Alloy 20 Flanges

  • Home /
  • Alloy 20 Flanges

Carpenter 20 Slip On Flange & ASTM B462 UNS N08020 Blind Flange manufacturer in India

Table of Content


Alloy 20 Flanges

Alloy 20 Flanges

Manufacturer of Carpenter 20 Flange in India, browse our large selection of 20cb3 Alloy 20 Socket Weld Flange, SB 462 UNS N08020 Weld Neck Flange and DIN 2.4660 Plate Flanges in Mumbai


Size Range 1/2″ to 48″
DIN Pressure Calculation 25Bar 40Bar 16Bar 6Bar 10Bar / PN64 PN10 PN25 PN16 PN6 PN40
JIS 40 K, 16 K, 5K, 10 K, 30 K, 20 K, 63 K
Chart of Pressure Rating 300 LBS, 2500 LBS, 1500 LBS, 900 LBS, 150 LBS, 600 LBS
Manufacturer of GOST, JIS, ANSI, DIN, UNI, BS, AWWA, AS2129, SABS, NFE, EN etc.
UNI / EN 16Bar 6Bar 40Bar 10Bar 25Bar
Manufacturer of Connect / Flange Face Type LJF, RF, RTJ, FF, Small Tongue, Large Tongue & Groove
Production technique Used By Manufacturer Heat treated, Forged and machined
Origin Japan / West Europe / Indian / USA / Korean
Test Magnetic particle detector, X-ray detector, Ultrasonic flaw detector, Direct-reading Spectrograph, Hydrostatic testing machine
Equipment Pushing Machine, Press machine, Sand-blasting machine, Bending machine, electric bevelling machine etc
Common Types By Manufacturer Threaded / Screwed / Forged / Plate
Coating Zinc Plated, Anti-rust Paint, Yellow Transparent, Oil Black Paint, Cold and Hot Dip Galvanized
Standards Provided By Manufacturer ISO70051, MSS S44, BS1560-3.1, API7S-43, B16.48, ANSI/ASME B16.5, B16.47 Series A & B, BS4504, JISB2220, ASME/ANSI B16.5/16.36/16.47A/16.47B, API605, BS 10, EN-1092, DIN, API7S-15, EN1092

Well know Alloy 20 Pipe Flanges stockists, distributor, importer, dealers, supplier, wholesalers, stockholders, exporters and Manufacturer in Mumbai.

  • Stock Flange Finish: The Stock Flange Finish is a continuous groove created with a 1/16" radius round nosed tool and a feed rate of 1/32" per revolution.
  • Spiral Serrated Finish: The Spiral Serrated Finish, like the conventional stock finish, is a continuous groove formed with a 90° included angle "V" tool. For all sizes, the groove is 1/64′′ deep and the feed is 1/32′′.
  • Concentric Serrated Finish: This surface finish is made up of concentric grooves, as the name implies. The grooves are 1/64′′ deep and 1/32′′ apart and are made with a 90° included angle "V" tool.
  • Smooth Finish: Several different shaped tools can be used to create the Smooth Finish. This finish has a 63-125 AA and no visible serrations. This finish was previously known as "Smooth Plane."
  • Cold Water Finish: The Cold Water Finish is created by running a wide tool at high speed; it has a mirror-like look and is typically used without a gasket with a 32-62 AA.
Temperature °F Class 150 Class 600 Class 1500 Class 400 Class 900 Class 300 Class 2500
-20 to 100 275 1440 3600 960 2160 720 6000
300 205 1080 2700 720 1620 540 4500
200 230 1200 3000 800 1800 600 5000
400 190 995 2485 660 1490 495 4140
600 140 875 2185 580 1310 435 3640
650 125 860 2150 575 1290 430 3580
500 170 930 2330 620 1395 465 3880
700 110 850 2125 565 1275 425 3540
750 95 830 2075 555 1245 415 3460
850 65 790 1980 530 1190 395 3300
800 80 805 2015 540 1210 405 3360
900 50 780 1945 520 1165 390 3240
950 35 765 1910 510 1145 380 3180
1000 20 640 1605 430 965 320 2675
1100 20 515 1285 345 770 255 2145
1150 20 400 995 265 595 200 1655
1050 20 615 1545 410 925 310 2570
1200 20 310 770 205 465 155 1285
1250 20 225 565 150 340 115 945
1300 20 170 430 115 255 85 715
1400 20 95 240 65 145 50 400
1350 20 125 310 80 185 60 515
1450 15 70 170 45 105 35 285
1500 10 55 135 35 80 25 230

Manufacturer of Large diameter Incoloy Alloy 20 Forged Flanges and SB 462 UNS N08020 Flange material for high-pressure gas-transmission pipeline

Alloy 20 Flange Price Per Piece in India UNS N08020 Flange Price in INR Alloy 20 Pipe Flanges Price in UAE Dirham Carpenter 20 Flange Price in USD
ASME B16.5 4" CL150 RF Sch40s SW Flanges Per Unit 1604.64 UAE Dirham 78.05 $21.25
3 inch ASME B366 UNS N08020 Socket Welding Flange Per Unit 2241.21 UAE Dirham 109.02 $29.68

If you buy directly from ASTM B462 UNS N08020 Blind Flange manufacturers in India you can save 8-10% cost. We are most reliable and trusted Carpenter 20 Socket Weld Flange stockholders and suppliers in Mumbai. Call or Mail us to get latest Price list of Alloy 20 Flanges.

