What are the some causes of carbon steel flanges?
Some common causes of cs flange failures are corrosion, improper installation, material defects, overloading, fatigue, thermal cycling and stress concentrations. Corrosion can occur in aggressive environments, improper installation can lead to leakages and material defects can compromise the carbon steel pipe flanges integrity. Overloading, thermal cycling, and stress concentrations can cause fatigue and mechanical failure over time.
9 Benefits of Carbon Steel flanges
| Material | Sizes | Types |
|---|---|---|
| Carbon steel |
|
|
| Pressure Rating | DIN Pressure | Origin |
| Class 150 to Class 2500 | PN 6 to PN64 | Indian / Japan / USA / Korean |
| Coating | Face Types | ASME |
|
|
|
| Product | Price |
| CARBON STEEL BLRTJ FLANGE - SA105 SIZE(MM): 150 X 0.00 X 37.95 | US $ 5.17 per kg |
| CARBON STEEL A350 LF2 FLANGES: WN RF, 150#, CL1 STD | US $ 2.10 per kg |
| CS ASTM A105 SLIP ON FLANGE 10, 150ANSI | US $ 197.79 per Piece |
| A105 CARBON STEEL FLANGES - BLIND, RF, CL150, DN80 | US $ 1.65 per kg |
| 1-1/2 X 150 SCH80 CARBON STEEL A105 SOCKET WELD FLANGE RF | US $ 10.89 per Piece |
Carbon steel Forged Flange
CS Slip on Flange
Low carbon steel Blind Flange
High carbon steel Weld Neck Flanges
Low CS Plate Flange
High CS Lap Joint Flange
CS Threaded Flange
High CS Ring and Spacer
Low CS Spectacle Blind Flange
Low carbon steel Long weld neck flange
High carbon steel Reducing Flange
Carbon steel Expander Flange
High CS Socket Weld Flange
CS RTJ Flanges
Carbon steel Ring Joint Flanges
High carbon steel BLRF Flanges
Low carbon steel SORF Flanges
Low CS Raised Face Flange
Low carbon steel Tongue and groove flange
High CS WNRF Flanges
Carbon steel SWRF Flanges
Low CS Flat Face Flanges
CS Pipe Flanges
High carbon steel Exhaust flanges
Class 150 Carbon steel flanges
Class 300 High CS flange
Class 600 Low carbon steel pipe flanges
Class 900 CS flanges
Class 1500 Low CS plate flange
Class 2500 High carbon steel flanges
| Temperature °F | Class 150 | Class 600 | Class 300 | Class 1500 | Class 900 | Class 400 | Class 2500 |
| -20 to 100 | 275 | 1440 | 720 | 3600 | 2160 | 960 | 6000 |
| 300 | 205 | 1080 | 540 | 2700 | 1620 | 720 | 4500 |
| 200 | 230 | 1200 | 600 | 3000 | 1800 | 800 | 5000 |
| 400 | 190 | 995 | 495 | 2485 | 1490 | 660 | 4140 |
| 600 | 140 | 875 | 435 | 2185 | 1310 | 580 | 3640 |
| 650 | 125 | 860 | 430 | 2150 | 1290 | 575 | 3580 |
