Alloy 20 Flanges

Alloy 20 Flanges

Alloy 20 Flanges at a Glance

  • Specification : ASTM B462 / ASME SB462
  • Class : Class 150 to 2500
  • Type : Casting or Forging
  • Sealing Surface : FF, RF, RTJ, FM, etc.
  • MTC : MTC EN 10204 3.1 & 3.2



UNS N08020 Alloy 20 Weld Neck Flange Manufacturer in India as per ASME B16.5

Alloy 20 Flanges

Alloy 20 Flanges

UNS N08020 Alloy 20 Weld Neck Flange

UNS N08020 Alloy 20 Weld Neck Flange

Alloy 20 N08020 Socket Weld Flange

Alloy 20 N08020 Socket Weld Flange

Table Of Content


Alloy 20 Flanges Specification

Sizes

Alloy 20 Flanges Sizes

  • 1/2" to 48"
  • PN 2.5 – PN 400
  • 15 NB - 1200NB





Class

ASTM B462 N08020 Flanges Class

  • Class 600
  • Class 1500
  • Class 300
  • Class 150
  • Class 2500
  • Class 900

Coating

Coating of Nickel Alloy 20 Weld Flanges

  • Anti-rust Paint
  • Oil Black Paint
  • Zinc Plated
  • Yellow Transparent
  • Cold and Hot Dip Galvanized
UNS No

UNS No of Alloy 20 N08020 Forged Steel Flanges

  • N08020

ASTM Standard

ASTM Standard of 20CB3 Alloy 20 Hot Forged Flange

  • ASTM B462 / ASME SBB462
Common Trade Name

ASTM B462 UNS N08020 Flanges Common Trade Name

  • 20, 20CB-3®
  • Carpenter®
Density

Density of Alloy 20 N08020 Socket Weld Flange

  • 8.1 g/cm3
Melting Point

Melting Point of Nickel Alloy 20 Threaded Flange

  • 1443 °C
Werkstoff Nr.

Werkstoff Nr. of Alloy 20 N08020 Plate Flanges

  • 2.4660
Service Temperature

Service Temperature of Alloy 20 Blind Flange

  • 540°C
  • 1000°F





Special design

Special Design of Nickel Alloy 20 Threaded Flange

  • 15 to 200 NB






Equipment

Equipment of Alloy 20 Flanges

  • Bending Machine
  • Press Machine
  • Pushing Machine
  • Electric Bevelling Machine
Origin

Origin of 20CB3 Alloy 20 Slip on Flange

  • West Europe
  • Korean
  • USA 
  • Indian 
  • Japan 

Threads Types

Threads Types of 2.4660 Alloy 20 Lap Joint Flange

  • MNPT
  • MPT, BSPT
  • BSPP, BSP
  • NPT,FPT

Value Added Services

Value Added Services of Alloy 20 Flanges

  • Metal Stampings
  • Sand Blasting
  • Beveling End
  • Cutting
  • Pickled
  • Rolling
Meet Requirements

Meet Requirements of Nickel Alloy 20 Threaded Flange

  • NACE MR0103
  • ISO 15156
  • Sour Service
  • NACE TM-0284
  • NACE MR0175

Marking

Marking of UNS N08020 Alloy 20 Weld Neck Flange

  • Sizes
  • Material Grade
  • Face Type
  • Pressure Class
  • Manufacturing Date
  • Origin of Material
Manufacturing Methods

Manufacturing Methods of Alloy 20 Flanges

  • Rolled
  • Milling 
  • Stamping
  • Forged
  • Turning
  • CNC Machining
  • Drilling
Face Type

Face Type for 20CB3 Alloy 20 Slip on Flange

  • Lap-Joint Face 
  • Male/Female Face
  • Raised face
  • Ring-Joint Face
  • Tongue and Groove Face
  • Flat Face

Production Technique

Production Technique of Alloy 20 N08020 Socket Weld Flange

  • Machined
  • Heat treated
  • Forged




Test Certificates

Test Certificates of Nickel Alloy 20 Weld Flanges

  • 100% Radiography Test Report
  • Raw Materials Certificate
  • EN 10204/3.1B
  • Third Party Inspection Report

Manufacturer of Alloy 20 N08020 Socket Weld Flange, Check 20CB3 Alloy 20 Slip on Flange Dimensions

