
4H Stainless Steel Flanges are high-temperature resistant flanges that are mostly utilized in different applications such as gas turbines, furnace components, and heat exchangers. They are known for their outstanding corrosion resistance and high strength at high temperature environment. The flanges are utilized for connecting pipes and other equipment in high-temperature atmosphere where resistance to rust & scaling, and superior strength are critical. In addition, the presented Stainless Steel Flanges are ideal to use in industries like chemical processing, oil and gas, and power generation, as well as in the construction of boilers, furnaces, and other high-temperature equipment.
STAINLESS STEEL 17-4H FLANGES SPECIFICATIONS
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 |
CHEMICAL COMPOSITION
| 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 |
SPECIFICATIONS EQUIVALENTS :
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 |
MECHANICAL PROPERTIES
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) |
OTHER TYPES OF SS 904L FLANGES FITTINGS
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 |