| 500 | 170 | 930 | 465 | 2330 | 1395 | 620 | 3880 |
| 700 | 110 | 850 | 425 | 2125 | 1275 | 565 | 3540 |
| 750 | 95 | 830 | 415 | 2075 | 1245 | 555 | 3460 |
| 850 | 65 | 790 | 395 | 1980 | 1190 | 530 | 3300 |
| 800 | 80 | 805 | 405 | 2015 | 1210 | 540 | 3360 |
| 900 | 50 | 780 | 390 | 1945 | 1165 | 520 | 3240 |
| 950 | 35 | 765 | 380 | 1910 | 1145 | 510 | 3180 |
| 1000 | 20 | 640 | 320 | 1605 | 965 | 430 | 2675 |
| 1100 | 20 | 515 | 255 | 1285 | 770 | 345 | 2145 |
| 1150 | 20 | 400 | 200 | 995 | 595 | 265 | 1655 |
| 1050 | 20 | 615 | 310 | 1545 | 925 | 410 | 2570 |
| 1200 | 20 | 310 | 155 | 770 | 465 | 205 | 1285 |
| 1250 | 20 | 225 | 115 | 565 | 340 | 150 | 945 |
| 1300 | 20 | 170 | 85 | 430 | 255 | 115 | 715 |
| 1400 | 20 | 95 | 50 | 240 | 145 | 65 | 400 |
| 1350 | 20 | 125 | 60 | 310 | 185 | 80 | 515 |
| 1450 | 15 | 70 | 35 | 170 | 105 | 45 | 285 |
| 1500 | 10 | 55 | 25 | 135 | 80 | 35 | 230 |
| Size in Inch | Size in mm | RF Stud Length | No of Bolts | Machine Bolt Length | Bolt Size UNC | ISO Stud Size |
|---|---|---|---|---|---|---|
| 1/2 | 15 | 55 | 4 | 50 | 1/2 | M14 |
| 3/4 | 20 | 65 | 4 | 50 | 1/2 | M14 |
| 1 | 25 | 65 | 4 | 55 | 1/2 | M14 |
| 1 1/4 | 32 | 70 | 4 | 55 | 1/2 | M14 |
| 1 1/2 | 40 | 70 | 4 | 65 | 1/2 | M14 |
| 2 | 50 | 85 | 4 | 70 | 5/8 | M16 |
| 2 1/2 | 65 | 90 | 4 | 75 | 5/8 | M16 |
| 3 | 80 | 90 | 4 | 75 | 5/8 | M16 |
| 3 1/2 | 90 | 90 | 8 | 75 | 5/8 | M16 |
| 4 | 100 | 90 | 8 | 75 | 5/8 | M16 |
| 5 | 125 | 95 | 8 | 85 | 3/4 | M20 |
| 6 | 150 | 100 | 8 | 85 | 3/4 | M20 |
| 8 | 200 | 110 | 8 | 90 | 3/4 | M20 |
| 10 | 250 | 115 | 12 | 100 | 7/8 | M24 |
| 12 | 300 | 120 | 12 | 100 | 7/8 | M24 |
| 14 | 350 | 135 | 12 | 115 | 1 | M27 |
| 16 | 400 | 135 | 16 | 115 | 1 | M27 |
| 18 | 450 | 145 | 16 | 125 | 1 1/8 | M30 |
| 20 | 500 | 160 | 20 | 140 | 1 1/8 | M30 |
| 24 | 600 | 170 | 20 | 150 | 1 1/4 | M33 |
| Nominal Pipe Size |
OD of Flange (D) |
Dia of Bolt Holes (L) |
Thickness of Flange (B) |
Dia of Bolt Circle (K) |
Dia of Bolt (inches) |
Dia of Raised Face (G) |
No of Bolt Holes |
Approx Weight (kg) |
|---|---|---|---|---|---|---|---|---|
| 1/2 | 88.9 | 15.7 | 11.2 | 60.5 | 1/2 | 35.1 | 4 | 0.5 |
| 3/4 | 98.6 | 15.7 | 12.7 | 69.9 | 1/2 | 42.9 | 4 | 1 |
| 1 | 108 | 15.7 | 14.2 | 79.2 | 1/2 | 50.8 | 4 | 1 |
| 1-1/4 | 117.3 | 15.7 | 15.7 | 88.9 | 1/2 | 63.5 | 4 | 1 |
| 1-1/2 | 127 | 15.7 | 17.5 | 98.6 | 1/2 | 73.2 | 4 | 2 |
