Stainless Steel 304 Flange Specification
| Standards | ANSI/ASME B16.5, B16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, GOST Flange, ASME/ANSI B16.5/16.36/16.47A/16.47B, MSS S44, ISO70051, JISB2220, BS1560-3.1, API7S-15, API7S-43, API605, EN1092 |
|---|---|
| Size Chart | 1/2" (15 NB) to 48" (1200NB) DN10~DN5000 |
| Pressure Rating | Class 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS |
| Pressure Calculation in DIN | 6Bar 10Bar 16Bar 25Bar 40Bar / PN6 PN10 PN16 PN25 PN40, PN64 |
| UNI | 6Bar 10Bar 16Bar 25Bar 40Bar |
| EN | 6Bar 10Bar 16Bar 25Bar 40Bar |
| Coating | Oil Black Paint, Anti-rust Paint, Zinc Plated, Yellow Transparent, Cold and Hot Dip Galvanized |
| Most common types | Forged / Threaded / Screwed / Plate |
| Test Certificates | EN 10204/3.1B Raw Materials Certificate 100% Radiography Test Report Third Party Inspection Report, etc |
| Production Technique | Forged, Heat treated and machined |
| Connect Type/ Flange Face Type | Raised Face (RF), Ring Type Joint (RTJ), Flat Face (FF), Large Male-Female (LMF), Lap-Joint Face (LJF), Small Male-Female (SMF), Small Tongue, Large Tongue & Groove, Groove |
| Special design |
As per your drawing AS, ANSI, BS, DIN and JIS |
| Test | Direct-reading Spectrograph, Hydrostatic testing machine, X-ray detector, UI trasonic flaw detector, Magnetic particle detector |
| Equipment | Press machine, Bending machine, Pushing Machine, electric bevelling machine, Sand-blasting machine etc |
| Material Test Certificates (MTC) as per EN 10204 3.1 and EN 10204 3.2, Test Certificates certifying NACE MR0103, NACE MR0175 | |
Types of Flanges Available
Stainless Steel 304 Slip on Flange
Stainless Steel 304 Blind Flange
Stainless Steel 304 Threaded Flange
Stainless Steel 304 Lap Joint Flange
Stainless Steel 304 Socket Weld Flange
ASME B16.47 Series A Class 150 Flange Dimensions
| NPS | (OD) | Minimum Thickness WNF
(tf) |
Minimum Thickness Blind
(tf) |
Length Through Of Hub
(Y) |
Hub Diameter Base [Note2]
(X) |
Hub Diameter Top
(A) |
RF Diameter
(R) |
Drilling – Bolt Circle Diameter | Drilling – Number of Bolt Holes | Drilling – Diameter of Bolt Hole | Diameter of Bolt | Minimum Fillet Radius
(r1) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 26 | 34.25 | 2.63 | 2.63 | 4.69 | 26.62 | 26.00 | 29.50 | 31.75 | 24 | 13\8 | 11\4 | 0.38 |
| 28 | 36.50 | 2.75 | 2.75 | 4.88 | 28.62 | 28.00 | 31.50 | 34.00 | 28 | 13⁄8 | 11⁄4 | 0.44 |
| 30 | 38.75 | 2.88 | 2.88 | 5.32 | 30.75 | 30.00 | 33.75 | 36.00 | 28 | 13⁄8 | 11⁄4 | 0.44 |
| 32 | 41.75 | 3.13 | 3.13 | 5.63 | 32.75 | 32.00 | 36.00 | 38.50 | 28 | 15⁄8 | 11⁄2 | 0.44 |
| 34 | 43.75 | 3.19 | 3.19 | 5.82 | 34.75 | 34.00 | 38.00 | 40.50 | 32 | 15⁄8 | 11⁄2 | 0.50 |
| 36 | 46.00 | 3.50 | 3.50 | 6.13 | 36.75 | 36.00 | 40.25 | 42.75 | 32 | 15⁄8 | 11⁄2 | 0.50 |
| 38 | 48.75 | 3.38 | 3.38 | 6.13 | 39.00 | 38.00 | 42.25 | 45.25 | 32 | 15⁄8 | 11⁄2 | 0.50 |
