ASTM A105 Flanges are under the ASTM A105 specification for flanges and piping components meant for high temperature and ambient temperature services. R.C. Metal Corporation is a leading supplier and manufacturer of the Carbon Steel A105 Pipe Flanges. The material of the flanges is strong carbon steel with 250MPa minimum yield strength and 585MPa minimum tensile strength. The carbon steel Flange WNRF A105 is also hard and tough so that it could be used with high wear and tear applications. The wall thickness and the schedules of the ASME SA105 flange vary.

The wall thicknesses range from 1.6mm to 7.9mm with the nominal bore sizes ranging from 1/16 inches to 5/16 inches. The ASTM A105 Slip on flange is used with seamless pipes. They allow the pipes to slip onto them for better placement of the connection. The seamless flanges are also more dimensionally accurate than the welded flanges. The Carbon Steel A105 Flanges can be welded. They come in forged conditions. They can also be annealed for further strength.

There are different types of the flanges. The ASTM A105 blind flange is used to close a connection. It is added at the end of a pipe line. There are different types of the blind flanges as well. The ASTM A105 flange material has carbon, manganese, phosphorus, sulfur, silicon, copper, nickel, chromium, molybdenum and vanadium in the composition. The Weld neck flange ASTM A105 is one of the types that comes with a welded neck. The welded neck allows for maximum grip on the pipes. Please feel free to contact us for the different types, specifications and dimensions of flanges such as the ASTM A105 Class 300 flange and the pricing.
| Specs | ASTM A105/ ASME SA105 |
|---|---|
| Pressure Classes | Cl 150, Class 300, Cl. 400, 600, Class 900, Cl 1500 and 2500 |
| Standards | ASME | BS | DIN | ANSI | GOST | EN Flange |
| Size Ranges | From 1/2 inch (i.e. 15 NB) upto 48 inch (i.e. 1200NB) |
| Flange Face Type | FF, RF, LMF, SMF, RTJ, LJF. |
| JIS Standards | 5 K, 10K, 16K, 20 K, 30K, 40K, 63 K |
| UNI/ DIN / EN Standard | 6Bar, 10 Bar, 16Bar, 25 Bar, 40Bar |
| Grade | Yield Strength (0.2% offset),minimum, ksi [MPa] | Elongation in 2 in, or 50 mm, minimeter % | Tensile Strength, min, ksi [MPa] |
|---|---|---|---|
| F42 | 42 [290] | 20 | 60 [415] |
| F46 | 46 [315] | 20 | 60 [415] |
| F48 | 48 [330] | 20 | 62 [420] |
| F50 | 50 [345] | 20 | 64 [440] |
| F52 | 52 [360] | 20 | 66 [455] |
| F56 | 56 [385] | 20 | 68 [470] |
| F60 | 60 [415] | 20 | 75 [515] |
| F65 | 65 [450] | 20 | 77 [530] |
| F70 | 70 [485] | 18 | 82 [565] |
| N.P.S. | Class 150 | Class 300 | Class 600 | Class 900 | Class 1500 | Class 2500 | ||||||||||||
