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ASTM A182 Grade F91 Flanges

Trusted Manufacturer of SA 182 Gr F91 Class 2 Blind Flanges in India, At Best Cost


ASTM A182 Grade F91


The A 182 Gr F91 Steel Flanges can also be available in many different standards some of them include ASME B16.47, B16.5, B16.48. The thickness and width of the flanges depend on the various standards. Sizes of flanges vary in between ½ inches and 36 inches.

ASTM A182 Grade F91 Flanges Manufacturer in India, There are also different shapes and type such as the Alloy Steel A182 Grade F91 Weldneck RF Flanges. The weld neck raised face flanges have a raised face and welded neck which enhance gripping of the pipe. There are raised face, flat face and the ring type joint flanges. There are also different functional types such as the A182 F91 Steel Slip On Flanges which allow the pipes to slip on the flanges so that the connection location is precise. This type of flanges can be used with seamless pipes for precise applications.

These A182 F91 Alloy Steel Blind Flanges are used for closing a connection either wholly or for sometime. The pressure classes of the flanges range from 150 through 2500 and pressure numbers vary from PN6 through to PN64. Customized ASTM A182 F91 Flanges developed and supplied by Regal Sales Corporation is available in various sizes and types. We continue with more related content as follows: If you need any other information related to different types and prices of a A182 F91 RTJ Flanges then, feel free to contact at any time.


Table of Content


Flange types


Alloy Steel A182 F91 Flanges

Alloy Steel A182 F91 Flanges

Alloy Steel F91 Slip On Flanges

Alloy Steel F91 Slip on Flanges

ASME SA182 Gr F91 Flange

ASME SA182 Gr F91 Flange


What Does Alloy Steel A182 F91 Flanges Means?


ASTM A182 F91 Alloy Steel Flanges are intended for use in high service temperature applications. The flanges are capable to provide high stresses since the minimum yield strength of the A182 F91 material is 415MPa while that of the tensile strength is 585MPa. Other contents of the material also include Carbon, Manganese, Silicon, Sulfur, Phosphorus,Chromium and Molybdenum.

We are a leading ASTM A182 Grade F91 Flanges Manufacturer in India, delivering high-quality products to various countries, including Qatar, Germany, Egypt, Malaysia, Netherlands, Vietnam, Kuwait, Saudi Arabia, Nigeria, and Thailand.


Preferred Supplier of Alloy Steel ASTM A182 Grade F91 Flanges Available in in All Sizes and Diameter, Check Specification


Specifications Of ASTM A182 Grade F91


Size

Size

  • PN 2.5 – PN 400
  • NPS: ½" to 48"
  • 15NB – 1500NB

Applications

Applications

  • Petrochemicals Industry
  • Pharmaceuticals
  • Automotive, Aviation
  • Defence, Aerospace
Benefits

Features

  • Excellent Ductility
  • Corrosion Resistant
  • Compatible With Hgh Pressures
  • Versatile Uses

Pressure

Pressure

  • CL 1500 - 2500
  • CL 300 - 400
  • CL 125 - 150
  • CL 600 - 900
finish

Finishing

    • Spiral Serrated
    • Smooth Finish
    • Concentric Serrated
    • Cold Water Finish
    • Mirror , Serrated Finish
Threads type

Threads type

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


Connections

Connections

  • Threaded
  • Welded


coating

Surface Coating

  • Cadmium, Galvanized
  • Black phosphating treatment
  • Teflon, Xylan, Zinc
  • Black Oxide
  • Others Upon Request
Certification

Certification

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


Heat Treatment

Thickness

  • SCH 160/ 180
  • SCH 120/ 140
  • SCH 10/ 20/ 40
  • SCH 60/ 80/ 100
Standard

Standard

  • ASME B16.36
  • ASME B16.47
  • ASME B16.48
  • ASME B16.5
Disadvantages

Disadvantages

  • Welding Complexities
  • Ductility Limited In Some Condition
  • Initial Higher Cost


Testing Methods

Testing Methods

  • Hardness test
  • PMI test
  • Visual Inspection
  • Tensile test
  • Impact test
Production process

