Pipes designed to meet the rigorous demands of various industries. This particular grade is celebrated for its precipitation-hardening properties, offering an impressive blend of high strength, toughness, and resistance to corrosion. Lecong Stainless is committed to precise manufacturing, adhering to global standards to ensure that their pipes are not only dimensionally accurate but also durable enough for high-pressure and corrosive environments. These pipes are a popular choice in sectors like aerospace, chemical, petrochemical, marine, and power generation, thanks to their long service life and reliability.
The composition of Stainless Steel 17-4 PH Pipes includes 17% chromium and 4% nickel, along with copper and niobium to enhance precipitation hardening. This unique blend results in remarkable tensile strength ranging from 1000 to 1200 MPa, yield strength between 800 and 1000 MPa, and elongation of 10 to 20%, depending on the heat treatment (H900–H1150). These pipes excel in resisting stress corrosion cracking, oxidation, and pitting, while also maintaining their hardness and toughness even at elevated temperatures. Their balanced mechanical and chemical properties make them perfect for critical operations that require both strength and corrosion resistance.
| 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 |
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The composition of Stainless Steel 17-4 PH Pipes includes around 17% chromium and 4% nickel, along with copper and niobium for that extra precipitation hardening. This special blend results in a high tensile strength ranging from 1000 to 1200 MPa, yield strength up to 800 to 1000 MPa, and elongation between 10 to 20%, depending on the heat treatment (H900–H1150). These pipes maintain their toughness and hardness even at elevated temperatures and show remarkable resistance to pitting, oxidation, and stress corrosion cracking, ensuring they last a long time.
“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.
Stainless Steel 17-4 PH Pipes find extensive applications in aerospace components, chemical plants, offshore platforms, power generation turbines, and marine equipment. They are ideal for high-pressure piping systems, boiler tubes, hydraulic lines, and heat exchangers where durability and corrosion resistance are crucial. In marine and offshore settings, they effectively resist seawater corrosion, while in the aerospace and defense sectors, they deliver reliable performance under high-stress conditions. The combination of strength, toughness, and resilience to harsh environments makes Stainless Steel 17-4 PH Pipes the go-to choice for critical and long-term industrial applications.
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