Stainless Steel 304 Flanges

SS 304 Forged Flange and ASTM A182 F304 Flanges suppliers in UAE

Stainless Steel 304 Flanges

What are Stainless Steel 304 Flanges?

Flanges made of 304 grade austenitic stainless steel has 18% chromium and 8% nickel in its chemical composition. This is what makes the Stainless Steel 304 Flanges strong and resistant to general corrosive services. The ASTM A182 Grade F304 flanges are available in different sizes and surface finishes, which can be customised according to the client’s requirements.
There are different types of ASTM A182 F304 Flanges and they have different usages:

  • The SS 304 Blind Flange helps to block off the end of a pipeline.
  • The A182 Gr F304 Lap Joint Flange is used in a piping system that requires frequent dismantling for inspection and maintenance. The SA 182 304 Lapped joint Flange is also used in the erection of hard-to-adjust and large diameter configurations.
  • The SA182 F304 Socket Weld Flange is found in small sized pipes with high pressure.
  • The SA 182 Gr F304 Reducing Flange helps to connect two pipes of different sizes.
  • The A182 F304 Slip On Flange is used low pressure applications that have a very little risk of leakage.
  • The SA 182 F304 Weld Neck Flange can be used in severe and critical applications.
  • The SS 304 Flanges are used as a fitting, which helps in forming a piping network with valves, pumps, and various other piping equipment.
  • The ASTM A182 304 Plate Flange is mainly used in fuel and water pipelines.
  • The 304 SS WNRF Flange is preferred for high stress applications.
  • The DIN 1.4301 RTJ Flange is used in high temperature and high pressure piping applications. The Inox 304 Ring Type Joint Flange is found in oilfield assembly, high integrity pressure vessel joints, etc.
  • The AISI 304 Screwed Flange comes with a screw thread which helps to connect the flange to the piping system.
  • The SUS 304 Spectacle Blind Flange is installed to ensure uninterrupted flow inside the pipeline.
  • The UNS S30400 SORF Flange can be used in both medium and low pressure pipelines.

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Forging process of SS 304 Flanges

The F304 stainless steel Forged Flange is manufactured by heating the steel billet and then compressing the material with a steel hammer to give the flange the desired shape from its solid state.

What is difference between 304 Threaded Flange annealing and normalizing?

Annealing allows the 304 Threaded Flange material to cool down at a controlled rate inside a furnace. Whereas, normalizing allows the material to cool down at the room temperature.

ASTM A182 F304 Flanges Specification

Specifications

Specifications :
Stainless Steel 304 Flanges

Face Type

Face Type :
RF, FF, RTJ

Use In

Use In :
Oil and Gas, Petrochemical

 

Sizes

Sizes :
1/2” to 24”

Certificate

Certificate :
ISO, (SABIC) & KNPC

Equipment

Equipment :
Pushing or Press Machine

 

What do DN and PN mean on 304 Stainless Steel Flanges?

DN denotes the nominal diameter and PN is the nominal pressure on 304 Stainless Steel Flanges .

 

Buy SA 182 304 Lapped joint Flange and A182 F304 Slip On Flange in Class 150 to 2500, check Inox 304 Ring Type Joint Flange price per kg in Dubai

Comparison SS 304 Flange Price In India and USA

Description Price In India (INR) Per KG Price In USA ($) Per KG
SIZE: 300#, 2 Inch, 40S BORE, SWRF ₹4378.72 US $54.79
SIZE: 300#, 3 Inch, 40S BORE, WNRF ₹8928.46 US $111.72
SIZE: 150#, 4 Inch, 10S BORE, WNRF ₹15926.10 US $199.28
SIZE: 300#, 1 3/4 Inch, 40S BORE, SWRF ₹4442.65 US $55.59
SIZE: 300#, 3 Inch, 20S BORE, SWRF ₹10926.42 US $136.72
SIZE: 150#, 2 Inch, 10S BORE, BLRF ₹14784.07 US $184.99
SIZE: 150#, 3 Inch, 20S BORE, BLRF ₹18779.98 US $234.99
SIZE: 300#, 4 Inch, 40S BORE, BLRF ₹23974.67 US $299.99
SIZE: 300#, 6 Inch, 40S BORE, BLRF ₹27970.58 US $349.99