Alloy 20 Blind Flanges Dimensions

Size in Inch Size in mm ISO Stud Size RF Height Outer Dia. RF Dia. Hole Size PCD No of Bolts Bolt Size UNC Flange Thickness RF Stud Length Weight in kg
D A C E B
1/2 15 M20 7 135 34.9 7/8 88.9 4 3/4 30.2 120 3.2
3/4 20 M20 7 140 42.9 7/8 95.2 4 3/4 31.8 125 3.7
1 25 M24 7 160 50.8 1 108 4 7/8 35 140 5
1 1/4 32 M27 7 185 63.5 1 1/8 130.2 4 1 38.1 150 7.8
1 1/2 40 M30 7 205 73 1 1/4 146 4 1 1/8 44.5 170 10.5
2 50 M27 7 235 92.1 1 1/8 171.4 8 1 50.9 180 18
2 1/2 65 M30 7 265 104.8 1 1/4 196.8 8 1 1/8 57.2 195 25.5
3 80 M33 7 305 127 1 3/8 228.6 8 1 1/4 66.7 220 39
4 100 M39 7 355 157.2 1 5/8 273 8 1 1/2 76.2 255 61.5
5 125 M45 7 420 185.7 1 7/8 323.8 8 1 3/4 92.1 300 102
6 150 M52 7 485 215.9 2 1/8 368.3 8 2 108 345 157
8 200 M52 7 550 269.9 2 1/8 438.2 12 2 127 380 241
10 250 M64 7 675 323.8 2 5/8 539.8 12 2 1/2 165.1 490 470
12 300 M72 7 760 381 2 7/8 619.1 12 2 3/4 184.2 540 575

Alloy 20 Slip on Flange Dimensions

Size in Inch Size in mm No of Bolts Outer Dia. Hub OD ISO Stud Size Flange Length RF Height Flange Thick. RF Dia. PCD Hole Size Socket Bore Weight in kg
A C D F B E G H
1/2 15 4 90 30 M14 14 2 9.6 34.9 60.3 5/8 22.2 0.8
1 25 4 110 49 M14 16 2 12.7 50.8 79.4 5/8 34.5 0.9
3/4 20 4 100 38 M14 14 2 11.2 42.9 69.9 5/8 27.7 0.9
1 1/4 32 4 115 59 M14 19 2 14.3 63.5 88.9 5/8 43.2 1.4
2 50 4 150 78 M16 24 2 17.5 92.1 120.7 3/4 61.9 2.3
1 1/2 40 4 125 65 M14 21 2 15.9 73 98.4 5/8 49.5 1.4
2 1/2 65 4 180 90 M16 27 2 20.7 104.8 139.7 3/4 74.6 3.2
3 80 4 190 108 M16 29 2 22.3 127 152.4 3/4 90.7 3.7
4 100 8 230 135 M16 32 2 22.3 157.2 190.5 3/4 116.1 5.9
3 1/2 90 8 215 122 M16 30 2 22.3 139.7 177.8 3/4 103.4 5
5 125 8 255 164 M20 35 2 22.3 185.7 215.9 7/8 143.8 6.8
8 200 8 345 246 M20 43 2 27 269.9 298.5 7/8 221.5 13.7
10 250 12 405 305 M24 48 2 28.6 323.8 362 1 276.2 19.5
6 150 8 280 192 M20 38 2 23.9 215.9 241.3 7/8 170.7 8.6
12 300 12 485 365 M24 54 2 30.2 381 431.8 1 327 29
24 600 20 815 663 M33 81 2 46.1 692.2 749.3 1 3/8 616 100
16 400 16 595 457 M27 62 2 35 469.9 539.8 1 1/8 410.5 54
18 450 16 635 505 M30 67 2 38.1 533.4 577.9 1 1/4 461.8 59
14 350 12 535 400 M27 56 2 33.4 412.8 476.3 1 1/8 359.2 41
20 500 20 700 559 M30 71 2 41.3 584.2 635 1 1/4 513.1 75
Buy rf/ ff/ rtj face 20cb3 Alloy 20 Spectacle Blind Flange and ASTM B462 UNS N08020 Lap Joint Flange at Unbeatable Prices in Maharashtra