| 2 | 152.4 | 19.1 | 19.1 | 120.7 | 5/8 | 91.9 | 4 | 2 |
| 2-1/2 | 177.8 | 19.1 | 22.4 | 139.7 | 5/8 | 104.6 | 4 | 3 |
| 3 | 190.5 | 19.1 | 23.9 | 152.4 | 5/8 | 127 | 4 | 4 |
| 3-1/2 | 215.9 | 19.1 | 23.9 | 177.8 | 5/8 | 139.7 | 8 | 6 |
| 4 | 228.6 | 19.1 | 23.9 | 190.5 | 5/8 | 157.2 | 8 | 8 |
| 5 | 254 | 22.4 | 23.9 | 215.9 | 3/4 | 185.7 | 8 | 9 |
| 6 | 279.4 | 22.4 | 25.4 | 241.3 | 3/4 | 215.9 | 8 | 12 |
| 8 | 342.9 | 22.4 | 28.4 | 298.5 | 3/4 | 269.7 | 8 | 20 |
| 10 | 406.4 | 25.4 | 30.2 | 362 | 7/8 | 323.9 | 12 | 32 |
| 12 | 482.6 | 25.4 | 31.8 | 431.8 | 7/8 | 381 | 12 | 50 |
| 14 | 533.4 | 28.4 | 35.1 | 476.3 | 1 | 412.8 | 12 | 64 |
| 16 | 596.9 | 28.4 | 36.6 | 539.8 | 1 | 469.9 | 16 | 82 |
| 18 | 635 | 31.8 | 39.6 | 577.9 | 1-1/8 | 533.4 | 16 | 100 |
| 20 | 698.5 | 31.8 | 42.9 | 635 | 1-1/8 | 584.2 | 20 | 129 |
| 24 | 812.8 | 35.1 | 47.8 | 749.3 | 1-1/4 | 692.2 | 20 | 195 |
| NPS (Nominal Pipe Size) | NPT (Threaded) | BLRF (Blind) | WRNR (Weld Neck) | SORF (Slip On) | SWRF (Socket Weld) | Loose (Lap Joint) |
|---|---|---|---|---|---|---|
| ½ | 1 | 2 | 2 | 1 | 2 | 1 |
| ¾ | 2 | 2 | 2 | 2 | 2 | 2 |
| 1 | 2 | 2 | 3 | 2 | 2 | 2 |
| 1¼ | 3 | 3 | 3 | 3 | 3 | 3 |
| 1½ | 3 | 4 | 4 | 3 | 3 | 3 |
| 2 | 5 | 5 | 6 | 5 | 5 | 5 |
| 2½ | 8 | 7 | 10 | 8 | 8 | 8 |
| 3 | 9 | 9 | 11.5 | 9 | 9 | 9 |
| 3½ | 12 | 13 | 12 | 11 | 11 | 11 |
| 4 | 13 | 17 | 16.5 | 13 | 13 | 13 |
| 5 | 15 | 20 | 21 | 15 | 15 | 15 |
| 6 | 19 | 27 | 26 | 19 | 19 | 19 |
| 8 | 30 | 47 | 42 | 30 | 30 | 30 |
| 10 | 43 | 70 | 54 | 43 | 43 | 43 |
| 12 | 64 | 123 | 88 | 64 | 64 | 64 |
| 14 | 90 | 140 | 114 | 90 | 90 | 105 |
| 16 | 98 | 180 | 140 | 106 | 98 | 140 |
| 18 | 130 | 220 | 165 | 130 | 130 | 160 |
| 20 | 165 | 285 | 197 | 165 | 165 | 195 |
| 22 | 185 | 355 | 225 | 185 | 185 | 245 |
| 24 | 220 | 430 | 268 | 220 | 220 | 275 |
| Elements | Composition, % |
| Phosphorus | ≤0.35 |
| Carbon | ≤0.35 |
| Sulfur | ≤0.40 |
| Manganese | 0.60-1.05 |
| Silicon | 0.10-0.35 |
| Nickel | ≤0.40 |
| Chromium | ≤0.30 |
| Copper | ≤0.40 |
| Molybdenum | ≤0.12 |
| Vanadium | ≤0.08 |
| Minimum Tensile Strength | Minimum Reduction of Area | Hardness | Minimum Elongation | Minimum Yield Strength | ||
|---|---|---|---|---|---|---|
| MPa | ksi | % | HBW | % | MPa | ksi |
| 485 | 70 | 30 | 137-187 | 22 | 250 | 36 |
| Density | 0.284 lb / cu. in. |
| Modulus of Elasticity Tension | 30 |
| Modulus of Elasticity Torsion | 11 |
