ASTM A182 F12 Flanges

ASTM A182 Alloy Steel F12 Flanges are critical components in various industrial applications, known for their durability and exceptional performance under high-pressure and high-temperature conditions. These flanges are designed to connect pipes, valves, or other equipment, creating a secure and leak-proof connection within complex piping systems. The “F12” designation indicates the specific grade of alloy steel used in these flanges, with F12 representing a low-alloy steel suitable for high-temperature service.

Key characteristics and features of ASTM A182 Alloy Steel F12 Flanges:

1. Alloy Steel Composition: F12 flanges are crafted from low-alloy steel, which contains elements like chromium and molybdenum. These alloying elements enhance the flange’s resistance to corrosion and provide excellent high-temperature strength.

2. High-Temperature Service: These flanges are specifically designed for applications where high temperatures are a concern. They can withstand elevated temperatures without losing their structural integrity.

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3. Corrosion Resistance: The chromium content in F12 alloy steel provides superior corrosion resistance, making these flanges suitable for use in harsh environments where exposure to corrosive substances is common.

4. Pressure Ratings: F12 flanges come in various pressure classes, ranging from 150 to 2500. This ensures that they can be used in a wide range of applications with varying pressure requirements.

5. Versatility: ASTM A182 Alloy Steel F12 Flanges are available in various types, including weld neck, slip-on, socket weld, blind, and threaded flanges. This variety of flange types allows for flexibility in designing and installing piping systems.

6. Standard Compliance: These flanges are manufactured in compliance with ASTM A182, which ensures their quality and conformity to industry standards. This standard defines the chemical composition, mechanical properties, and heat treatment requirements for alloy steel flanges.

7. Sizes: F12 flanges are available in different sizes, ranging from 1/2″ to 60″ or even larger. This extensive size range makes them suitable for a wide array of applications.

8. Applications: ASTM A182 Alloy Steel F12 Flanges are commonly used in industries such as petrochemical, oil and gas, power generation, and chemical processing, where high-temperature and high-pressure conditions are prevalent.

9. Customization: Manufacturers often offer customization options for F12 flanges, allowing customers to specify particular dimensions, facing types, and other requirements to meet their unique project needs.

Specification For Alloy Steel A182 F12 Flanges

StandardsASTM A182 / ASME SA182
DimensionsANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc.
Size1/2″ (15 NB) to 48″ (1200NB)
Class150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc.
StandardANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc.
Flange Face TypesFlate Face (FF), Raised Face (RF), Ring Type Joint (RTJ)
ASTM A182 F12 Flanges

STOCKIST & SUPPILERS FOR ALLOY STEEL A182 F12 FLANGES IN INDIA, CUSTOM SIZES ASTM A182 F12 CHROME MOLY STEEL SORF, WNRF, Blind Flanges AS PER CLIENT REQUIREMENT

Equivalent Grades Of ASTM A182 F12 Alloy Steel Flanges

STANDARD UNS WERKSTOFF NR. DIN EN
Alloy Steel F12 K11564 1.7335 1Cr-1/2Mo

Various Types of Alloy Steel A182 F12 Flanges

Carbon Steel Slip on Flanges

ASTM A182 F12 Slip On Flanges

  • Chromium Molybdenum A182 F12 Slip On Flanges
  • ASTM 182 F12 Alloy Steel Slip On Flanges
  • ASTM A182 Chrome Moly F12 SORF Flange
  • A182 AS Grade F12 Slip On Flanges
  • ANSI B16.5 CrMo F12 Slip On Flanges
  • Alloy Steel A182 Gr.F12 SOFF Flanges
  • Cr-Mo ASTM A182 F12 Slip On Flange
Carbon Steel Weld Neck Flanges

ASTM A182 F12 Socket Weld Flanges

  • Cr-Mo ASTM A182 F12 SocketWeld Flange
  • Alloy Steel A182 F12 SocketWeld Flanges
  • ASTM A182 Chromium Molybdenum Grade F12 SWRF Flange
  • A182 AS F12 Socket Weld Flanges
  • Chrome Moly A182 Gr.F12 SWFF Flanges
  • ASTM 182 F12 Alloy Steel Socket Weld Flanges
  • ANSI B16.5 CrMo F12 Socket Weld Flanges
Carbon Steel Blind Flanges

ASTM A182 F12 Blind Flanges

  • Alloy Steel ASTM A182 F12 Blind Flange
  • Cr-Mo A182 F12 Blind Flanges
  • A182 AS F12 Blind Flanges
  • ASTM A182 Chromium Molybdenum F12 BLRF Flange
  • ANSI B16.5 AS F12 Blind Flanges
  • ASTM 182 F12 Alloy Steel Blind Flanges
  • Chrome Moly A182 Gr.F12 BLFF Flanges
Carbon Steel SocketWeld Flanges