Alloy 20 Weld Neck Flange Dimensions

Flange NPS H Inside
Diameter		 Flat Face
Thickness (T2)		 Outside
Diameter		 Raised Face
(RF)		 Raised Face
(R)		 H1 Raised Face
Thickness (T)		 T1 Bolt Circle
(BC)		 Bolt Hole
(B)		 No. of
Bolt Holes
1/2" 1.19" 0.62" 1.82" 3.50" .063" 1.38" 0.84" 1.88" .38" 2.38" .62" 4
1-1/4" 2.31" 1.38" 2.19" 4.62" .063" 2.50" 1.66" 2.25" .56" 3.50" .62" 4
3/4" 1.50" 0.82" 2.00" 3.88" .063" 1.69" 1.05" 2.06" .44" 2.75" .62" 4
1-1/2" 2.56" 1.61" 2.38" 5.00" .063" 2.88" 1.90" 2.44" .62" 3.88" .62" 4
1" 1.94" 1.05" 2.13" 4.25" .063" 2.00" 1.32" 2.19" .50" 3.12" .62" 4
2" 3.06" 2.07" 2.44" 6.00" .063" 3.62" 2.38" 2.50" .69" 4.75" .75" 4
2-1/2" 3.56" 2.47" 2.69" 7.00" .063" 4.12" 2.88" 2.75" .82" 5.50" .75" 4
3" 4.25" 3.07" 2.69" 7.50" .063" 5.00" 3.50" 2.75" .88" 6.00" .75" 4
4" 5.31" 4.03" 2.94" 9.00" .063" 6.19" 4.50" 3.00" .88" 7.50" .75" 8
5" 6.44" 5.05" 3.44" 10.00" .063" 7.31" 5.56" 3.50" .88" 8.50" .88" 8
3-1/2" 4.81" 3.55" 2.75" 8.50" .063" 5.50" 4.00" 2.81" .88" 7.00" .75" 8
6" 7.56" 6.07" 3.44" 11.00" .063" 8.50" 6.63" 3.50" .94" 9.50" .88" 8
8" 9.69" 7.98" 3.94" 13.50" .063" 10.62" 8.63" 4.00" 1.06" 11.75" .88" 8
22" 24.25" 21.25" 5.82" 29.50" .063" 25.25" 22.00" 5.88" 1.75" 27.25" 1.38" 20
10" 12.00" 10.02" 3.94" 16.00" .063" 12.75" 10.75" 4.00" 1.13" 14.25" 1.00" 12
12" 14.38" 12.00" 4.44" 19.00" .063" 15.00" 12.75" 4.50" 1.19" 17.00" 1.00" 12
16" 18.00" 15.25" 4.94" 23.50" .063" 18.50" 16.00" 5.00" 1.38" 21.25" 1.12" 16
18" 19.88" 17.25" 5.44" 25.00" .063" 21.00" 18.00" 5.50" 1.50" 22.75" 1.25" 16
14" 15.75" 13.25" 4.94" 21.00" .063" 16.25" 14.00" 5.00" 1.32" 18.75" 1.12" 12
20" 22.00" 19.25" 5.63" 27.50" .063" 23.00" 20.00" 5.69" 1.63" 25.00" 1.25" 20
24" 26.12" 23.25" 5.94" 32.00" .063" 27.25" 24.00" 6.00" 1.82" 29.50" 1.38" 20

ASME SB462 Alloy 20 Slip on Flange Vs DIN 2.4660 Weld Neck Flange

The ASME SB462 Alloy 20 Slip on Flange is slipped into the pipe and then the connection is made with the help of double weld- one on the backside of the flange and one in the front. Generally, the slip on flanges are more affordable than the weld neck flanges, but it can become expensive with the number of welding and inspections. Also, the strength of the slip on flange under any internal pressure is around 2/3rd, and fatigue strength is around 1/3rd of that of the weld neck flange

The DIN 2.4660 Weld Neck Flange is easily recognizable by the tapered hub which comes from the bolted connection to the pipe. The connection is made here with the help of but twelding, and that helps in preventing any type of turbulence at the joint. It also minimizes erosion and reduces restriction in the product flow. The alloy 20 weld neck flanges offer enhanced strength under different types of environments.

