Lecong Stainless is a reputable manufacturer and supplier based in Da Nang, Vietnam, specializing in high-quality Stainless Steel 17-7 PH Flanges. These flanges are designed to deliver outstanding strength, corrosion resistance, and durability, making them perfect for tough industrial environments. This particular grade of precipitation-hardening stainless steel boasts impressive mechanical strength and excellent resistance to stress corrosion cracking, which is why it’s a go-to choice for aerospace, chemical, petrochemical, and marine applications. At Lecong Stainless, we prioritize precision manufacturing, rigorous quality control, and adherence to international standards, ensuring that our flanges provide reliability, precise dimensions, and long-lasting performance in critical piping and pressure systems.
The Stainless Steel 17-7 PH Flanges are made up of 17% chromium and 7% nickel, along with trace amounts of copper and niobium/tantalum for that extra precipitation hardening. They showcase tensile strength between 930 to 1400 MPa, yield strength ranging from 655 to 1100 MPa, and elongation of 10 to 20%, depending on how they’ve been age-hardened. This alloy is known for its excellent resistance to general corrosion, stress corrosion cracking, and moderate oxidizing environments. The blend of high strength, toughness, and corrosion resistance guarantees reliable performance in high-pressure and high-stress situations.
| SS 17-4PH Flange Standard | ASTM A182 / ASME SA182 |
| SS 17-4 PH Flange Grade | SS 17-4PH / UNS S17400 / WERKSTOFF NR. 1.4542 |
| SS 17-4PH Flange Size Range | 1/2″ TO 48″ (15NB to 1200NB) Custom Sizes |
| SS 17-4 PH Flanges Class | Class 150, Class 900, Class 1200, Class 300, Class 600, Class 1500, Class 2500, / PN6, PN25, PN10, PN16, PN40, PN64, etc. |
| SS 17-4PH Flange Dimension | B16.48, B16.47 A & B, ASME/ANSI B16.5, BS4504, ASME Flanges, DIN Flanges, BS Flanges, ANSI Flanges, EN Flanges, BS 10, EN-1092, DIN, GOST Flange, ANSI/ASME B16.5, 16.47A, 16.47B, 16.36, MSS S44, API605, API7S-15, API7S-43, JISB2220, ISO70051, EN1092, BS1560-3.1, |
| SS 17-4 PH Flanges DIN | DIN 2576, DIN 2632, DIN 2637, DIN 2638, DIN 2636, DIN 2641, DIN 2527, DIN 2635, DIN 2655, DIN 2566, DIN 2629, DIN 2656, DIN 2573, DIN 2633, DIN 2642, DIN 2634, DIN 2631, DIN 2627, DIN 2673, DIN 2628 |
| Types of SS 17-4PH Flanges | Screwed (Threaded) Flanges, Spectacle Blind Flanges, Forged Flanges, Socket-weld Flanges (SWRF), Spacer & Blind Flanges, Ring Type Joint Flanges (RTJ), Plate Flanges, Slip-on Flanges (SORF), Blind Flanges (BLRF), Industrial Flanges, Flat Face Flanges, Raised Face (RF) Flanges, Custom Flanges, Orifice Flanges, Reducing Flanges, Large Diameter Flanges, Drawing Flanges, Lap Joint Flanges (SOLJ), Long weld neck Flanges (LWNRF), Weld neck Flanges (WNRF), etc. |
| Grade | Mn | Si | Cr | Ni | Fe | C | S | P | |
|---|---|---|---|---|---|---|---|---|---|
| 17-7 PH | min. | 1.0 | 1.0 | 15.0 | 3.0 | – | – | – | – |
| max. | 1.0 | 1.0 | 17.5 | 5.0 | 73 | 0.070 | 0.030 | 0.040 | |
| Properties | Metric | Imperial |
|---|---|---|
| Density | 7.75 g/cm3 | 0.280 lb/in3 |
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DIN 1.4542 British Standard 17-7 PH pipe flanges combine high strength and excellent corrosion resistance. Designed for rigorous applications, they ensure secure, reliable connections in high-pressure environments.
Steel 17-7 PH forging facing flanges offer exceptional strength and resistance to high temperatures and corrosion. Perfect for critical applications, they provide robust, reliable connections with precision-engineered surfaces.
ASME B16.5 SS 17-7PH raised face flanges deliver superior strength and corrosion resistance, ensuring reliable performance in demanding conditions. Their raised face design enhances sealing for secure, high-pressure connections.
Each Stainless Steel 17-7 PH Flange is carefully packed with high-quality materials to prevent damage or corrosion during shipping. We prioritize customer satisfaction by ensuring timely delivery through efficient transportation methods. All relevant documentation for the product including certificates and specifications is provided to clients upon delivery to guarantee transparency and compliance with quality standards.
You’ll find Stainless Steel 17-7 PH Flanges widely utilized across various sectors, including aerospace, chemical processing, petrochemical, marine, and power generation. They’re perfect for connecting high-pressure piping systems, pressure vessels, pumps, valves, and other critical equipment where reliability under mechanical stress is crucial. These flanges are also commonly used in instrumentation systems, heat exchangers, and offshore platforms that face corrosive or high-temperature conditions. With their superior strength, corrosion resistance, and durability, Stainless Steel 17-7 PH Flanges are a trustworthy choice for demanding industrial and engineering applications.
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