 

SS 304 Blind Flange and 304 Stainless Steel Threaded Flange as per ASME B16.5, API, B16.47, ISO 7005 etc

Various Types of ASTM A182 F304 Stainless Steel Flanges Used in Piping Applications

AISI 304 Large Diameter Weld Neck Flange

AISI 304 Large Diameter Weld Neck Flange

Class 150 Stainless Steel 304 Slip On Flange

Class 150 Stainless Steel 304 Slip On Flange

ASTM A182 F304 Blind Flange

ASTM A182 F304 Blind Flange

304 SS Socket Weld Flange

304 SS Socket Weld Flange

SUS 304 Lap Joint Flange

SUS 304 Lap Joint Flange

304 Stainless Steel Plate Flange

304 Stainless Steel Plate Flange

SS 304 Threaded Flange

SS 304 Threaded Flange

A182 F304 Orifice Flange

A182 F304 Orifice Flange

WNR 1.4301 Spectacle Blind Flange

WNR 1.4301 Spectacle Blind Flange

304 SS RTJ Flanges

304 SS RTJ Flanges

SA 182 Gr F304 Raised Face Flanges

SA 182 Gr F304 Raised Face Flanges

Inox 304 Reducing Flanges

Inox 304 Reducing Flanges

Stainless Steel 304 Square Flanges

Stainless Steel 304 Square Flanges

304 Stainless Steel Flat Flanges

304 Stainless Steel Flat Flanges

UNS S30400 Anchor Flanges

UNS S30400 Anchor Flanges

F304 Stainless Steel Forged Flange

F304 Stainless Steel Forged Flange

304 SS WNRF Flange

304 SS WNRF Flange

AISI 304 Screwed Flange

AISI 304 Screwed Flange

UNS S30400 SORF Flange

UNS S30400 SORF Flange

304 Stainless Steel BLRF Flange

304 Stainless Steel BLRF Flange

EN 1.4301 Industrial Flange

EN 1.4301 Industrial Flange

 

SA182 F304 Socket Weld Flange and F304 stainless steel Forged Flange for high temperature applications in Middle East

304 SS Flanges Equivalent

Grade Stainless Steel 304 Flanges
UNS S30400
AFNOR Z7CN18‐09
BS 304S31
WERKSTOFF No. 1.4301
EN SUS 304
DIN 1.4301
JIS SUS 304

 

Find reputable SS 304 Flanges suppliers in UAE who can supply A182 Gr F304 Lap Joint Flange and SA 182 F304 Weld Neck Flange as per your

A182 F304 Chemical Composition

A182 F304 Chemical Composition

 

How To Order A Stainless Steel 304 Flanges

The following details shall be communicated to the manufacturer when ordering stainless steel 304 flanges:

  • Type (Weld Neck, Slip On, Blind, Socket Weld, Threaded, Lap Joint, Plate Flange)
  • Specification (example ANSI/ASME B16.5, ASME B16.47 Series A & B, EN 1092-1, JIS, DIN, API, UNI etc.)
  • NPS (Nominal pipe size)
  • Pressure rating: flanges’ rating can range from class 150 to class 2500
  • Pipe schedule : (for socket weld and welding neck flanges)
  • Facing Type : according to ASME B16.5 standard, flanges have different facings, like RTJ, FF, RF
  • Surface Finish : (smooth, stock, concentric serrated etc)
  • Material Grade : (304, 304L, 316, 316L, 321, 310, 347, 904L)

 

Benefits and Advantages of 304 SS Slip On Flange

  • Corrosion Resistant
  • Versatility and Strength
  • Appearance
  • Environment-friendly
  • Easy Access
  • Fabrication time is short
  • Modifications are simple
  • No welding, No drilling
Benefits and Advantages of 304 SS Slip On Flange

 