| WN | BLD | SO | SO | WN | BLD | SO | WN | BLD | WN | SO | BLD | SO | WN | BLD | SO | WN | BLD | |
| 1/2" | 2 | 1 | 1 | 1 | 2 | 1 | 2 | 2 | 2 | 1500 Class Weight | 4 | 5 | 4 | 7 | 7 | 7 | ||
| 3/4" | 2 | 2 | 2 | 3 | 3 | 3 | 3 | 4 | 3 | 1500 Class Weight | 5 | 6 | 6 | 8 | 8 | 8 | ||
| 1" | 3 | 2 | 2 | 3 | 4 | 3 | 4 | 4 | 4 | 1500 Class Weight | 8 | 9 | 8 | 11 | 12 | 11 | ||
| 1 1/2" | 4 | 3 | 3 | 6 | 7 | 6 | 7 | 8 | 8 | 1500 Class Weight | 12 | 13 | 13 | 22 | 25 | 23 | ||
| 2" | 6 | 5 | 5 | 7 | 9 | 8 | 9 | 12 | 10 | 1500 Class Weight | 25 | 25 | 25 | 37 | 42 | 39 | ||
| 2 1/2" | 8 | 7 | 7 | 10 | 12 | 12 | 13 | 18 | 15 | 1500 Class Weight | 36 | 36 | 35 | 55 | 52 | 56 | ||
| 3" | 10 | 9 | 8 | 13 | 15 | 16 | 16 | 23 | 20 | 31 | 26 | 29 | 48 | 48 | 48 | 83 | 94 | 86 |
| 4" | 15 | 17 | 13 | 22 | 25 | 27 | 37 | 42 | 41 | 53 | 53 | 54 | 73 | 73 | 73 | 125 | 145 | 130 |
| 5" | 19 | 20 | 15 | 28 | 32 | 35 | 63 | 68 | 68 | 86 | 83 | 87 | 130 | 130 | 140 | 210 | 245 | 225 |
| 6" | 24 | 26 | 19 | 39 | 42 | 50 | 80 | 81 | 86 | 110 | 110 | 115 | 165 | 165 | 160 | 325 | 380 | 345 |
| 8" | 39 | 45 | 30 | 58 | 67 | 81 | 115 | 120 | 140 | 175 | 170 | 200 | 260 | 275 | 300 | 485 | 580 | 530 |
| 10" | 52 | 70 | 43 | 81 | 91 | 124 | 170 | 190 | 230 | 260 | 245 | 290 | 435 | 455 | 510 | 930 | 1075 | 1025 |
| 12" | 80 | 110 | 64 | 115 | 140 | 185 | 200 | 225 | 295 | 325 | 325 | 415 | 580 | 690 | 690 | 1100 | 1525 | 1300 |
| 14" | 110 | 140 | 90 | 165 | 180 | 250 | 230 | 280 | 355 | 400 | 400 | 520 | NA | 940 | 975 | NA | NA | NA |
| 16" | 140 | 180 | 98 | 190 | 250 | 295 | 330 | 390 | 495 | 495 | 425 | 600 | NA | 1250 | 1300 | NA | NA | NA |
| 18" | 150 | 220 | 130 | 250 | 320 | 395 | 400 | 475 | 630 | 680 | 600 | 850 | NA | 1625 | 1750 | NA | NA | NA |
| 20" | 180 | 285 | 165 | 315 | 400 | 505 | 510 | 590 | 810 | 830 | 730 | 1075 | NA | 2050 | 2225 | NA | NA | NA |
| 22" | 225 | 355 | 185 | 370 | 465 | 640 | 590 | 720 | 1000 | NA | NA | NA | NA | NA | NA | NA | NA | NA |
| 24" | 260 | 430 | 220 | 475 | 580 | 790 | 730 | 830 | 1250 | 1500 | 1400 | 2025 | NA | 3325 | 3625 | NA | NA | NA |
| Product | Price |
| Carbon Steel ASTM A105 6" DN150 ANSI B16.5 Class 150 Slip On Flanges | $0.87 - $93.70/ Piece |
| 150# ASTM A105 ANSI B16.5 Carbon Steel RF Plate Flat Flange | $0.57 - $0.92/ Piece |
| ASME B16.5 ASTM A105 Pipe Fitting Threaded Flange | $229.80 - $478.30/ Ton |
| 24" Inch ASTM B16.5 A105 RF Paddle Blind Flange | $09.70 - $247.17/ Piece |
| A105 Sch40 Carbon Steel Welding Neck Socket Weld Flanges | $0.29 - $0.71/ Kilogram |









| Density (lb / cu. in.) | 0.284 |
| Mean Coeff Thermal Expansion | 6.7 |
