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ASTM A182 F91 Flanges

Home|ASTM A182 F91 Flanges

Trusted Manufacturer of SA 182 Grade F91 Type 2 Slip on Flange in China, At At Best Price

ASTM A182 F91 Flanges

Table of Content

Flanges-table

ASTM A182 F91 Flanges Specification

Flange Sizes

SA 182 Gr F91 Flange Sizes

  • NPS: 1/2″ to 48″
  • 15NB – 1200NB
  • PN 2.5 – PN 400
Flange Standards

ASME Sa182 f91 Weld Neck Flange Standards

  • ANSI B16.47 Series A & B
  • ASA, MSS SP44
  • ANSI B16.5
Testing Methods

SA 182 Gr F91 Socket Weld Flange Testing Methods

  • Hardness test
  • Pressure
  • PMI
  • Tensile
Features

ASTM A182 F91 Flanges Features

  • Pressure classes
  • Face types
  • Composition
  • Dimensional accuracy
flange Face

ASTM A182 Grade F91 slip on flange Face

  • RTJ
  • T&G
  • FF
  • RF
Origin

F91 Spectacle Blind Flanges Origin

  • Thailand
  • Brazil
  • China
  • Indian
Flange Threads

ASTM A182 F91 Weld Neck Flange Threads

  • BSPP
  • NPT, MNPT
  • FNPT
  • BSPT
Flanges Process

SA 182 Gr F91 Orifice Flanges Process

  • Forging
  • Rolling
  • Casting
  • Cutting
Flange Schedule

ASTM A182 Grade F91 Slip On Flange Schedule

  • SCH 10s to XXH
Pressure Types

ASME Sa182 f91 Weld Neck Flange Pressure Types

  • 400# To 900#
  • 150# To 300#
  • 1500# To 2500#
Advantages

A182 F91 Threaded Flange Advantages

  • Dimensional accuracy
  • Durability
  • Corrosion resistance
  • High service temperature applications
Disadvantages

Disadvantages of ASME SA 694 F60 Socket Weld Flange

  • Potential for corrosion
  • Vulnerability to high stress
  • Assembly error
  • Installation
  • Flexibility
Certificates

Certificates of ASME Sa182 f91 Weld Neck Flange

  • NACE MR0175
  • Third Party Inspection
  • 100% Radiography Test
  • MTC BS EN 10204 3.1/ 3.2
Density & Temperature

A182 F91 Threaded Flange Density & Temperature

  • Melting Point :1400-1450 °C
  • Density : 7.8 g/cm³
  • Working Temp : 593°C (1100°F)
  • Forging Temp : 1100°F (593°C)

Types of SA 182 Gr F91 Flanges


ASTM A182 F91 Flanges

ASTM A182 F91 Flanges

SA 182 Gr F91 Orifice Flanges

SA 182 Gr F91 Orifice Flanges

A182 F91 Lap Joint Flanges

A182 F91 Lap Joint Flanges

ASME Sa182 f91 Weld Neck Flange

ASME Sa182 f91 Weld Neck Flange

ASTM A182 F91 Plate Flange

ASTM A182 F91 Plate Flange

ASTM A182 Grade F91 Slip On Flange

ASTM A182 Grade F91 Slip On Flange

A182 F91 Threaded Flange

A182 F91 Threaded Flange

F91 Spectacle Blind Flanges

F91 Spectacle Blind Flanges

SA 182 Gr F91 Socket Weld Flange

SA 182 Gr F91 Socket Weld Flange


Supplier of ASME SA182 Grade F91 Pipe Flanges Available in Various Dimensions & Value Added Services, Check Specifications


Dimensions Chart Of ASTM A182 F91 Flanges

ASTM A182 F91 Flanges Manufacturer In China Provides A Wide Variety Of Dimensions.