SS 304 Flange Dimensions and Weight Chart

NPS In MM O.D. Minimum Thickness Diameter of R/F Bolt Holes Number Bore Inner Daimeter Of Slip On Inner Daimeter Of Weld Neck Bore Hub Top Diameter
12.7 3.50 0.38 1.38 4 0.88 0.62 0.84
19.05 3.88 0.44 1.69 4 1.09 0.82 1.05
25.4 4.25 0.50 2.00 4 1.36 1.05 1.32
31.75 4.62 0.56 2.50 4 1.70 1.38 1.66
38.1 5.00 0.62 2.88 4 1.95 1.61 1.90
50.8 6.00 0.69 3.62 4 2.44 2.07 2.38
63.5 7.00 0.81 4.12 4 2.94 2.47 2.88
76.2 7.50 0.88 5.00 4 3.57 3.07 3.50
88.9 8.50 0.88 5.50 8 4.07 3.55 4.00
101.6 9.00 0.88 6.19 8 4.57 4.03 4.50
127 10.00 0.88 7.31 8 5.66 5.05 5.56
152.4 11.00 0.94 8.50 8 6.72 6.07 6.63
203.2 13.50 1.06 10.62 8 8.72 7.98 8.63
254 16.00 1.12 12.75 12 10.88 10.02 10.75
304.8 19.00 1.19 15.00 12 12.88 12.00 12.75
355.6 21.00 1.31 16.25 12 14.14 13.25 14.00
406.4 23.50 1.38 18.50 16 16.16 15.25 16.00
457.2 25.00 1.50 21.00 16 18.18 17.25 18.00
508 27.50 1.62 23.00 20 20.20 19.25 20.00
558.8 29.50 1.75 25.25 20 22.22 21.25 22.00
609.6 32.00 1.81 27.25 20 24.25 23.25 24.00

 

Weight Chart

Normal Pipe Size
(MM)
O.D. THICKNESS SORF & SWRF

Weight In pounds

12.7 95.3 14.2 1.32277
19.05 117.3 15.7 2.42508
1 124 17.5 3.08647
31.75 133.4 19.1 3.74786
38.1 155.5 20.6 5.51156
50.8 165.1 22.4 6.39341
63.5 190.5 25.4 9.47988
76.2 215.9 28.4 13.0073
88.9 228.6 30.2 16.0937
101.6 254 31.8 21.1644
127 279.4 35.1 27.11686
152.4 317.5 36.6 34.39211
203.2 381 41.1 53.35187
254 444.5 47.6 75.17763
304.8 520.7 50.8 109.7902
355.6 584.2 53.8 154.1031
406.4 647.7 57.2 194.2273
457.2 711.2 60.5 240.304
508 774.7 63.5 295.419
609.6 914.4 70.0 443.129

 

DIN 1.4301 Flanges Mechanical Properties

Proof Stress (MPa) 230 Min
Tensile Strength (MPa) 540 – 750
Elongation A50 mm 45 Min %

 

Design Shapes Of SA182 F304 Weld Neck Flange

Physical specifications for SS 304 pipe flanges include design shapes and dimensions

Design Shapes Of SA182 F304 Weld Neck Flange
  • OD (Outside diameter) : is the space between two opposing edges of a flange’s face
  • Nominal bore size : is the inner diameter (ID) of the steel flanges connector
  • Thickness : thickness refers of the attaching outer rim
  • Bolt circle diameter : is the length from the center of a bolt hole
  • Pipe size : is a forged flange’s corresponding pipe size

 

International Standard for UNS S30400 Blind Flanges

International Standard for UNS S30400 Blind Flanges

 

304 Stainless Steel Flange Pressure Rating

Working pressure by (Class), BAR

Temperature Celsius Class 150 Class 300 Class 600
37.7778 275 720 1440
93.3333 230 600 1200
148.889 205 540 1080
204.444 190 495 995
260 170 465 930
315.556 140 435 875
343.333 125 430 860
371.111 110 425 850
398.889 95 415 830
426.667 80 405 805
454.444 65 395 790
482.222 50 390 780
510 35 380 765
537.778 20 320 640
565.5556 20 310 615
593.3333 20 255 515
621.1111 20 200 400
648.8889 20 155 310
676.6667 20 115 225
704.4444 20 85 170
732.2222 20 60 125
760 20 50 95
787.7778 15 35 70
815.5556 10 25 55