Unimix Metal Corporation is a well-known manufacturer, exporter, and supplier of Stainless Steel 17-4H Flanges. These UNS N08904 Flanges are offered in a variety of diameters, wall thicknesses, and sizes at competitive prices. Grade 904L Flanges contain high amounts of costly elements like molybdenum and nickel.
The austenitic structure provides WerkstoffNr. 1.4539 SS 904L Slip-On Flanges with excellent toughness, even at cryogenic temperatures.
We produce SS 904L Weld Neck Flanges specifically designed to ensure the channel separation perfectly matches the width of the Stainless Steel 17-4H Flanges. High-grade stainless steel is used in making SS 904L Spectacle Blind Flanges, one of the few stainless steels that can resist dilute sulfuric acid environments at up to 35°C (95°F) across the entire concentration range.
Type 17-4 PH Stainless Steel is the most widely used precipitation-hardening stainless steel. Its valuable combination of properties allows designers to enhance product reliability while simplifying fabrication and reducing costs. Type 17-4 PH is a martensitic precipitation-hardening stainless steel offering high strength, good corrosion resistance, and excellent mechanical properties at temperatures up to 600°F (316°C). Its unique attributes make this alloy a practical solution for many design and production challenges.
| Grade | Stainless Steel 17-4H UNS S17400 |
| Standard | ASTM A182, ASME SA182 |
| Dimensions | ANSI / ASME B16.5, B16.47 Series A & B, B.16.48, BS4504, BS10, DIN, EN-1092, MSS SP44 |
| Size | 1/2″ – 48″ (15NB – 1200NB) |
| Class / Pressure Rating | 150 Class, 300 Class, 718 Class, 900 Class, 1500 Class, 2500 Class, PN6, PN10, PN16, PN25, PN40, PN64, etc. |
| Form | Slip on Flanges (SORF), Threaded Flanges, Weld neck Flanges (WNRF), Blind Flanges, Socket weld Flanges, Lap Joint Flanges, Ring Type Joint Flanges, Spectacle Blind Flanges, Spacer Ring Flanges, Long weld Neck Flanges, Nipo Flange, Nipolet Flanges, Plate Flanges, Flat Flange, Orifice Flanges, Forged Flanges |
| Flange Face Type | Flat Face (FF), Raised Face (RF), Ring Type Joint(RTJ) |
| STANDARD | WERKSTOFF NR. | UNS |
| SS 17-4 PH | 1.4542 | S17400 |
| Cr | Mn | Si | Ni | P | S | C | Cu | cb+Ta | |
| MIN | 15 | – | – | 3 | – | – | – | 3 | 0.15 |
| Max | 17.5 | 1 | 1 | 5 | 0.04 | 0.03 | 0.07 | 3.5 | 0.45 |
Type 17-4 PH stainless steel has excellent resistance. It withstands corrosive attack better than any of the standard hardenable stainless steels and is comparable to type 304 in most media. this has been tested in a wide variety of corrosive conditions in the petrochemical, petroleum, paper, dairy and food processing industries, and in applications such as boat shafting.
| ASME | : | SA564, SA693, SA705, Type 630. |
| AMS | : | 5604, 5604, 5622, 5643, 5825. |
| ASTM | : | A564, A693, A705, Type 360 |
| UNS | : | S17400. |
| W. Nr / EN | : | 1.4548 |
Typical Mechanical Properties of Sheets and Strip – Cold Flattened (Annealed)
| UTS (Tensile) Ksi (Mpa) | .02% Yield Strength Ksi (Mpa) | Elongation % in 2” (51mm) | Hardness Rockwell C |
| 160 | 145 | 5 | 35 |
| (1103) | (1000) |
Type 17- 4 PH stainless steel has excellent mechanical properties. For applications requiring high strength and hardness as well as corrosion resistance, Type 17- 4 PH stainless is an outstanding choice, and it is more cost-effective than many high nickel non-ferrous alloys.
• Excellent resistance to corrosion
• Provide toughness in both base metals and welds.
• Well suited to applications that require ease of fabrication and then the addition of strength/hardness for improved reliability
• Aerospace applications
• Chemical processing equipment
• Oil and Petroleum refining equipment
• Food processing equipment
• General metalworking
| SS 904L SORF Flanges | UNS N08904 SS 347H Flanges | WNR. 1.4539 Pipe Flanges |
| SS 904L Blind Flanges | SS 904L Spacer Ring Flanges | UNS N08904 Nipolet Flanges |
| UNS N08904 Ring Type Joint Flanges | SS 904L Nipolet Flanges | SS 904L Flat Flange |
| SS 904L Nipo Flange | SS 904L Long weld Neck Flanges | SS 904L Lap Joint Flanges |
Unimix Metal Corporate, under the leadership and mentoring of intellectual individuals, is currently one of the Manufacturer, Supplier, Stockiest, Importer and Exporter of Stainless Steel , Carbon Steel , Alloy Steel , High Nickel Alloys , Special Alloys , Aluminium Alloys , Copper Nickel , Titanium Alloys , Duplex & Super Duplex , Tantalum , Abrasion Resistant Steel, Hadfield Manganese Steel , Corten Steel , High Tensile , Quenched & Tempered Steel , Armour Steel , etc in Forms of Pipes , Tubes , Plates , Round Bars and Fittings.
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