Production process

  • Plating
  • Forging
  • Casting
  • Machining

Packaging

Packaging Methods

  • Plastic
  • Wooden
  • Carton



Types Of ASTM A182 Grade F91


SA182 F91 Closet Flange

SA182 F91 Closet Flange

ASTM A182 F91 Alloy Steel Square Flange

ASTM A182 F91 Alloy Steel Square Flange

A 182 F91 Blind Flange

A 182 F91 Blind Flange

ASTM A182 F91 Steel Threaded Flanges

ASTM A182 F91 Steel Threaded Flanges

SA 182 F91 Industrial Flange

SA 182 F91 Industrial Flange

ASTM A182 F91 Steel Lap Joint Flange

ASTM A182 F91 Steel Lap Joint Flange

SA182F91 Reducing Flange

SA182F91 Reducing Flange

ASTM A182 Gr F91 Raised Face Flange

ASTM A182 Gr F91 Raised Face Flange

A182 F91 SORF Flange

A182 F91 SORF Flange

SA 182 F91 WNRF Flange

SA 182 F91 WNRF Flange

A182 Gr F91 Flat Flanges

A182 Gr F91 Flat Flanges

SA 182 Gr F91 Orifice Flange

SA 182 Gr F91 Orifice Flange

ASTM A182 F91 Slip On Flange

ASTM A182 F91 Slip On Flange

ASTM A182 Gr F91 Socket Weld Flange

ASTM A182 Gr F91 Socket Weld Flange

SA 182 gr F91 BLRF Flange

SA 182 gr F91 BLRF Flange

F91 Alloy Steel Plate Flange

F91 Alloy Steel Plate Flange


Stock of Alloy Steel F91 Flanges & ASME SA182 F91 Flanges Availavle in Different Dimensions, Check Dimension Chart


Stud & Bolt Table Of ASTM A182 F91 Steel Slip On Flange


Class 600 Flanges Class 300 Flanges Class 150 Flanges
NPS # Bolts And Studs Stud Length Diameter of Bolts And Studs # Bolts And Studs Stud Length Diameter of Bolts And Studs # Bolts And Studs Stud Length Diameter of Bolts And Studs
1/4 RF RTJ 1/16 RF RTJ 1/16 RF RTJ
8 12 7-1/2 1.13 7-3/4 12 5-1/2 0.88 6 8 4-1/4 0.75 4-3/4
4 8 5-3/4 0.88 5-3/4 8 4-1/2 0.75 5 8 3-1/2 0.63 4
3 8 5 0.75 5 8 4-1/4 0.75 4-3/4 4 3-1/2 0.63 4
3-1/2 8 5-1/2 0.88 5-1/2 8 4-1/4 0.75 5 8 3-1/2 0.63 4
2 8 4-1/4 0.63 4-1/4 8 3-1/2 0.63 4 4 3-1/4 0.63 3-3/4
1 4 3-1/2 0.63 3-1/2 4 3 0.63 3-1/2 4 2-1/2 0.50 3
1-1/4 4 3-3/4 0.63 3-3/4 4 3-1/4 0.63 3-3/4 4 2-3/4 0.50 3-1/4
16 20 10 1.50 10 20 7-1/2 1.25 8 16 5-1/4 1.00 5-3/4
1/2 4 3 0.50 3 4 2-1/2 0.50 3 4 2-1/4 0.50 –
2-1/2 8 4-3/4 0.75 4-3/4 8 4 0.75 4-1/2 4 3-1/2 0.63 4
18 20 10-3/4 1.63 10-3/4 24 7-3/4 1.25 8-1/4 16 5-3/4 1.13 6-1/4
10 16 8-1/2 1.25 8-1/2 16 6-1/4 1.00 6-3/4 12 4-1/2 0.88 5
14 20 9-1/4 1.38 9-1/4 20 7 1.13 7-1/2 12 5-1/4 1.00 5-3/4
5 8 6-1/2 1.00 6-1/2 8 4-3/4 0.75 5-1/4 8 3-3/4 0.75 4-1/4
6 12 6-3/4 1.00 6-3/4 12 4-3/4 0.75 5-1/2 8 4 0.75 4-1/2
24 24 13 1.88 13-1/4 24 9 1.50 10 20 6-3/4 1.25 7-1/4
20 24 11-1/4 1.63 11-1/2 24 8 1.25 8-3/4 20 6-1/4 1.13 6-3/4
3/4 4 3-1/2 0.63 3-1/2 4 3 0.63 3-1/2 4 2-1/2 0.50 –
12 20 8-3/4 1.25 8-3/4 16 6-3/4 1.13 7-1/4 12 4-3/4 0.88 5-1/4
1-1/2 4 4-1/4 0.75 4-1/4 4 3-1/2 0.75 4 4 2-3/4 0.50 3-1/4

