Operating from Manama, Bahrain, Niazi Stainless has established itself as a trusted source for high-performance industrial components, specializing in the supply and manufacture of Stainless Steel 17-4 PH Flanges. We understand that in demanding sectors like oil and gas or chemical processing, reliability is paramount. That’s why we focus on providing flanges made from this exceptional grade, known for its remarkable strength and corrosion resistance, ensuring your piping systems are built for longevity and safety under the toughest conditions.
The standout quality of 17-4 PH Stainless Steel lies in its specific composition and the impressive mechanical properties that result. It’s a precipitation-hardening alloy containing chromium and nickel, but its key ingredient is copper, which allows it to be heat-treated to achieve exceptional strength. This process gives these flanges a remarkable hardness and tensile strength that far exceeds standard stainless steels, all while maintaining good toughness and a strong defense against corrosion, making them uniquely suited for high-stress environments.
| 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 | |
|---|---|---|---|---|---|---|---|---|---|
| 17-4 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 17-4 PH pipe flanges combine high strength and corrosion resistance, meeting rigorous performance standards. They ensure reliable, leak-proof connections for demanding industrial applications.
Steel 17-4 PH forging facing flanges provide exceptional durability and strength for high-pressure applications. Designed for critical environments, they offer reliable performance with superior corrosion resistance and precise alignment.
ASME B16.5 SS 17-4 PH raised face flanges deliver high strength and corrosion resistance for demanding applications. Their raised face design ensures a secure, leak-proof seal, meeting stringent industry standards.
After production every Stainless Steel 17-4 PH Flange is meticulously tested by our quality control team using advanced destructive and non-destructive techniques to verify its strength and reliability. To ensure safe transit the flanges are securely packed with premium materials. We are committed to delivering orders promptly and efficiently, ensuring a smooth experience for our customers. All required documents are included with the delivery to provide complete transparency and assurance.
The exceptional strength-to-weight ratio and durability of 17-4 PH Flanges make them ideal for critical applications where failure is not an option. You will commonly find them specified in the oil and gas industry for wellhead components, in aerospace for landing gear parts, and in chemical processing for pumps and valves. They are also essential in paper manufacturing and nuclear power facilities, essentially anywhere components must withstand intense pressure, corrosive media, and high temperatures without compromising structural integrity.
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