ASTM A182 F91 Flanges Dimensions

NOM. PIPE SIZE NO./DIA. OF HOLES R O X T BOLT CIRCLE DIA. B D L2 B3 L H L3 B2 R
24 20-1.38 27.25 32 26.12 1.88 29.5 24.25 2.5 6 24.25 3.25 24 4.38 23.25 0.5
4 8-0.75 6.19 9 5.31 0.94 7.5 4.57 0.94 3 4.6 1.31 4.5 1.31 4.03 0.44
1/2 4-0.62 1.38 3.5 1.19 0.44 2.38 0.88 0.38 1.88 0.9 0.62 0.84 0.62 0.62 0.12
5 8-0.88 7.31 10 6.44 0.94 8.5 5.66 0.94 3.5 5.69 1.44 5.56 1.44 5.05 0.44
22 20-1.38 25.25 29.5 24.25 1.81 27.25 22.22 2.38 5.88 22.25 3.13 22 4.25 21.25 0.5
3/4 4-0.62 1.69 3.88 1.5 0.5 2.75 1.09 0.44 2.06 1.11 0.62 1.05 0.62 0.82 0.12
20 20-1.25 23 27.5 22 1.69 25 20.2 2.13 5.69 20.25 2.88 20 4.06 19.25 0.5
1 4-0.62 2 4.25 1.94 0.56 3.12 1.36 0.5 2.19 1.38 0.69 1.32 0.69 1.05 0.12
18 16-1.25 21 25 19.88 1.56 22.75 18.18 1.94 5.5 18.2 2.69 18 3.81 17.25 0.5
1-1/4 4-0.62 2.5 4.62 2.31 0.62 3.5 1.7 0.56 2.25 1.72 0.81 1.66 0.81 1.38 0.19
16 16-1.12 18.5 23.5 18 1.44 21.25 16.16 1.75 5 16.19 2.5 16 3.44 15.25 0.5
1-1/2 4-0.62 2.88 5 2.56 0.68 3.88 1.95 0.62 2.44 1.97 0.88 1.9 0.88 1.61 0.25
6 8-0.88 8.5 11 7.56 1 9.5 6.72 1.06 3.5 6.75 1.56 6.63 1.56 6.07 0.5
14 12-1.12 16.25 21 15.75 1.38 18.75 14.14 1.63 5 14.18 2.25 14 3.12 13.25 0.5
2 4-0.75 3.62 6 3.06 0.75 4.75 2.44 0.69 2.5 2.46 1 2.38 1 2.07 0.31
12 12-1.00 15 19 14.38 1.25 17 12.88 1.56 4.5 12.92 2.19 12.75 2.19 12 0.5
2-1/2 4-0.75 4.12 7 3.56 0.88 5.5 2.94 0.75 2.75 2.97 1.12 2.88 1.12 2.47 0.31
10 12-1.00 12.75 16 12 1.19 14.25 10.88 1.31 4 10.92 1.94 10.75 1.94 10.02 0.5
3 4-0.75 5 7.5 4.25 0.94 6 3.57 0.81 2.75 3.6 1.19 3.5 1.19 3.07 0.38
8 8-0.88 10.62 13.5 9.69 1.12 11.75 8.72 1.25 4 8.75 1.75 8.63 1.75 7.98 0.5
3-1/2 8-0.75 5.5 8.5 4.81 0.94 7 4.07 0.88 2.81 4.1 1.25 4 1.25 3.55 0.38

Size Chart Of ASME Sa182 f91 Weld Neck Flange

ASTM A182 F91 Flanges Manufacturer In China Offers Sizes Of Various Range

NORMAL PIPE SIZE GASKET I.D. (INSIDE DAI) GASKET O.D. (OUTSIDE DAI)
900 LB 150 LB 600 LB 400 LB 300 LB
2 2.38 5.625 4.125 4.375 4.375 4.375
12 12.75 19.625 16.125 18.00 16.50 16.625
3 3.50 6.625 5.375 5.875 5.875 5.875
1/2 0.84 2.50 1.875 2.125 2.125 2.125
10 10.75 17.125 13.375 15.75 14.125 14.25
3/4 1.06 2.75 2.25 2.625 2.625 2.625
8 8.62 14.125 11 12.625 12.00 12.125
2 1/2 2.88 6.50 4.875 5.125 5.125 5.125
1 1.31 3.125 2.625 2.875 2.875 2.875
6 6.62 11.375 8.75 10.50 9.75 9.875
1 1/4 1.66 3.50 3 3.25 3.25 3.25
5 5.56 9.75 7.75 9.50 8.375 8.50
1 1/2 1.91 3.875 3.375 3.75 3.75 3.75
4 4.50 8.125 6.875 7.625 7.00 7.125

SA 182 Gr F91 Socket Weld Flange Weight Chart

NOMINAL PIPE SIZE (NPS) WEIGHT IN (LBS) WEIGHT IN (KG) FLANGE CLASS
4 16.0 7.27 CLASS 150
12 95.0 43.18 CLASS 150
3 12.0 5.44 CLASS 150
1/2 1.5 0.68 CLASS 150
10 65.0 29.48 CLASS 150
2 7.0 3.18 CLASS 150
3/4 2.0 0.91 CLASS 150
8 45.0 20.41 CLASS 150
1 3.0 1.36 CLASS 150
6 28.0 12.70 CLASS 150
1-1/2 5.0 2.27 CLASS 150

Size Chart Of ASTM A182 Grade F91 Slip On Flange

ASTM A182 F91 Flanges Manufacturer In China Offers A Variety Of Sizes.