ASTM A182 F12 Weld Neck Flanges

  • ASTM 182 F12 Alloy Steel Weld Neck Flanges
  • Alloy Steel ASTM A182 F12 Weld Neck Flange
  • A182 AS F12 Weld Neck Flanges
  • Cr-Mo A182 F12 Weld Neck Flanges
  • ASTM A182 Chromium Molybdenum Grade F12 WNRF Flange
  • Chrome Moly A182 Gr.F12 WNFF Flanges
  • ANSI B16.5 AS F12 Weld Neck Flanges
Carbon Steel A105 Threaded Flanges

ASTM A182 F12 Threaded Flanges

  • ASTM 182 F12 Alloy Steel Threaded Flanges
  • Cr-Mo A182 F12 Threaded Flanges
  • ASTM A182 Chromium Molybdenum Grade F12 Screwed Flange
  • ANSI B16.5 AS F12 Threaded Flanges
  • A182 AS F12 Threaded Flanges
  • Chrome Moly A182 Gr.F12 Screwed Flanges
  • Alloy Steel ASTM A182 F12 Threaded Flange
Carbon Steel Lap Joint Flanges

ASTM A182 F12 Lap Joint Flanges

  • A182 AS F12 Lap Joint Flanges
  • Cr-Mo A182 F12 Lap Joint Flanges
  • Alloy Steel ASTM A182 F12 Lap Joint Flange
  • ASTM 182 F12 Alloy Steel Lap Joint Flanges
  • Chrome Moly A182 Gr.F12 LJ Flanges
  • ASTM A182 Chromium Molybdenum F12 Lap Joint Flange
  • ANSI B16.5 AS F12 Lap Joint Flanges

Ready Stock Of Alloy Steel A182 F12 Flanges

  • ASME B16.5 Class 150 Alloy Steel F12 Flanges
  • A182 F12 Chrome Moly Spacer Ring Flanges
  • ASTM A182 Grade F12 CrMo Reducing Flanges
  • AS A182 Gr F12 Flanges
  • A182 F12 Chromium Molybdenum Pipe Flange
  • Chrome Moly A182 F12 Long Weld Neck Flanges
  • Cr-Mo A182 Gr F12 Flat Face Flange
  • ASTM A182 F12 Alloy Steel Square Flanges
  • Alloy Steel ASTM A182 Gr.F12 DIN Flanges
  • AS A182 F12 Tongue & Groove Flanges
  • ASTM A182 F12 Alloy Steel Raised Face Flanges
  • ASTM A182 F12 Cr-Mo Spectacle Blind Flanges
  • A182 CrMo F12 Slip On Flat Face Flanges
  • ASTM A182 F12 Alloy Steel Ring Type Joint Flanges
  • A182 F12 Alloy Steel SORTJ Flange
  • ASTM A182 Alloy Steel F12 Lap Joint Flanges
  • AS ASTM A182 F12 Orifice Flange
  • ANSI B16.5 Alloy Steel F12 Class 300 Flanges Dimensions
  • Cr-Mo A182 F12 SWRTJ Flanges
  • CrMo A182 F12 Nipoflange
  • ASTM A182 Gr.F12 AS Large Diameter Flange
  • A182 F12 Chromium Molybdenum Blind Flange
  • Chrome Moly A182 F12 Forged Flanges
  • ASTM A182 F12 CrMo Male & Female Flanges
  • Alloy Steel A182 Gr F12 Screwed Flanges
  • Cr-Mo ASTM A182 Grade F12 Flangeolet
  • Chrome Moly ASTM A182 F12 Flanges
  • Alloy Steel A182 F12 BLRTJ Flanges
  • A182 F12 Chromium Molybdenum Flange Pressure Rating
  • Chromium Molybdenum A182 F12 NPT Threaded Flanges
  • ASTM A182 Gr.F12 CrMo Exhaust Flanges
  • A182 F12 Alloy Steel Custom Flanges
  • ASTM A182 AS Gr F12 Paddle Blank and Spacer
  • Chrome Moly A182 F12 Plate Flange
  • Cr-Mo A182 F12 SORF Flanges
  • Alloy Steel ASTM A182 F12 Industrial  Flange
  • ASTM A182M Alloy Steel Grade F12 Flange