Standards Dia Class Dia of Bolt Hole Bolt Circle Dia Bolt Size No. of Bolts
ISO 7005 (DIN) Flange 95 PN16 14 65 M12 4
95 PN40 14 65 M12 4
80 PN6 11 55 M10 4
95 PN25 14 65 M12 4
95 PN10 14 65 M12 4
90 PN20 16 60.5 M14 4
AS4087 95 PN14 14 67 M12 4
ANSI B16.5 95 ANSI 600 16 67 13 4
121 ANSI 1500 22 83 19 4
89 ANSI 150 16 60 13 4
121 ANSI 900 22 83 19 4
95 ANSI 300 16 67 13 4
AS 2129 Flange 95 Table E 14 67 13 4
114 Table J 17 83 16 4
95 Table C 14 67 13 4
114 Table H 17 83 16 4
95 Table D 14 67 13 4
95 Table F 14 67 13 4

ASTM B462 UNS N08020 Flanges and Alloy 20 Blind Flange in Different Threads Types

Threads Types

  • Lap Joint Flanges (LJRF)
  • Screwed Flanges
  • Ring Type Joint Flanges (RTJF)
  • Socket Weld Flanges (SWRF)
  • Blind Flanges (BLRF)
  • Slip-on Flanges (SORF)
  • Weld Neck Flanges (WNRF)
Nickel Alloy 20 Threaded Flange for Pressure Vessels and Petrochemical Plants
Application of Alloy 20 Flanges


Manufacturing 2.4660 Alloy 20 Lap Joint Flange in Different Types up to 2500 Pressure Rating
Temp. in (°C) Class 600 Class 2500 Class 150 Class 400 Class 1500 Class 300 Class 900
425 70.0 291.6 5.5 46.5 175.1 35.2 105.1
300 85.7 357.1 10.2 57.0 214.4 42.9 128.6
50 103.4 430.9 19.5 68.9 258.6 51.7 155.1
400 73.3 304.9 6.5 48.9 183.1 36.5 109.8
100 101.7 423.9 17.7 67.8 254.4 50.9 152.6
375 77.6 323.2 7.4 51.6 194.1 38.9 116.5
250 91.0 379.2 12.1 60.7 227.5 45.5 136.5
150 97.9 407.8 15.8 65.3 244.7 48.9 146.8
350 80.4 335.3 8.4 53.6 201.1 40.3 120.7
200 94.3 392.9 13.8 62.9 235.8 47.2 141.5
325 82.6 344.3 9.3 55.0 206.6 41.4 124.0
-29~38 103.4 430.9 20.0 68.9 258.6 51.7 155.1

Size Range of UNS N08020 Alloy 20 Weld Neck Flange
NPS in (Inches) ASME B16.5 Class 150 Size Ranges
Bolts No. Bolt Dia in (Inch) Bolt Holes (B.H.) Dia in (Inch) Bolt Circle (B.C.) in (Inch) Flange Dia in (Inch)
24" 20 1-1/4 1.38 29-1/2 32Inches
1/4" 4 1/2 0.62 2-1/4 3-3/8
1" 4 1/2 0.62 3-1/8 4-1/4
20" 20 1-1/8 1.25 25 27-1/2
10" 12 7/8 1 14-1/4 16
3/4" 4 1/2 0.62 2-3/4 3-7/8
12" 12 7/8 1 17 19
1-1/4" 4 1/2 0.62 3-1/2 4-5/8
8" 8 3/4 0.88 11-3/4 13-1/2
1/2" 4 1/2 0.62 2-3/8 3-1/2
5" 8 3/4 0.88 8-1/2 10
16" 16 1 1.12 21-1/4 23-1/2
3-1/2" 8 5/8 0.75 7 8-1/2
6" 8 3/4 0.88 9-1/2 11
2" 4 5/8 0.75 4-3/4 6
1-1/2" 4 1/2 0.62 3-7/8 5
3" 4 5/8 0.75 6 7-1/2
14" 12 1 1.12 18-3/4 21
2-1/2" 4 5/8 0.75 5-1/2 7
4" 8 5/8 0.75 7-1/2 9
18" 16 1-1/8 1.25 22-3/4 25

Diameter and Number of the Bolt Holes of Alloy 20 Flanges
Pressure Class Hole
CL 2500 Alloy 20 stainless steel flange 73 (MM) / 12 Holes
CL 150 Alloy 20 stainless steel flange 25.4 (MM)/ 12 Holes
CL 600 carpenter alloy 20cb3 flange 34.9 (MM)/ 20 Holes
CL 1500 Incoloy alloy 20 flange 54 (MM) / 16 Holes
CL 300 2.4660 alloy 20 flange 28.6 (MM) / 16 Holes
CL 900 alloy 20 flange 38.1 (MM) / 20 Holes
CL 400 Cn7m Alloy 20 flange 34.9 (MM) / 16 Holes