Thickness Table Of A 182 F91 Blind Flanges


Thickness Table Of ASTM A182 Gr F91 Blind Flanges
NPS (Normal Pipe Sizes) Outside Daimeter (O.D.) XX Hvy Schedule 20 Schedule 120 Schedule 160 STD Wall Schedule 40 Schedule 10 Schedule 60 EXT Hvy Schedule 30 Schedule 100 Schedule 80 Schedule 140
1 ½ 1.9 0.4 ... ... 0.281 0.145 0.145 0.109 ... 0.2 ... ... 0.2 ...
10 10.75 1 0.25 0.844 1.125 0.365 0.365 0.165 0.5 0.5 0.307 0.719 0.594 1
12 12.75 1 0.25 1 1.312 0.375 0.406 0.18 0.562 0.5 0.33 0.844 0.688 1.125
3 3.5 0.6 ... ... 0.438 0.216 0.216 0.12 ... 0.3 ... ... 0.3 ...
3 ½ 4 0.636 ... ... ... 0.226 0.226 0.12 ... 0.318 ... ... 0.318 ...
4 4.5 0.674 ... 0.438 0.531 0.237 0.237 0.12 ... 0.337 ... ... 0.337 ...
22 22 .... ... .... .... 0.375 ... 0.25 ... 0.5 ... ... ... ....
24 24 .... 0.375 1.812 2.344 0.375 0.688 0.25 0.969 0.5 0.562 1.531 1.219 2.062
5 5.563 0.75 ... 0.5 0.625 0.258 0.258 0.134 ... 0.375 ... ... 0.375 ...
½ 0.84 0.294 ... ... 0.188 0.109 0.109 0.083 ... 0.147 ... ... 0.147 ...
¾ 1.05 0.308 ... ... 0.219 0.113 0.113 0.083 ... 0.154 ... ... 0.154 ...
6 6.625 0.864 ... 0.562 0.719 0.28 0.28 0.134 ... 0.432 ... ... 0.432 ...
8 8.625 0.875 0.25 0.719 0.906 0.322 0.322 0.148 0.406 0.5 0.277 0.594 0.5 0.812
14 14 ... 0.312 1.094 1.406 0.375 0.438 0.25 0.594 0.5 0.375 0.938 0.75 1.25
2 2.375 0.436 ... ... 0.344 0.154 0.154 0.109 ... 0.218 ... ... 0.218 ...
2 ½ 2.875 0.552 ... ... 0.375 0.203 0.203 0.12 ... 0.276 ... ... 0.276 ...
16 16 ... 0.312 1.219 1.594 0.375 0.5 0.25 0.656 0.5 0.375 1.031 0.844 1.438
26 26 .... .... .... .... 0.375 .... .... .... 0.5 .... .... .... ....
30 30 .... 0.5 .... .... 0.375 .... 0.312 .... 0.5 0.625 .... .... ....
36 36 .... 0.5 .... .... 0.375 0.75 0.312 .... 0.5 0.625 .... .... ....
40 40 .... .... .... .... 0.375 .... .... .... 0.5 .... .... .... ....
1 1.315 0.358 ... ... 0.25 0.133 0.133 0.109 ... 0.179 ... ... 0.179 ...
1 ¼ 1.66 0.382 ... ... 0.25 0.14 0.14 0.109 ... 0.191 ... ... 0.191 ...
42 42 …….. …….. …….. …….. 0.375 …….. …….. …….. 0.5 …….. …….. …….. ……..
18 18 ... 0.312 1.375 1.781 0.375 0.562 0.25 0.75 0.5 0.438 1.156 0.938 1.562
20 20 ... 0.375 1.5 1.969 0.375 0.594 0.25 0.812 0.5 0.5 1.281 1.031 1.75
48 48 …….. …….. …….. …….. 0.375 …….. …….. …….. 0.5 …….. …….. …….. ……..

