Alloy Steel Flanges Manufacturer

Global Steel is a reputed Alloy Steel Flange manufacturer, Supplier, and Stockist. These Alloys Steel flanges are available in several grades which include, F1, F5, F9, F11, F22, F91, etc., all of these grades are has a certain amount of chemical composition.

Table Of content

These Alloy Steel Pipe Flanges have a variety of amazing qualities to provide, like Abrasive coating, Tamper proof, Protected, Adequate raw material, Efficient, Perfect finish, Longer life, Accurate dimension, and others. We also provide these products in customized sizes and forms to our clients. Flanges are forged or cast rings that are used to connect parts of a pipe or any type of machine requiring an intermediate connecting point. Aside from carbon, this alloy steel includes significant amounts of Nickel, Manganese, Chromium, Silicon, Tungsten, Vanadium, and Molybdenum. Furthermore, they are fortified with trace amounts of elements like sulphur, silicon, manganese, and phosphorous, which aid in boosting hardness, strength, chemical resistance, and other properties. 

The Solution annealing on these flanges is not necessary because the mechanical properties are shown in the built state. These Alloy Steel Flanges are made from chromium, and they are used to resist scaling at temperatures greater than 1100 degrees.

These flanges can withstand wind exposure, pollution from industrial processes, and elevated temperatures, which are closer to the sea, which is the leading cause of saltwater pollution. Alloy Steel Flanges have the highest chromium content, which makes them beneficial to wet corrosion resistance. These flanges also resist scaling at high temperatures.  

Once these flanges have been fabricated, they are forwarded for testing, where numerous destructive tests are performed to ensure that they are free of damage and of the highest quality. We value the packing among these products since providing a flawless product is vital to us.

What types of Alloy Steel Flanges are Available?

Various types of alloy steel flanges are available to suit different piping requirements. Common types include weld neck flanges, slip-on flanges, blind flanges, socket weld flanges, threaded flanges, and lap joint flanges. These flanges come in different sizes, pressure ratings, and facing options, allowing for flexible installation and assembly of piping systems.

Can Alloy Steel Flanges be used in low-temperature applications?

Yes, alloy steel flanges can be used in low-temperature applications, depending on the specific grade of alloy steel used. Some alloy steels are designed to maintain strength & toughness even at low temperatures. It is important to select the appropriate alloy steel grade for sub-zero temperature applications, such as ASTM A350 LF2.

What are the temperature limitations of Alloy Steel Flanges?

The temperature limitations of alloy steel flanges depend on the specific grade of alloy steel used. Some alloy steels can withstand high temperatures up to 1000°C (1832°F) or even higher making them suitable for power generation & petrochemicals applications.

Specification of Alloy Steel Flanges

Standards ASTM A182 / ASME SA182
Dimensions ANSI/ASME B16.5, B16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc.
Standard ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc
Size 1/2″ (15 NB) to 48″ (1200NB)
Class / Pressure 150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc.
Flange Face Type Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ)
Alloy Steel A182 F1 Flanges

Manufacturing Standards

ASME/ANSI B16.5 Blind Flange, High Hub Blind Flange, Slip on Flange, Welding Neck Flange, Socket Weld Flange, Ring Type Joint Flange, Lap Joint Flange, Threaded Flange
PRESSURE CLASS 150, 300, 400, 600, 900, 1500, 2500
ASME/ANSI B16.47 Blind Flange [Series A & B],Welding Neck Flange
PRESSURE CLASS 75, 150, 300, 400, 600, 900
ASME/ANSI B16.36 Orifice Flange
PRESSURE CLASS 300, 400, 600, 900, 1500, 2500
BS 4504 SEC 3.1 Plate Flange, Loose Plate Flange, Loose Plate With Weld Neck Flange, Blank Flange, Welding Neck Flange, Hubbed Slip on Flange, Hubbed Threaded Flange, Lapped Pipe End Flange,
PRESSURE CLASS PN 2.5 TO PN 40
BS 4504[PART 1] Plate Flange, Loose Plate With Weld On Plate Collar, Blank Flange, Welding Neck Flange, Hubbed Slip-On Hubbed Threaded,
PRESSURE CLASS PN 2.5 TO PN 400
BS 1560 BOSS Plate Flange, Loose Plate With Weld On Plate Collar, Blank Flange, Welding Neck Flange, Hubbed Slip-On Hubbed Threaded,
PRESSURE CLASS 150, 300, 400, 600, 900, 1500, 2500
BS10 Welding Neck Flange, Plate Slip-On Flange, Screwed Boss Flange, Slip-On Boss Flange, Blind Flange
TABLE D, E, F, H
DIN FLANGES DIN 2527, 2566, 2573, 2576, 2641,2642, 2655, 2656, 2627, 2628, 2629, 2631, 2632, 2633, 2634, 2635, 2636, 2637,2638, 2673
PRESSURE CLASS PN 6 TO PN 100