Types of ASTM B462 N08020 Flanges
Alloy 20 Blind Flange

Alloy 20 Blind Flange

Nickel Alloy 20 Threaded Flange

Nickel Alloy 20 Threaded Flange

20CB3 Alloy 20 Slip on Flange

20CB3 Alloy 20 Slip on Flange

Alloy 20 UNS N08020 Reducing Flange

Alloy 20 UNS N08020 Reducing Flange

2.4660 Alloy 20 Lap Joint Flange

2.4660 Alloy 20 Lap Joint Flange

Alloy 20 N08020 Plate Flanges

Alloy 20 N08020 Plate Flanges

Alloy 20 Flanges Weight Chart
NPS (Nominal Pipe Sizes) Weld Neck (WRNR) Socket Weld (SWRF) Slip On (SORF) Blind (BLRF) Threaded (NPT) Lap Joint (Loose)
5 21 15 15 20 15 15
24 268 220 220 430 220 275
½ 2 2 1 2 1 1
22 225 185 185 355 185 245
¾ 2 2 2 2 2 2
4 16.5 13 13 17 13 13
20 197 165 165 285 165 195
1 3 2 2 2 2 2
3½ 12 11 11 13 12 11
18 165 130 130 220 130 160
1¼ 3 3 3 3 3 3
3 11.5 9 9 9 9 9
16 140 98 106 180 98 140
8 42 30 30 47 30 30
1½ 4 3 3 4 3 3
14 114 90 90 140 90 105
2 6 5 5 5 5 5
6 26 19 19 27 19 19
12 88 64 64 123 64 64
2½ 10 8 8 7 8 8
10 54 43 43 70 43 43

Alloy 20 Forgings Faces Types
Face Types Short name
Flat Face FF
Raised Face RF
Ring Joint Flanges RTJ
Male and Female Flanges M&F
Tongue and Groove Flanges T&G
Lap Joint Flanges LJ

Nickel Alloy 20 Weld Flanges HSN Code
Grade HSN Code
Alloy 20 Flanges 73072100

Alloy 20 Flanges Dimensions
Nominal Size Dia of Hub at Base Outer Dia of Flange Dia of RF Flanges Thick Bore or Dia Deptd of Socket Radius of Fillet Diameter of Hub at Bevel Lengtd Tdru Hub
Lap Joint (Loose) Slip-on (SORF) Socket (SWRF) Lap Joint (Loose) Slip-On (SORF) Threaded (NPT) Socket (SWRF) Welding (WN) Neck
X O R Q B W Z r H Y Y Y
2-1/2 3-9/16 7 4-1/8 7/8 2.97 2.94 3/4 5/16 2.88 1-1/8 1-1/8 2-3/4
24 26-1/8 32 27-1/4 1-7/8 24.25 24.25 2-1/2 1/2 24.00   3-1/4 6
4 5-5/16 9 6-3/16 15/16 4.60 4.57 15/16 7/16 4.50 1-5/16 1-5/16 3
1/2 1-3/16 3-1/2 1-3/8 7/16 .90 .88 3/8 1/8 .84 5/8 5/8 1-7/8
20 22 27-1/2 23 1-11/16 20.25 20.20 2-1/8 1/2 20.00 4-1/16 2-7/8 5-11/16
6 7-9/16 11 8-1/2 1 6.75 6.72 1-1/16 1/2 6.63 1-9/16 1-9/16 3-1/2
3/4 1-1/2 3-7/8 1-11/16 1/2 1.11 1.09 7/16 1/8 1.05 5/8 5/8 2-1/16
5 6-7/16 10 7.5/16 15/16 5.69 5.66 15/16 7/16 5.56 1-7/16 1-7/16 3-1/2
18 19-7/8 25 21 1-9/16 18.20 18.18 1-15/16 1/2 18.00 3-13/16 2-11/16 5-1/2
1 1-15/16 4-1/4 2 9/16 1.38 1.36 1/2 1/8 1.32 11/16 11/16 2-3/16
16 18 23-1/2 18-1/2 1-7/16 16.19 16.16 1-3/4 1/2 16.00 3-7/16 2-1/2 5
8 9-11/16 13-1/2 10-5/8 1-1/8 8.75 8.72 1-1/4 1/2 8.63 1-3/4 1-3/4 4
1-1/4 2-5/16 4-5/8 2-1/2 5/8 1.72 1.70 9/16 3/16 1.66 13/16 13/16 2-1/4
14 15-3/4 21 16-1/4 1-3/8 14.18 14.14 1-5/8 1/2 14.00 3-1/8 2-1/4 5
1-1/2 2-9/16 5 2-7/8 11/16 1.97 1.95 5/8 1/4 1.90 7/8 7/8 2-7/16
3 4-1/4 7-1/2 5 15/16 3.60 3.57 13/16 3/8 3.50 1-3/16 1-3/16 2-3/4
12 14-3/8 19 15 1-1/4 12.92 12.88 1-9/16 1/2 12.75 2-3/16 2-3/16 4-1/2
3-1/2 4-13/16 8-1/2 5-1/2 15/16 4.10 4.07 7/8 3/8 4.00 1-1/4 1-1/4 2-13/16
2 3-1/16 6 3-5/8 3/4 2.46 2.44 11/16 5/16 2.38 1 1 2-1/2
10 12 16 12-3/4 1-3/16 10.92 10.88 1-5/16 1/2 10.75 1-15/16 1-15/16 4