| Thermal Conductivity | 360 |
| Specific Gravity | 7.9 |
| Mean Coefficient Thermal Expansion | 6.7 |
| Melting Point (Deg F) | 2740 |
| Cast | Plate/Cut | Forged | |
| Cost | Better | Best | Good |
| Strength | Better | Good | Best |
| Tolerances | Best | Better | Good |
| Limiting Material Waste | Better | Good | Best |
| Variety of Material & Sizes | Best | Good | Better |
| STANDARD | STNDARD CODE | TYPE | PRESSURE RATE | SIZE |
| American standard | ANSI B16.5 | SW, WN, BL, SO, TH, LWN | Class 150, 300, 600, 900, 1500, 2500 | 1/2"-24" |
| ANSI B16.36 | WN, SO, TH | Class 150,300,600, 900,1500,2500 | 1/2"-24" | |
| AWWA | RING(HUB) flange | Class B D E F | 3"-144" | |
| ASEM B16.47 | WN, BL | Class 150,300,600,900 | 26"-60" | |
| British standard | BS4504 | WN, SO, PL, BL | PN6 to PN40 | DN10-DN2000 |
| European standard | EN1092 | WN, SO, PL, BL | PN6 to PN 100 | DN10-DN4000 |
| Japanese standard | JIS B2210 | SOP(PL,BL), SOH, (SO A,B,C), WN | 5K, 10K, 16K, 30K | 10A-1500A |
| Italy | UNI 6091-6099 UNI 2280-2286 UNI 2253-2257 | BL,WN, PL, SO | PN6 to PN 100 | DN15-500 |
| Germany | DIN | SO, BL, PL, WN, LOOSE, TH | PN6 to PN 100 | DN10-4000 |
| Sizes in Inch | Imperfections Max. Radial Projection | |
|---|---|---|
| No deeper than the serrations bottom, mm | Serrations Deeper Than the Serrations Bottom, mm | |
| 1/2 | 3.0 | 1.5 |
| 1 1/2 | 3.0 | 1.5 |
| 1 | 3.0 | 1.5 |
| 1 1/4 | 3.0 | 1.5 |
| 2 | 3.0 | 1.5 |
| 3/4 | 3.0 | 1.5 |
| 3 | 4.5 | 1.5 |
| 3 1/2 | 6.0 | 3.0 |
| 4 | 6.0 | 3.0 |
| 2 1/2 | 3.0 | 1.5 |
| 5 | 6.0 | 3.0 |
| 8 | 8.0 | 4.5 |
| 10 | 8.0 | 4.5 |
| 6 | 6.0 | 3.0 |
| 12 | 8.0 | 4.5 |
| 18 | 12.0 | 6.0 |
| 14 | 8.0 | 4.5 |
| 20 | 12.0 | 6.0 |
| 16 | 10.0 | 4.5 |
| 24 | 12.0 | 6.0 |
How to clean rust and corrosion from carbon steel forged flanges?
What is the importance of trustworthy carbon steel blind flanges suppliers?
Purchasing carbon steel blind flanges from trustworthy suppliers like Mesta Inc is crucial. It will ensure that you get quality and certified flanges at the most competitive prices.
How do quantity and order size impact the price of low temp carbon steel flanges?
When clients order low temp carbon steel flanges in huge quantities, suppliers like Mesta Inc usually give volume discounts. Talk to your supplier and see if they reduce the price on bulk ordering as that would lower your per piece flange costing.
What causes a CS flange to leak?