ASTM A182 F12 Alloy Steel Flange Dimensions

NPS
(in.)
Alloy Steel A182 Flange Dimensions
Dia. of
Flange
(in.)
No.
of
Bolts
Dia. of
Bolts
(in.)
Dia. of
Bolt Holes
(in.)
Bolt
Circle
(in.)
1/43-3/841/20.622-1/4
1/23-1/241/20.622-3/8
3/43-7/841/20.622-3/4
14-1/441/20.623-1/8
1-1/44-5/841/20.623-1/2
1-1/2541/20.623-7/8
2645/80.754-3/4
2-1/2745/80.755-1/2
37-1/245/80.756
3-1/28-1/285/80.757
4985/80.757-1/2
51083/40.888-1/2
61183/40.889-1/2
813-1/283/40.8811-3/4
1016127/8114-1/4
1219127/8117
14211211.1218-3/4
1623-1/21611.1221-1/4
1825161-1/81.2522-3/4
2027-1/2201-1/81.2525
2432201-1/41.3829-1/2

Size Chart of ASTM A182 F12 Alloy Steel Flanges

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

Weight Chart of ASTM A182 F12 Alloy Steel Flanges

Pipe Normal Diam. O.D. Flange Thk. Of Flange Min Diam.
of
Hub
Diameter of Raised Face Length Hub.Y Thread Length Diam.
of Bolt
Circle
Diam.
of Bolt
Holes
Number
of Bolts
Diam. of
Bolts
(inch)
KG LB
inch dn O C X G Y T BC BH BN BD
1/2″ 15 89.00 11.20 30.20 35.10 15.70 15.70 60.50 15.80 4 1/2″ 0.4 0.9
3/4″ 20 98.50 12.70 38.10 42.90 15.70 15.70 69.90 15.80 4 1/2″ 0.7 1.5
1″ 25 108.00 14.20 49.30 50.80 17.50 17.50 79.30 15.80 4 1/2″ 0.8 1.8
1-1/4″ 32 117.50 15.70 58.70 63.50 20.60 20.60 88.90 15.80 4 1/2″ 1.2 2.6
1-1/2″ 40 127.00 17.50 65.00 73.20 22.40 22.40 98.60 15.80 4 1/2″ 1.5 3.3
2″ 50 152.50 19.10 77.70 91.90 25.40 25.40 120.70 19.10 4 5/8″ 2.3 5.1
2-1/2″ 65 178.00 22.40 90.40 104.60 28.40 28.40 139.70 19.10 4 5/8″ 3.7 8.1
3″ 80 190.50 23.90 108.00 127.00 30.20 30.20 152.40 19.10 4 5/8″ 4.1 9
3-1/2″ 90 216.00 23.90 122.20 139.70 31.80 31.80 177.80 19.10 8 5/8″ 5.1 11.2
4″ 100 228.50 23.90 134.90 157.20 33.30 33.30 190.50 19.10 8 5/8″ 5.9 13
5″ 125 254.00 23.90 163.60 185.70 36.60 36.60 215.90 22.40 8 3/4″ 7 15.4
6″ 150 279.50 25.40 192.00 215.90 39.60 39.60 241.30 22.40 8 3/4″ 8.4 18.5
8″ 200 343.00 28.40 246.10 269.70 44.50 44.50 298.50 22.40 8 3/4″ 13 28.6
10″ 250 406.50 30.20 304.80 323.90 49.30 49.30 362.00 25.40 12 7/8″ 18 39.5
12″ 300 482.50 31.80 365.30 381.00 55.60 55.60 431.80 25.40 12 7/8″ 29 64
14″ 350 533.50 35.10 400.10 412.80 57.20 57.20 476.30 28.50 12 1″ 39 86
16″ 400 597.00 36.60 457.20 469.90 63.50 63.50 539.80 28.50 16 1″ 47 103
18″ 450 635.00 39.60 505.00 533.40 68.30 68.30 577.90 31.80 16 1 1/8″ 57 126
20″ 500 698.50 42.90 558.80 584.20 73.20 73.20 635.00 31.80 20 1 1/8″ 76 167
24″ 600 813.00 47.80 663.40 692.20 82.60 82.60 749.30 35.10 20 1 1/4″ 97 214

ASTM A182 F12 AS Flanges Chemical Composition

Grade C Mn P s Si Ni Cr Mo Cb
F12 0.05-0.15 0.30-0.60 0.045 0.045 0.50 max 0.80-1.25 0.44-0.65

ASTM A182 Alloy Steel F12 Flanges Mechanical Properties

Grade Tensilee Strength (Mpa) Yield Strength (Mpa) Elongation % Hardness
Rockwell B (HR B) max Brinell (HB) max
F12 205 415 20 121-174

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