API 6A Type 6B 5000 psi(34.5 MPa) Weld Neck RTJ Flange,API 6A 6B Weld Neck Flange,API Weld neck Flange
C&N is a professional manufacturer of API 6A Type 6B 5000 psi(34.5 MPa) Weld Neck RTJ Flange,API 6BX Weld neck Flange,API weld neck flange
Materials:
- ASTM A105/A105N, ASTM A350 LF2 CL2, A350 LF6 CL2
- ASTM A694 F42, F46, F52, F60, F65, F70
- ASTM A182 F304/304L, F316/316L
- API 45K, 60K, 75K
- AISI 4130 (M), 4140, 4340, 8630(M)
- ASTM A182 F51/UNS S31803, F53/UNS S32750
Sizes, Classes:
Any size and pressure rating
Cladding Materials:
- Stainless Steel 304/304L and 316/316L, 317L, 347, 904L, 410
- Inconel® 600/625 Incoloy® 800/825
- Duplex Stainless Steel SS31803, 2205, SS32760, 2507, 2209
- Hastelloy® C276, C22
- Monel K-500, 400
- Other Special Alloy
API 6A Type 6B 5000 psi(34.5 MPa) Weld Neck RTJ Flange Dimensions and Drawing
API 6A Type 6B 5000 psi(34.5 MPa) Weld Neck RTJ Flange Dimensions and Drawing
| SIZE | FLANGE DIAM. | RTJ DIM. | FLANGE HEIGHT | BOLTING | FLANGE HUB | RING | ||||||||
| NPS | OD | C | K | P | T | Q | LN | BC | N | H | X | HL | JL | R / RX |
| 2-1/16″ | 215 | 3 | 124 | 95.25 | 46.1 | 38.1 | 109.5 | 165.10 | 8 | 26 | 104.8 | 60.3 | 43.7 | 24 |
| 2-9/16″ | 245 | 3 | 137 | 107.95 | 49.3 | 41.3 | 112.7 | 190.50 | 8 | 29 | 123.8 | 73.0 | 54.9 | 27 |
| 3-1/8″ | 265 | 3 | 168 | 136.53 | 55.6 | 47.7 | 125.4 | 203.20 | 8 | 32 | 133.3 | 88.9 | 67.5 | 35 |
| 4-1/16″ | 310 | 3 | 194 | 161.93 | 62.0 | 54.0 | 131.8 | 241.30 | 8 | 35 | 161.9 | 114.3 | 88.1 | 39 |
| 5-1/8″ | 375 | 3 | 229 | 193.68 | 81.0 | 73.1 | 163.5 | 292.10 | 8 | 42 | 196.8 | 141.3 | 110.3 | 44 |
| 7-1/16″ | 395 | 6 | 248 | 211.15 | 92.1 | 82.6 | 181.0 | 317.50 | 12 | 39 | 228.6 | 168.3 | 132.6 | 46 |
| 9″ | 485 | 6 | 318 | 269.88 | 103.2 | 92.1 | 223.8 | 393.70 | 12 | 45 | 292.1 | 219.1 | 173.8 | 50 |
| 11″ | 585 | 6 | 371 | 323.85 | 119.1 | 108.0 | 265.1 | 482.60 | 12 | 51 | 368.3 | 273.1 | 216.7 | 54 |
*All dimensions are in mm unless otherwise specified.
*Tolerances and ring gaskets are according to API 6A.
Materials for API 6A Type 6B 5000 psi(34.5 MPa) Weld Neck RTJ Flange,
API 6A 6B Weld Neck RTJ Flange
API 6A weld neck flange,
API weld neck flange RTJ
1) Alloy Steel: ASTM A182 Grade F1 / F5 / F9 / F11 / F22 / F91
2) Carbon Steel: ASTM A105 / A105N, ASTM A694 Grade F42 / F46 / F52 / F56 / F60 / F65 / F70
ASTM A350 Grade. LF2
3) Stainless Steel: ASTM A182 Grade F304 / F304L, F316/ F316L, F310, F309, F317L, F321, F904L, F347
4) Duplex Stainless Steel: ASTM A182 Grade F44 / F45 / F51 / F53 / F55 / F61 / F60
5) Nickel Alloys: ASTM B472, ASTM B564, ASTM B160
Monel 400, Nickel 200, Inconel 825, Inconel 601, Hastelloy C276, Alloy 31,
Alloy 20, Inconel 625, Inconel 600
6)Copper Alloys: ASTM B61 / B152 / B151 / B62
The difference between ASME/ANSI and API is the fabrication material and a higher rated API operating pressure.
ASME/ANSI flanges are commonly used in industrial process systems handling water, steam, air and gas. API flanges are manufactured for high strength operating refinery systems with products such as oil and explosive gases.
The flange standards API 6A and ASME/ANSI B16.5 have the same dimensions – but the API 6A flanges are rated for higher pressures as indicated below:
| API vs. ASME/ANSI Flanges with the same Dimensions | ||||
|---|---|---|---|---|
| Flange | Pressure Class Rating (psi) |
Nominal Size Range (inches) |
||
| ASME/ANSI B16.5 | API 6A | ASME/ANSI B16.5 | API 6A1) | |
| Weld neck | 600 | 2000 | 1/2 – 24 | 113/16 – 11 |
| 900 | 3000 | |||
| 1500 | 5000 | |||
| Blind and Threaded | 600 | 2000 | 113/16 – 211/4 | |
| 900 | 3000 | 113/16 – 203/4 | ||
| 1500 | 5000 | 113/16 – 11 | ||
1) In the old API standard, flanges ranged from 1 1/2 to 10(20) inches.
- 1 inch = 25.4 mm
