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Flanges
Stainless Steel Flanges Specifications:
Grades: ASTM A479, A182 - 304, 304L, 304H, 316, 316L, 316H, 316Ti, 309, 310, 317L, 321, 347, 904L, 17-4PH & 400 Series
Dimensions : ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc.
Standard : ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc.
Size : 1/2" (15 NB) to 48" (1200NB)
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)
Grade : 304, 304L, 304H, 310, 310S, 310H, 316, 316L, 316H, 316Ti, 317, 317L, 321, 321H, 347, 347H, 446, 904L
Equivalent Grades of Stainless Steel Flanges
| STANDARD | WERKSTOFF NR. | UNS |
| SS 304 | 1.4301 | S30400 |
| SS 304L | 1.4306 / 1.4307 | S30403 |
| SS 304H | 1.4301 | S30409 |
| SS 310 | 1.4841 | S31000 |
| SS 310S | 1.4845 | S31008 |
| SS 310H | - | S31009 |
| SS 316 | 1.4401 / 1.4436 | S31600 |
| SS 316L | 1.4404 / 1.4435 | S31603 |
| SS 316H | 1.4401 | S31609 |
| SS 316Ti | 1.4571 | S31635 |
| SS 317 | 1.4449 | S31700 |
| SS 317L | 1.4438 | S31703 |
| SS 321 | 1.4541 | S32100 |
| SS 321H | 1.4878 | S32109 |
| SS 347 | 1.4550 | S34700 |
| SS 347H | 1.4961 | S34709 |
| SS 904L | 1.4539 | N08904 |
Chemical Composition of Alloy Steel Fasteners
| Grade | C | Mn | Si | S | P | Cr | Mo |
| F1 | 0.28 | 0.60 - 0.90 | 0.15 - 0.30 | 0.045 | 0.045 | - | 0.44-0.65 |
| F5 | 0.15 | 0.3 - 0.6 | 0.5 | 0.03 | 0.03 | 4 - 6 | 0.044 - 0.65 |
| F9 | 0.15 | 0.3 - 0.6 | 0.5 - 1 | 0.03 | 0.03 | 8 - 10 | 0.9 - 1.1 |
| F12 | 0.05-0.15 | 0.30-0.60 | 0.50 | 0.045 | 0.045 | - | 0.44-0.65 |
| F91 | 0.08 - 0.12 | 0.3 - 0.6 | 0.5 | 0.01 | 0.02 | 8.5 - 9.5 | 0.85 - 1.05 |