| 40 | 50.75 | 3.50 | 3.50 | 6.38 | 41.00 | 40.00 | 44.25 | 47.25 | 36 | 15⁄8 | 11⁄2 | 0.50 |
| 42 | 53.00 | 3.75 | 3.75 | 6.69 | 43.00 | 42.00 | 47.00 | 49.50 | 36 | 15⁄8 | 11⁄2 | 0.50 |
| 44 | 55.25 | 3.94 | 3.94 | 6.94 | 45.00 | 44.00 | 49.00 | 51.75 | 40 | 15⁄8 | 11⁄2 | 0.50 |
| 46 | 57.25 | 4.00 | 4.00 | 7.25 | 47.12 | 46.00 | 51.00 | 53.75 | 40 | 15⁄8 | 11⁄2 | 0.50 |
| 48 | 59.50 | 4.19 | 4.19 | 7.50 | 49.12 | 48.00 | 53.50 | 56.00 | 44 | 15⁄8 | 11⁄2 | 0.50 |
| 50 | 61.75 | 4.32 | 4.32 | 7.94 | 51.25 | 50.00 | 55.50 | 58.25 | 44 | 17⁄8 | 13⁄4 | 0.50 |
| 52 | 64.00 | 4.50 | 4.50 | 8.19 | 53.25 | 52.00 | 57.50 | 60.50 | 44 | 17⁄8 | 13⁄4 | 0.50 |
| 54 | 66.25 | 4.69 | 4.69 | 8.44 | 55.25 | 54.00 | 59.50 | 62.75 | 44 | 17⁄8 | 13⁄4 | 0.50 |
| 56 | 68.75 | 4.82 | 4.82 | 8.94 | 57.38 | 56.00 | 62.00 | 65.00 | 48 | 17⁄8 | 13⁄4 | 0.50 |
| 58 | 71.00 | 5.00 | 5.00 | 9.19 | 59.38 | 58.00 | 64.00 | 67.25 | 48 | 17⁄8 | 13⁄4 | 0.50 |
| 60 | 73.00 | 5.13 | 5.13 | 9.38 | 61.38 | 60.00 | 66.00 | 69.25 | 52 | 17⁄8 | 13⁄4 | 0.50 |
ASME B16.47 Series A Class 300 Flange Dimensions
| 26 | 38.25 | 3.07 | 3.25 | 7.19 | 28.38 | 26.00 | 29.50 | 34.50 | 28 | 13⁄4 | 15⁄8 | 0.38 |
| 28 | 40.75 | 3.32 | 3.50 | 7.69 | 30.50 | 28.00 | 31.50 | 37.00 | 28 | 13⁄4 | 15⁄8 | 0.44 |
| 30 | 43.00 | 3.57 | 3.69 | 8.19 | 32.56 | 30.00 | 33.75 | 39.25 | 28 | 17⁄8 | 13⁄4 | 0.44 |
| 32 | 45.25 | 3.82 | 3.88 | 8.69 | 34.69 | 32.00 | 36.00 | 41.50 | 28 | 2 | 17⁄8 | 0.44 |
| 34 | 47.50 | 3.94 | 4.07 | 9.07 | 36.88 | 34.00 | 38.00 | 43.50 | 28 | 2 | 17⁄8 | 0.50 |
| 36 | 50.00 | 4.07 | 4.32 | 9.44 | 39.00 | 36.00 | 40.25 | 46.00 | 32 | 21⁄8 | 2 | 0.50 |
| 38 | 46.00 | 4.19 | 4.19 | 7.06 | 39.12 | 38.00 | 40.50 | 43.00 | 32 | 15⁄8 | 11⁄2 | 0.50 |
| 40 | 48.75 | 4.44 | 4.44 | 7.56 | 41.25 | 40.00 | 42.75 | 45.50 | 32 | 13⁄4 | 15⁄8 | 0.50 |
| 42 | 50.75 | 4.63 | 4.63 | 7.82 | 43.25 | 42.00 | 44.75 | 47.50 | 32 | 13⁄4 | 15⁄8 | 0.50 |
| 44 | 53.25 | 4.82 | 4.82 | 8.06 | 45.25 | 44.00 | 47.00 | 49.75 | 32 | 17⁄8 | 13⁄4 | 0.50 |
| 46 | 55.75 | 5.00 | 5.00 | 8.44 | 47.38 | 46.00 | 49.00 | 52.00 | 28 | 2 | 17⁄8 | 0.50 |
| 48 | 57.75 | 5.19 | 5.19 | 8.75 | 49.38 | 48.00 | 51.25 | 54.00 | 32 | 2 | 17⁄8 | 0.50 |
| 50 | 60.25 | 5.44 | 5.44 | 9.07 | 51.38 | 50.00 | 53.50 | 56.25 | 32 | 21⁄8 | 2 | 0.50 |
| 52 | 62.25 | 5.63 | 5.63 | 9.32 | 53.38 | 52.00 | 55.50 | 58.25 | 32 | 21⁄8 | 2 | 0.50 |
| 54 | 65.25 | 5.94 | 5.94 | 9.88 | 55.50 | 54.00 | 57.75 | 61.00 | 28 | 23⁄8 | 21⁄4 | 0.50 |
| 56 | 67.25 | 6.00 | 6.00 | 10.19 | 57.62 | 56.00 | 59.75 | 63.00 | 28 | 23⁄8 | 21⁄4 | 0.50 |
| 58 | 69.25 | 6.19 | 6.19 | 10.44 | 59.62 | 58.00 | 62.00 | 65.00 | 32 | 23⁄8 | 21⁄4 | 0.50 |
| 60 | 71.25 | 6.38 | 6.38 | 10.69 | 61.62 | 60.00 | 64.00 | 67.00 | 32 | 23⁄8 | 21⁄4 | 0.50 |
Flanges Applications Industries
- Oil & Gas
- Petrochemical
- Power Generation
- Marine
- Aerospace
- Pharmaceutical
- Food Processing
- Water Treatment