NPS (Nominal Pipe Size) Loose (Lap Joint) NPT (Threaded) SORF (Slip On) BLRF (Blind) SWRF (Socket Weld) WRNR (Weld Neck)
½ 1 1 1 2 2 2
1 2 2 2 2 2 3
1¼ 3 3 3 3 3 3
¾ 2 2 2 2 2 2
1½ 3 3 3 4 3 4
2½ 8 8 8 7 8 10
2 5 5 5 5 5 6
3 9 9 9 9 9 11.5
4 13 13 13 17 13 16.5
3½ 11 12 11 13 11 12
5 15 15 15 20 15 21
8 30 30 30 47 30 42
6 19 19 19 27 19 26
10 43 43 43 70 43 54
24 275 220 220 430 220 268
14 105 90 90 140 90 114
12 64 64 64 123 64 88
16 140 98 106 180 98 140
20 195 165 165 285 165 197
18 160 130 130 220 130 165
22 245 185 185 355 185 225
Grade C Mn Si S Cu Ni Cr Fe Mo P
Alloy 20 0.07 max 2.00 max 1.00 max 0.035 max 3.00 – 4.00 32.00 – 38.00 19.00 – 21.00 29.85 min* 2.00 – 3.00 0.045 max
Element Density Melting Point Tensile Strength Yield Strength (0.2%Offset) Elongation
Alloy 20 8.1 g/cm3 1443 °C (2430 °F) Psi -80,000, MPa -551 Psi - 35,000, MPa - 241 30 %
STANDARD WERKSTOFF NR. UNS EN AFNOR
Alloy 20 2.4660 N08020 NiCr20CuMo Z2NCUD31-20AZ
Check ASTM B462 N08020 Long Weld Neck Flange, Carpenter 20 Orifice Flanges and Alloy 20 Threaded Flange temperature/ pressure ratings & price in India
DIN 2.4660 SWRF Flanges

DIN 2.4660 SWRF Flanges

5000 NB ASTM B462 Alloy 20 Lapped Joint Flange

5000 NB ASTM B462 Alloy 20 Lapped Joint Flange

Alloy 20 Long Weld Neck Flange

Alloy 20 Long Weld Neck Flange

15 NB ASTM B462 UNS N08020 Slip On Flange

15 NB ASTM B462 UNS N08020 Slip On Flange

Alloy 20 SS Ring Joint Flange

Alloy 20 SS Ring Joint Flange

300 LBS UNS N08020 WNRF Flange

300 LBS UNS N08020 WNRF Flange

Alloy 20 Stainless Steel Threaded Flange

Alloy 20 Stainless Steel Threaded Flange

DIN 2.4660 BLRF Flanges

DIN 2.4660 BLRF Flanges

150 LBS Carpenter 20 Expander Flanges

150 LBS Carpenter 20 Expander Flanges

DIN 2.4660 Weld Neck Flange

DIN 2.4660 Weld Neck Flange

Nickel Alloy 20 Screwed Flange

Nickel Alloy 20 Screwed Flange

900 LBS Carpenter 20 Stainless Steel Tongue & Groove Flange

900 LBS Carpenter 20 Stainless Steel Tongue & Groove Flange

Alloy 20 Stainless Steel Spectacle Blind Flange

Alloy 20 Stainless Steel Spectacle Blind Flange

1500 LBS ASTM B462 UNS N08020 Orifice Flanges

1500 LBS ASTM B462 UNS N08020 Orifice Flanges

ASTM B462 Alloy 20 SORF Flanges

ASTM B462 Alloy 20 SORF Flanges

Nickel Alloy 20 Nipoflange

Nickel Alloy 20 Nipoflange

600 LBS Carpenter 20 Blind Flange

600 LBS Carpenter 20 Blind Flange

UNS N08020 Socket Weld Flange

UNS N08020 Socket Weld Flange

2500 LBS Carpenter 20 Stainless Steel Girth Flanges

2500 LBS Carpenter 20 Stainless Steel Girth Flanges

Alloy 20 Reducing Flanges

Alloy 20 Reducing Flanges

Alloy 20 Pipe Flanges

Alloy 20 Pipe Flanges

Carpenter 20 Socket Weld Flange

Carpenter 20 Socket Weld Flange

ASTM B462 UNS N08020 Blind Flange

ASTM B462 UNS N08020 Blind Flange

ASME SB462 Alloy 20 Slip on Flange

ASME SB462 Alloy 20 Slip on Flange

Properties Metric Imperial
Thermal expansion co-efficient (@20-100°C/68-212°F) 14.7 µm/m°C 8.17 µin/in°F
Thermal conductivity 12.3 W/mK 85.4 BTU.in/hrft².°F
  • Cement Industries
  • Paper Industries
  • Oil and Gas Industries
  • Power Industries
  • Ship Building Industries
  • Chemical Industries
  • Food Processing Industries
  • Pipeline
Properties Metric Imperial
Density 8.05 g/cm3 0.291 lb/in3
  • Pitting protection test
  • Positive material recognition
  • Large-scale test
  • Firmness test
  • Small tests
  • Impact analysis
  • Eddy current examining
  • X-ray test
  • Hydrostatic analysis
  • Chemical examination-Spectro analysis

Flanges Material



Pipe Fittings Material



Other Products