Physical Properties of Nickel Alloy 20 Weld Flanges
Grade Density Melting Point
(g/cm3) (°C) (°F)
Alloy 20 Flanges 8.1 1443 2430

Alloy 20 Chemical Composition
2.00 max
Mn
1.00 max
Si
0.035 max
S
0.07 max
C
19.00 – 21.00
Cr
32.00 – 38.00
Ni
29.85 Min
Fe
3.00 – 4.00
Cu
2.00 – 3.00
Mo
0.045 Max
P

Mechanical Properties of UNS N08020 Alloy 20 Weld Neck Flange

Tensile Strength

551 MPa (80,000 Psi)

Yield Strength

241 MPa (35,000 Psi)



Elongation in (%)

30 %


Alloy 20 Material Equivalent



Advantages of Alloy 20 Flanges
  • Cost-Effective
  • High Strength
  • High Weldability
  • Excellent Corrosion Resistance
  • Versatile Applications
Werkstoff Nr. 2.4660 Flanges Corrosion Cracking Comparison Time
Gr. 26% NaCl 33% LiCl 42% MgCl2
Alloy 20 Flange No Cracking No Cracking SCC

Industrial Flanges

Other Flanges

Other Products

Why Aesteiron?

  • Distributor of USA, Japan and European Mills for Seamless Pipes and Steel Plates
  • Only Indian Company who has Weekly 3 Shipment to Saudi Arabia, Netherlands and USA
  • Vast experience as an Exporter of Industrial Long and Flat Products in India
  • Keep Ex-Stock of Nickel Alloys Make Special Metals, USA
  • Supply Europe, USA, Japan and Korea Origin Material
  • Local Distributor in Houston (USA)
  • 350+ Clients in Atlanta, California, Wisconsin, Texas, Kansas, Indiana, Florida
  • Get Price, availability, and shipping information Via WhatsApp and Email in Maximum 2 Hrs
  • DFARS compliant Pipe, Fittings and Sheets for oil and gas companies
  • Weekly Delivery in Tanzania, Sharjah, Dubai, Qatar and Cape Town
  • Special Price for Steel Suppliers, Wholesalers, Importer, Stockholder, Traders and Stockist in USA
  • Known for Best quality of Steel Fittings, Flanges and Pipes
  • Offer MTC 3.1/3.2 and Third Party Inspection at Lowest Price
  • Specialized in supplying Large Diameter Steel Pipes with wear-resistant coating

Why Aesteiron?

  • Distributor of USA, Japan and European Mills for Seamless Pipes and Steel Plates
  • Only Indian Company who has Weekly 3 Shipment to Saudi Arabia, Netherlands and USA
  • Vast experience as an Exporter of Industrial Long and Flat Products in India
  • Keep Ex-Stock of Nickel Alloys Make Special Metals, USA
  • Supply Europe, USA, Japan and Korea Origin Material
  • Local Distributor in Houston (USA)
  • 350+ Clients in Atlanta, California, Wisconsin, Texas, Kansas, Indiana, Florida
  • Get Price, availability, and shipping information Via WhatsApp and Email in Maximum 2 Hrs
  • DFARS compliant Pipe, Fittings and Sheets for oil and gas companies
  • Weekly Delivery in Tanzania, Sharjah, Dubai, Qatar and Cape Town
  • Special Price for Steel Suppliers, Wholesalers, Importer, Stockholder, Traders and Stockist in USA
  • Known for Best quality of Steel Fittings, Flanges and Pipes
  • Offer MTC 3.1/3.2 and Third Party Inspection at Lowest Price
  • Specialized in supplying Large Diameter Steel Pipes with wear-resistant coating
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Project Reference

Project Refrence

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Conclusion

Alloy 20 Flanges Available in a Range of Pressure Ratings, Types, and Faces. Mostly Utilized in Oil and Gas Industries and Petrochemical Plants.

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