Temperature Pressure Rating Chart Of SA 182 F91 Flanges


SA 182 F91 Flanges Pressure Chart
Temperature °F 2500# 900# 300# 400# 150# 600# 1500#
800 3360 1210 405 540 80 805 2015
650 3580 1290 430 575 125 860 2150
700 3540 1275 425 565 110 850 2125
1450 285 105 35 45 15 70 170
1500 230 80 25 35 10 55 135
300 4500 1620 540 720 205 1080 2700
-20 - 100 6000 2160 720 960 275 1440 3600
400 4140 1490 495 660 190 995 2485
1100 2145 770 255 345 20 515 1285
1150 1655 595 200 265 20 400 995
900 3240 1165 390 520 50 780 1945
200 5000 1800 600 800 230 1200 3000
1400 400 145 50 65 20 95 240
500 3880 1395 465 620 170 930 2330
950 3180 1145 380 510 35 765 1910
1050 2570 925 310 410 20 615 1545
750 3460 1245 415 555 95 830 2075
600 3640 1310 435 580 140 875 2185
850 3300 1190 395 530 65 790 1980
1250 945 340 115 150 20 225 565
1300 715 255 85 115 20 170 430
1200 1285 465 155 205 20 310 770
1350 515 185 60 80 20 125 310
1000 2675 965 320 430 20 640 1605

Dimensions Chart Of ASTM A182 F91 Alloy Steel Flanges


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

Weight Chart Of ASTM A182 Gr F91 Flanges


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

Find ASTM A182 F91 Alloy Steel Pipe Flanges & Alloy Steel A182 Grade F91 WNRF Flanges Density kg/m3 , View Equivalent Grades

UNS K90901 Plate Flanges Equivalent Standards


Germany

DIN

X10CrMoVNb91

Russia

WERKSTOFF NR.

1.4903

North America

UNS

K90901


View ANSI B16.5 Alloy F91 Flanges & SA 182 Gr F91 Steel Flanges Testing Methods Such as tensile testing, and chemical Composition

ASTM A182 F91 BLRF Flanges Chemical Compositions


8.0-9.5

Cr
0.30 – 0.60

Mn
0.4

Ni
0.85-1.05

Mo
0.01

S
0.20-0.50

Si

ASTM A182 Gr F91 Orifice Flanges Physical Properties


Property Value
Hardness (Rockwell C) 28 - 35 HRC
Density 7.75 g/cm³
Modulus of Elasticity 210 GPa
Poisson's Ratio ~0.3
Thermal Conductivity 25.5 W/m·K
Coefficient of Thermal Expansion 13.5 × 10⁻⁶ /°C

ASTM A182 F91 steel Flat Flanges Mechanical Properties


Description of Image 1

Elongation

20 - 25%

Description of Image 1

Tensile Strength

90000 psi

Description of Image 2

Melting Point

2552°F

Description of Image 2

Yield Strength

60000 psi


What Are The Corrosion Resistance Properties Of ASTM A182 F91 Flanges?


What Are The Corrosion Resistance Properties Of ASTM A182 F91 Flanges?

Which Environmental Conditions May Influence The Performance Of ASTM A182 F91 Flanges?


  • ➤ Humidity & Moisture
  • ➤ Contaminants
  • ➤ UV Exposure
  • ➤ Chemical Reactions

What Is The Flange Facing Type For ASTM A182 F91 Flanges?


What Is The Flange Facing Type For ASTM A182 F91 Flanges?


What Are The ASTM A182 F91 Flange Welding Specifications?


Guideline Details
Welding Process TIG, MIG, SMAW
Heat Input 1.5-2.5 kJ/mm
Interpass Temperature 150-200°C
Filler Material ER91 (TIG), E91 (SMAW)
Shielding Gas Argon , Argon-CO2
PWHT Temperature 730-790°C
Cooling Rate Slow cooling
Preheat Temperature 150-260°C
Inspection Visual, UT, X-ray, MT

Materials