| Specific Gravity | 7.9 |
| Modulus of Elasticity Tension | 30 |
| Specific Heat (Btu/lb/Deg F - [32-212 Deg F]) | 0.107 |
| Melting Point (Deg F) | 2740 |
| Modulus of Elasticity Torsion | 11 |
| Thermal Conductivity | 360 |
| Reduction of Area, min. | Tensile Strength min. | Yield Strength min. | Elongation min. | Hardness | ||
|---|---|---|---|---|---|---|
| % | MPa | ksi | MPa | ksi | % | HBW |
| 30 | 485 | 70 | 250 | 36 | 22 | 137-187 |
| Elements | Composition, % |
| Copper [Cu] | ≤0.40 |
| Carbon [C] | ≤0.35 |
| Silicon [Si] | 0.10-0.35 |
| Manganese [Mn] | 0.60-1.05 |
| Chromium [Cr] | ≤0.30 |
| Phosphorus [P] | ≤0.35 |
| Molybdenum [Mo] | ≤0.12 |
| Sulfur [S] | ≤0.40 |
| Nickel [Ni] | ≤0.40 |
| Vanadium [V] | ≤0.08 |
| Size in inches | Outer Dia. | Size in millimeter | RF Height | Flange Thick. | RF Diam. | PCD | Bolt Size UNC | No of Bolts | Machine Bolt Lengths | Hole Size | RF Stud Length | ISO Stud Size | Weight in kg |
| A | D | B | C | E | |||||||||
| 1/2 | 90 | 15 | 2 | 9.6 | 34.9 | 60.3 | 1/2 | 4 | 50 | 5/8 | 55 | M14 | 0.9 |
| 3/4 | 100 | 20 | 2 | 11.2 | 42.9 | 69.9 | 1/2 | 4 | 50 | 5/8 | 65 | M14 | 0.9 |
| 1 | 110 | 25 | 2 | 12.7 | 50.8 | 79.4 | 1/2 | 4 | 55 | 5/8 | 65 | M14 | 0.9 |
| 1 1/4 | 115 | 32 | 2 | 14.3 | 63.5 | 88.9 | 1/2 | 4 | 55 | 5/8 | 70 | M14 | 1.4 |
| 1 1/2 | 125 | 40 | 2 | 15.9 | 73 | 98.4 | 1/2 | 4 | 65 | 5/8 | 70 | M14 | 1.8 |
| 2 | 150 | 50 | 2 | 17.5 | 92.1 | 120.7 | 5/8 | 4 | 70 | 3/4 | 85 | M16 | 2.3 |
| 2 1/2 | 180 | 65 | 2 | 20.7 | 104.8 | 139.7 | 5/8 | 4 | 75 | 3/4 | 90 | M16 | 3.2 |
| 3 | 190 | 80 | 2 | 22.3 | 127 | 152.4 | 5/8 | 4 | 75 | 3/4 | 90 | M16 | 4.1 |
| 3 1/2 | 215 | 90 | 2 | 22.3 | 139.7 | 177.8 | 5/8 | 8 | 75 | 3/4 | 90 | M16 | 5.9 |
| 4 | 230 | 100 | 2 | 22.3 | 157.2 | 190.5 | 5/8 | 8 | 75 | 3/4 | 90 | M16 | 7.7 |
| 5 | 255 | 125 | 2 | 22.3 | 185.7 | 215.9 | 3/4 | 8 | 85 | 7/8 | 95 | M20 | 9.1 |
| 6 | 280 | 150 | 2 | 23.9 | 215.9 | 241.3 | 3/4 | 8 | 85 | 7/8 | 100 | M20 | 11.8 |
| 8 | 345 | 200 | 2 | 27 | 269.9 | 298.5 | 3/4 | 8 | 90 | 7/8 | 110 | M20 | 20.5 |
| 10 | 405 | 250 | 2 | 28.6 | 323.8 | 362 | 7/8 | 12 | 100 | 1 | 115 | M24 | 32 |
| 12 | 485 | 300 | 2 | 30.2 | 381 | 431.8 | 7/8 | 12 | 100 | 1 | 120 | M24 | 50 |
| 14 | 535 | 350 | 2 | 33.4 | 412.8 | 476.3 | 1 | 12 | 115 | 1 1/8 | 135 | M27 | 64 |
| 16 | 595 | 400 | 2 | 35 | 469.9 | 539.8 | 1 | 16 | 115 | 1 1/8 | 135 | M27 | 82 |
| 18 | 635 | 450 | 2 | 38.1 | 533.4 | 577.9 | 1 1/8 | 16 | 125 | 1 1/4 | 145 | M30 | 100 |
| 20 | 700 | 500 | 2 | 41.3 | 584.2 | 635 | 1 1/8 | 20 | 140 | 1 1/4 | 160 | M30 | 130 |
| 24 | 815 | 600 | 2 | 46.1 | 692.2 | 749.3 | 1 1/4 | 20 | 150 | 1 3/8 | 170 | M33 | 196 |

