Stainless pipe fitting,stainless fitting,duplex stainless,31803,32750,32760,we are one of largest sour service stainless fitting supplier according to ISO 10156.
We are Stainless Steel 316 Flanges Manufacturer
What is a Stainless Steel 316 Flanges ?
Type 316 stainless steel flanges contain molybdenum, which provides better overall corrosion resistance than grade 304.SS 316 flanges have higher resistance to pitting and crevice corrosion in chloride environments.316 Flat Face (FF) flanges are primarily used in the family of stainless steel flanges.316 SS Collar Flanges, also known as 18/8 Stainless Steel Flanges, are the most commonly available stainless steel flanges.SS 316 RTJ flanges (Austenitic Stainless Steel) also has outstanding welding characteristics. No post weld annealing is required to weld thin plates. The low carbon helps improve weldability and increases corrosion resistance compared to 304. We are the most versatile and extensive supplier of 316 SS raised face (RF) flanges.
ASTM A182 Stainless Steel 316 Flanges Specifications
| Specifications : | ASTM A182 / ASTM A240 & ASME SA182 / ASME SA240 |
| Dimensions : | ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc. |
| Size : | 1/2″ (15 NB) to 48″ (1200NB) |
| Standard : | ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc. |
| Class / Pressure : | 150#, 300#, 600#, 900#, 1500#, 2500# | PN6, PN10, PN16, PN25, PN40, PN64 etc. |
| Flange Face Type : | Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ) |
| Size： | 1/8″ – 36″ Raised Face or Flat Face |
Stainless Steel 316 Flanges Chemical Composition
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N |
| SS 316 | 0.08 max | 2 max | 1.0 max | 0.045 max | 0.030 max | 16.00 – 18.00 | 2.00 – 3.00 | 11.00 – 14.00 | 67.845 min |
Stainless Steel 316 Flanges Mechanical Properties
| Grade | Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| SS 316 | 8.0 g/cm3 | 1400 °C (2550 °F) | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 35 % |
Stainless Steel 316 Flanges Equivalent Grades
| STANDARD | WERKSTOFF NR. | UNS | JIS | BS | GOST | AFNOR | EN |
| SS 316 | 1.4401 / 1.4436 | S31600 | SUS 316 | 316S31 / 316S33 | – | Z7CND17‐11‐02 | X5CrNiMo17-12-2 / X3CrNiMo17-13-3 |
316 Flanges Standards / Types & Pressure Class
| Standards | Types | Pressure Class |
| ASME/ANSI B 16.5 | Welding Neck Flange, Slip on Flange, Blind Flange, High Hub Blind Flange, Socket Weld Flange, Lap Joint Flange, Threaded Flange, Ring Type Joint Flange | 150, 300, 400, 600, 900, 1500, 2500 |
| ASME/ANSI B 16.47 | Welding Neck Flange, Blind Flange [Series A & B] | 75, 150, 300, 400, 600, 900 |
| ASME/ANSI B 16.36 | Welding Neck Flange, Slip on Flange, Threaded Flange | 300, 400, 600, 900, 1500, 2500 |
| BS 4504[PART 1] | Welding Neck Flange, Hubbed Slip-On Hubbed Threaded, Plate Flange, Loose Plate With Weld On Plate Collar, Blank Flange | PN 2.5 TO PN 400 |
| BS 1560 BOSS | Welding Neck Flange, Socket Welding Flange, Slip-On Flange, Blind Flange, Screwed Boss Flange, Lapped Flange | 150, 300, 400, 600, 900, 1500, 2500 |
| DIN FLANGES | DIN 2527, 2566, 2573, 2576, 2641,2642, 2655, 2656, 2627, 2628, 2629, 2631, 2632, 2633, 2634, 2635, 2636, 2637,2638, 2673 | PN 6 TO PN 100 |
| BS10 | Welding Neck Flange, Plate Slip-On Flange, Screwed Boss Flange, Slip-On Boss Flange, Blind Flange | |
| BS 4504 SEC 3.1 | Welding Neck Flange, Hubbed Slip on Flange, Hubbed Threaded Flange, Lapped Pipe End Flange, Plate Flange, Loose Plate Flange, Loose Plate With Weld Neck Flange, Blank Flange | PN 2.5 TO PN 40 |
