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Flanges

Threaded Flange

Fortune Stainless Steel is acknowledged as a manufacturer, exporter & suppliers of Threaded Flange & Stainless steel Flanges (Gr. 304, 304L, 316, 316L) available in a variety or grades, materials, and finishes, in metric and inch sizes. These Threaded Flange are manufacture in different Material of Flanges like SORF Flanges, Carbon Steel Threaded Flanges, Stainless Steel Threaded Flanges, Alloy Steel Threaded Flanges, Duplex Steel Threaded Flanges, Inconel Threaded Flanges, Monel Threaded Flanges, Hastelloy Threaded Flanges, Copper Nickel Threaded Flanges in India & Asia, conform to Slip On specifications.

Threaded flanges are widely used in low pressure piping systems, as no welding is involved while connecting the flanges to pipes or other equipment. However, the flange may be welded around the joint after assembly, but it is not considered a satisfactory method of increasing its applications. Threaded flanges are also known as screwed flanges and are similar to slip-on flanges, but the bore is threaded to enable assembling without welding. Threaded pipe flanges are usually used with pipes that have external threads.


Threaded Flange, Threaded Forged Flanges, Screwed Flanges Production Range
Size: 1/2″ (15 NB) to 48″ (1200NB)
Standards: ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings
Pressure Ratings: Class 150, Class 300, Class 400, Class 600, Class 900, Class1500, Class 2500 | PN6, PN10, PN16, PN25, PN40, PN64 etc.

Carbon Steel Threaded Flanges: ASTM A105/A105N, A350 LF1, LF2 CL1/CL2, LF3 CL1/CL2, A694 F42, F46, F48, F50, F52, F56, F60, F65, F70, A516.60, 65, 70 (Spectacle Blind Flange, Spacer Ring/Spade Flange), Steel RST37.2, C22.8

Stainless Steel Threaded Flanges: ASTM A182 F202, F304/304L/304H, F316/316L, F316H, F316TI, F310, F321, F904L

Alloy Steel Threaded Flanges: ASTM A182 F1, F5, F9, F11, F22, F91

Special Alloy Threaded Flanges: Duplex, Super Duplex, Nickel Alloys

Flange Face Type: Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ)

Coating/Surface Treatment: Anti-rust Paint, Oil Black Paint, Yellow Transparent, Zinc Plated, Cold and Hot Dip Galvanized

Value Added Services: CNC Machining, Customised Flanges
Diameter : 1/2″ to 24″


Our range of industrial flanges are ideal for application in diverse industry for high pressure and temperature applications. These flanges are designed with precision for easy installation. Apart from standard flanges, we also offer custom designed flanges to meet the specific application requirements of the customers.