Different Types

Alloy Steel Slip On Flanges

Alloy Steel Slip On Flanges

Alloy Steel Blind Flanges

Alloy Steel Blind Flanges

Alloy Steel Socket Weld Flanges

Alloy Steel Socket Weld Flanges

Alloy Steel Weld Neck Flanges

Alloy Steel Weld Neck Flanges

Alloy Steel Reducing Flanges

Alloy Steel Reducing Flanges

Alloy Steel Orifice Flanges

Alloy Steel Orifice Flanges

Contact us to get a quick quote for your requirement.

We offer These Alloy Steel Flanges as per DIN, ASTM, ASME, BS, EN, JIS or ANSI Standard.

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Available Stock

  • ASME B16.47 Crmo Spades Ring Spacers Flanges
  • Alloy Steel Lap Joint Flanges
  • Alloy Steel Plate Flange
  • Type ASME SA182 Alloy Steel Industrial Forged Flanges
  • Alloy Steel Male & Female Flanges
  • Alloy Steel Nipoflange
  • Chrome Molybdenum Steel Pipe Flange
  • Chromium Molybdenum Tongue Flanges
  • CrMo Flanges
  • Cr-Mo Expander Flanges
  • Alloy Steel Lapped Joint Flanges
  • Alloy Steel BS Standard Table E
  • ASME SA182 Alloy Steel 150 LBS Threaded Flanges
  • Alloy Steel British Standard Table D Pipe Flanges
  • Chrome Molybdenum Long Welding Neck Flange
  • Chrome Moly Spectacle Blind Flanges
  • Alloy Steel Flanges
  • Alloy Steel 1500 LBS Flanges
  • Cr-Mo Nipo Flanges
  • Cr-Mo Spades Ring Spacers Flanges
  • Alloy Steel PN 10 Flange

Weight Chart

15mm (1/2″) Alloy Steel Flanges Weight Chart

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

Dimensions

AMERICAN SOCIETY OF MECHANICAL ENGINEERS (ASME)
  • ASME B1.20.1, Pipe Threads, General Purpose
  • ASME B16.1, Cast Iron Flanges and Flanged Fittings Classes 25, 125 and 250
  • ASME B16.5, Pipe Flanges and Flanged Fittings NPS 1/2 Through NPS 24
  • ASME B16.11, Forged Fittings, Socket Welding and Threaded
  • ASME B16.25, Buttwelding Ends
  • ASME B16.36, Orifice Flanges
  • ASME B16.47, Large Diameter Steel Flanges NPS 26 Through NPS 60
  • ASME B31.1, Power Piping
  • ASME B31.3, Process Piping
  • ASME B46.1, Surface Texture (Surface Roughness, Waviness, and Lay)