NOMINAL PIPE SIZE (NPS) NUMBER OF BOLT HOLES FACE TO FACE (IN) OUTSIDE DIA (OD) (IN) FLANGE THICKNESS (IN) BOLT HOLE DIA (IN)
12 12 4.50 16.00 2.25 1.50
3 4 2.25 7.50 1.25 0.94
1/2 4 1.00 2.88 0.75 0.56
10 8 4.00 14.00 2.00 1.38
3/4 4 1.13 3.50 0.81 0.56
2 4 1.75 5.50 1.06 0.75
8 8 3.50 12.50 1.75 1.25
1 4 1.25 4.00 0.88 0.63
6 8 3.00 10.50 1.50 1.12
1-1/2 4 1.50 5.00 1.00 0.75

Pressure Rating Chart Of A182 F91 Threaded Flange

ASTM A182 F91 Flanges Manufacturer In China Provides Flanges With Pressure Ratings Ranging From 150 To 2500 Psi

TEMP (°C) PRESSURE RATING (CLASS 150) PRESSURE RATING (CLASS 1500) PRESSURE RATING (CLASS 900) PRESSURE RATING (CLASS 300) PRESSURE RATING (CLASS 600)
200 14.8 bar 195.2 bar 117.1 bar 39.0 bar 78.0 bar
350 11.5 bar 150.8 bar 90.5 bar 30.2 bar 60.3 bar
50 19.2 bar 250.2 bar 150.1 bar 50.0 bar 100.1 bar
300 12.5 bar 164.6 bar 98.8 bar 32.9 bar 65.9 bar
100 17.6 bar 231.0 bar 138.6 bar 46.2 bar 92.4 bar
250 13.6 bar 179.2 bar 107.5 bar 35.8 bar 71.7 bar
150 16.1 bar 211.3 bar 126.8 bar 42.3 bar 84.5 bar
-29 to 38 19.6 bar 255.3 bar 153.2 bar 51.1 bar 102.1 bar

What Are The Recommended Installation Procedures For ASTM A182 F91 Flanges ?

  • Surface Preparation
  • Handling of Flanges
  • Inspection Before Installation
  • Final Inspection After Installation
  • Gasket Installation
  • Bolt Selection and Alignment
  • Flange Alignment
  • Tightening the Bolts

What Are The Key Industries That Use Astm A182 F91 Flanges ?

Industries That Use Astm A182 F91 Flanges

Equivalent Grades of F91 Spectacle Blind Flanges

UNS

K90901

DIN

X 10 CrMoVNb 9 1

WERKSTOFF NR.

1.4903

ASME

SA182

JIS

G3456



A182 F91 Lap Joint Flanges Chemical Composition

ASTM A182 F91 Flanges Manufacturer In China Provides Accurate Chemical Composition Of Flanges

Manganese

0.03 – 0.60

CARBON

0.08-0.12

SULFER

0.010 Max

PHOSPHORUS

0.020 Max

SILICON

0.20-0.50

NICKEl

0.40 Max

CHROMIUM

8.0-9.5

Mechanical Properties of SA 182 Gr F91 Socket Weld Flange

Yield Strength

415 MPa

Hardness

250 HBW


Tensile Strength

585 MPa

Elongation

20 %



Temperature Rating Of ASTM A182 F91 Flanges

TEMP.°F 300# PSIG 75# PSIG 400# PSIG 150# PSIG
800 510 – 675 80
1150 65 – 85 –
200 750 130 1000 260
1100 95 – 130 –
750 530 – 710 95
300 720 115 965 230
1050 145 – 190 –
700 570 – 755 110
400 695 100 925 200
1000 215 – 290 20
500 665 85 885 170
950 320 – 425 35
600 605 70 805 140
900 450 – 600 50
650 590 60 785 125
850 485 – 650 65
-20~100 750 145 1000 290

TEMP.°F 1500# PSIG 900# PSIG 2500# PSIG 600# PSIG
800 2540 1525 4230 1015
1200 205 125 345 80
200 3750 2250 6250 1500
850 2435 1460 4060 975
1150 325 195 545 130
900 2245 1350 3745 900
300 3610 2165 6015 1445
750 2660 1595 4430 1065
1100 480 290 800 190
650 2940 1765 4905 1175
400 3465 2080 5775 1385
1050 720 430 1200 290
500 3325 1995 5540 1330
700 2840 1705 4730 1135
1000 1080 650 1800 430
600 3025 1815 5040 1210
950 1595 955 2655 640
-20~100 3750 2250 6250 1500

What Are The Techniques For Finishing Astm A182 F91 Flanges ?

Techniques For Finishing Astm A182 F91 Flanges

Techniques For Finishing Astm A182 F91 Flanges

  • Nondestructive Testing (NDT)
  • Hot Forging
  • Blasting
  • Heat Treatment
  • Coating
  • Machining
  • Surface Grinding and Polishing

Difference Between ASTM A182 F91 Flanges VS ASTM A350 LF2 Flanges

ASTM A182 F91 Flanges ASTM A350 LF2 Flanges
Material Alloy steel, carbon steel, or low alloy steel Low-carbon alloy steel
Uses Oil and gas transmission lines Shipbuilding, oil and gas transport in cold weather
Properties Higher mechanical properties than carbon steel, better corrosion resistance Stronger and corrosion resistant at low temperatures under high pressure
Difference ASTM A182 F91 Flanges VS ASTM A350 LF2 Flanges

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