Stainless & Duplex Steel
Stainless & Duplex Steel flangesRange :
15 NB UP TO 600 NB IN 150 LBS , 300 LBS, 400 LBS , 600 LBS , 900 LBS , 1500 LBS , 2500 LBS / TABLE 2.5 , TABLE 6 , TABLE 10, TABLE 16,TABLE 25 , TABLE 40, TABLE 64, TABLE 160, TABLE 320, TABLE 400
Form :
Slip On , Socket Weld , Blind , Lapped , Screwed , Weld Neck , Reducing , Spectacle ,Slip On Boss , Plate , Plate Blank , Screwed Boss.
Stainless Steel :
ASTM / ASME SA 182 F 304 , 304L , 304H, 309H, 310H , 316 , 316H , 316L , 316 LN , 317 , 317L , 321 , 321H , 347H .
Duplex Steel :
ASTM / ASME SA 182 F 44 , F 45 , F51 , F 53 , F 55 , F 60 , F 61.
Carbon & Alloy Steel
Carbon & Alloy Steel flangesRange :
15 NB UP TO 600 NB IN 150 LBS , 300 LBS, 400 LBS , 600 LBS , 900 LBS , 1500 LBS , 2500 LBS / TABLE 2.5 , TABLE 6 , TABLE 10, TABLE 16,TABLE 25 , TABLE 40, TABLE 64, TABLE 160, TABLE 320, TABLE 400
Form :
Slip On , Socket Weld , Blind , Lapped , Screwed , Weld Neck , Reducing , Spectacle ,Slip On Boss , Plate , Plate Blank , Screwed Boss
Carbon Steel : ASTM / ASME A 105 , ASTM / ASME A 350 LF 2 .
Alloy Steel : 
ASTM / ASME A 182 GR F 5, F 9 , F 11 , F 12 , F 22 , F 91
Nickel & Copper Alloy
Nickel & Copper Alloy flangesRange :
15 NB UP TO 600 NB IN 150 LBS , 300 LBS, 400 LBS , 600 LBS , 900 LBS , 1500 LBS , 2500 LBS / TABLE 2.5 , TABLE 6 , TABLE 10, TABLE 16,TABLE 25 , TABLE 40, TABLE 64, TABLE 160, TABLE 320, TABLE 400
Form :
Slip On , Socket Weld , Blind , Lapped , Screwed , Weld Neck , Reducing , Spectacle ,Slip On Boss , Plate , Plate Blank , Screwed Boss
Nickel Alloy :
ASTM / ASME SB 564 UNS 2200 ( NICKEL 200 ) , UNS 4400 (MONEL 400 ) , , UNS 8825 INCONEL (825) , UNS 6600 (INCONEL 600 ) , UNS 6601 ( INCONEL 601 ) , UNS 6625 (INCONEL 625) ,UNS 10276 ( HASTELLOY C 276)
ASTM / ASME SB 160 UNS 2201 (NICKEL 201 )
ASTM / ASME SB 472 UNS 8020 ( ALLOY 20 / 20 CB 3 )
Copper Alloy :
ASTM / ASME SB 61 UNS NO. C 92200 & ASTM / ASME SB 62 UNS NO. C 83600.
ASTM / ASME SB 151 UNS NO. 70600 , 71500 , C 70600 ( CU -NI- 90/10) , C 71500 ( CU -NI- 70/30)
ASTM / ASME SB 152 UNS NO C 10100 , C 10200 , C 10300 , C 10800 , C 12000, C 12200
Hastelloy
Hastelloy flangesGrades :Hastelloy C-22, Hastelloy C-276, Hastelloy C-2000
Size :1/2"NB to 12"NB
Standard :ASTM, ASME, API, AISI, BS, ANSI, DIN, JIS, MSSP, NACE
Types :Socket Weld, Slip On, Blind, Lapped, Screwed, Weld Neck, Long Weld Neck, Reducing, Spectacle, Ring Joint
Features:
Durability
Corrosion resistance
Dimensional accuracy
High strength
Excellent finish
Inconel
Inconel flangesGrades : 
Inconel 600, Inconel 601, Inconel 625, Inconel 625LCF, Inconel 686, Inconel 718, Inconel 800, Inconel 825, Inconel X-750
Size : 1/2 inch - 48 inch (15mm - 1200mm)
Standard :ANSI/ASME B16.5, ANSI B16.47 API, DIN, JIS, BS
Types :Socket Weld, Slip On, Blind, Lapped, Screwed, Weld Neck, Long Weld Neck, Reducing, Spectacle, Ring Joint
Features :
Durability
Corrosion resistance
Dimensional accuracy
High strength
Excellent finish
Incoloy
Incoloy flangesGrades :Incoloy 800, incoloy 825, Incoloy 925, Incoloy a-286, Incoloy DS
Flanges Grade :ASTM A 182 F 304/L; 316/L; 317/L; 309; 310; 321; 347; 904L.
Type :SORF, BLRF, WNRF, SOLJ
Class :50 To 3000
Flanges Range :DN15 Upto DN1800 IN 150 LBS, 300 LBS, 400 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS / TABLE 2.5, TABLE 6, TABLE 10, TABLE 16, TABLE 25, TABLE 40, TABLE 64, TABLE 160, TABLE 320, TABLE 400
Types :Socket Weld, Slip On, Blind, Lapped, Screwed, Weld Neck, Long Weld Neck, Reducing, Spectacle, Ring Joint
Features:
Durability
Corrosion resistance
Dimensional accuracy
High strength
Excellent finish
Monel
Monel flangesGrades :Monel 400, Monel k500
Range :1/2" NB to 60" NB
Types :Socket Weld, Slip On, Blind, Lapped, Screwed, Weld Neck, Long Weld Neck, Reducing, Spectacle, Ring Joint
Features:
Durability
Corrosion resistance
Dimensional accuracy
High strength
Chemical resistance
Excellent finish
Titanium
Titanium flangesSpecifications
1. Material:Titanium.
2. Grade:Gr2, Gr5, Gr7, Gr9.
3. Standards:DIN,ASTM,BS.
4.Application:Bicycles,Motors,Chemicals.
Description
Standards:DIN,ASTM,BS.
Strength :Superior Quality, Fast delivery, Competitive price as well as humanized after-sales service.
Features :Low density, rustless, good antiwear property, high strength.
Size:Set the size according to the customers' requirements.

 

Threaded Flange Dimensions

The tables below show the most common sizes but are not exhaustive.

150 Lbs

Drilling
Nominal Bore Dia.(D) Thick.(E) Dia.(F) Dia.(B) Height1(H) Nbr Holes Dia.(C)
1/2″ 90 9.6 35.05 30 14 4 15.87 60.3
3/4″ 100 11.2 42.92 38 14 4 15.87 69.9
1″ 110 12.7 50.80 49 16 4 15.87 79.4
1 1/4″ 115 14.3 63.50 59 19 4 15.87 88.9
1 1/2″ 125 15.9 73.15 65 21 4 15.87 98.4
2″ 150 17.5 91.94 78 24 4 19.05 120.7
2 1/2″ 180 20.7 104.65 90 27 4 19.05 139.7
3″ 190 22.3 127.00 108 29 4 19.05 152.4
3 1/2″ 215 22.3 139.70 122 30 8 19.05 177.8
4″ 230 22.3 157.22 135 32 8 19.05 190.5
5″ 255 22.3 185.67 164 35 8 22.22 215.9
6″ 280 23.9 215.90 192 38 8 22.22 241.3
8″ 345 27.0 269.75 246 43 8 22.22 298.5
10″ 405 28.6 323.85 305 48 12 25.40 362.0
12″ 485 30.2 381.00 365 54 12 25.40 431.8
14″ 535 33.4 412.75 400 56 12 28.57 476.3
16″ 595 35.0 469.90 457 62 16 28.57 539.8
18″ 635 38.1 533.40 505 67 16 31.75 577.9
20″ 700 41.3 584.20 559 71 20 31.75 635.0
24″ 815 46.1 692.15 663 81 20 34.92 749.3