Pressure Rating

ANSI/ASME B16.34 PRESSURE RATING CHART
Temperature °F 150# 300# 400# 600# 900# 1500# 2500#
-20 to 100 275 720 960 1440 2160 3600 6000
200 230 600 800 1200 1800 3000 5000
300 205 540 720 1080 1620 2700 4500
400 190 495 660 995 1490 2485 4140
500 170 465 620 930 1395 2330 3880
600 140 435 580 875 1310 2185 3640
650 125 430 575 860 1290 2150 3580
700 110 425 565 850 1275 2125 3540
750 95 415 555 830 1245 2075 3460
800 80 405 540 805 1210 2015 3360
850 65 395 530 790 1190 1980 3300
900 50 390 520 780 1165 1945 3240
950 35 380 510 765 1145 1910 3180
1000 20 320 430 640 965 1605 2675
1050 20 310 410 615 925 1545 2570
1100 20 255 345 515 770 1285 2145
1150 20 200 265 400 595 995 1655
1200 20 155 205 310 465 770 1285
1250 20 115 150 225 340 565 945
1300 20 85 115 170 255 430 715
1350 20 60 80 125 185 310 515
1400 20 50 65 95 145 240 400
1450 15 35 45 70 105 170 285
1500 10 25 35 55 80 135 230

Chemical Structure

Grade C Mn P S Si Mo Cb
F1 0.28 0.60 – 0.90 0.045 0.045 0.15 – 0.30 0.44-0.65 –

Mechanical Properties

Grade

Tensile Strength (MPa) min Yield Strength 0.2% Proof (MPa) min Elongation (% in 50mm) min Hardness
Rockwell B (HR B) max Brinell (HB) max
F1 485 275 20 – 143-192

We Serve Application Industry

Application Industry

ANSI / ASME 16.5, 16.48, 16.47 Flanges applications are as diverse as the industries they serve driven primarily by the aerospace, railway, construction and automotive industries with petrochemical, nuclear, medical, Oil & Gas, Chemical, Pharmaceutical, Food & Beverage, Nuclear, Thermal Power plants, Paper and Pulp, marine and mining, etc.

Oil & Gas Industry

Petrochemical Industry

Power Generation Industry

Chemical Industry

We Export Alloy Steel Flanges Across the Globe

Greece, India, New Zealand, Venezuela, Turkey, Indonesia, Ecuador, Kazakhstan, Belarus, Libya, Thailand, United Arab Emirates, Mexico, Oman, columbia, Malaysia, Ireland, Lithuania, China, Bhutan, Bangladesh, Ghana, Argentina, Qatar, Trinidad & Tobago, Gambia, Netherlands, United States, Australia, Tibet, Gabon, Lahore, Israel, Egypt, Estonia, Finland, Iran, Nigeria, Morocco, Italy, Poland, Lebanon, Taiwan, Romania, Mongolia, France, Nepal, Azerbaijan, South Korea, Spain, South Africa, Saudi Arabia, Serbia, Afghanistan, Croatia, Czech Republic, Slovakia, Iraq, Bahrain, Austria, Peru, Colombia, Zimbabwe, Japan, Namibia, Canada, Vietnam, Kenya, Puerto Rico, Sweden, Bulgaria, Bolivia, Singapore, Switzerland, United Kingdom, Norway, Hong Kong, Jordan, Brazil, Philippines, Costa Rica, Denmark, Yemen, Germany, Pakistan, Portugal, Algeria, Sri Lanka, Kuwait, Ukraine, Russia, Tunisia, Algiera, Hungary, Angola, Macau, Chile, Belgium.

Domestic Supply Alloy Steel Flanges

Jamshedpur, Indore, Ranchi, Faridabad, New Delhi, Ernakulam , Surat, Hyderabad, Ahmedabad, Bhopal, Chennai, Visakhapatnam, Jaipur, Nagpur, Nashik, Pimpri-Chinchwad, Kanpur, Kolkata, Bengaluru, Thiruvananthapuram, Chandigarh, Haryana, mumbai, Rajkot, Howrah, Pune, Navi Mumbai, Thane, Gurgaon, Ludhiana, Noida, Secunderabad.

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Global Steelindia

Global Steel is a significant manufacturer and exporter of all ferrous and non-ferrous metals. As a pioneer and leader in the industry, Global Steel is at the forefront of technology and research.

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Shop No.6, Sonarika Bldg, 25/C, Chandawadi, Cawasji Patel Tank, Mumbai, Maharashtra 400004

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