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Key factors that buyers should consider when purchasing stainless steel 304L flanges?

Purchasing a SS 304L flange needs some careful evaluations so that your system can give optimal performance. Some factors that stainless steel 304L flanges manufacturers in India recommend that the buyers consider will include:

  • The type of UNS S30403 flange along with its size & dimensions.
  • Identify the maximum operating pressure & temperature of your application and choose the DIN 1.4307 orifice flanges accordingly.
  • Ensure that the 304L flanges are made from genuine raw material and offer corrosion resistance in specific environments.

ASME B16.5 ASTM A182 F304L Blind Flange and AISI 304L WNRF Flange manufacturer in India


Stainless Steel 304L Flanges

Premier manufacturer and supplier of ASME B16.47 Series B Class 150 Stainless Steel 304L Slip On Flange and SA182 F304L Weld Neck Flange


What is the role of temperature in the performance of SS 304L flanges?

  • The SS 304L flanges can maintain their mechanical properties within the temperature range of cryogenic to 538 °C.
  • They offer excellent resistance to corrosion across a wide temperature range.
  • The UNS S30403 lap joint flange offers high temperature creep resistance.
  • It can withstand high and low cyclic temperatures.

SS 304L Blind Flanges

SS 304L Blind Flanges

  • Flange Dimensions :
  • OD/ thickness/ pipe size
  • Bolt circle diameter
  • Nominal bore size
SS 304L Slip On Flanges

SS 304L Slip On Flanges

  • Flange Bolts :
  • High strength bolts
  • Medium strength bolts
  • Low strength bolts
SS 304L Weld Neck Flanges

SS 304L Weld Neck Flanges

  • Facing Finish :
  • Stock finish
  • Spiral serrated
  • Smooth finish
SS 304L Socket Weld Flange

SS 304L Socket Weld Flange

  • Suitable Gasket :
  • SOFT gaskets
  • Hard gaskets
  • Composite gaskets
SS 304L Plate Flange

SS 304L Plate Flange

  • Testing methods :
  • Proof test
  • Tensile test
  • Impact test
SS 304L Lap Joint Flange

SS 304L Lap Joint Flange

  • Heat treatment :
  • Normalizing & quenching
  • Stress relieving
  • Solution Annealing

What are the different sizes and face types of ASTM A182 F304L blind flange available in the market?

The Stainless steel 304L spectacle blind flange is available within the standard size range of ½” to 24”. Larger size can also be products according to the specific requirements of the application.

The common face type available for ASTM A182 F304L blind flange are raised face, flat face and ring type joint.


SS 304L Threaded Flange

SS 304L Threaded Flange

  • Testing methods :
  • Magnetic particle test
  • Liquid penetrant test
  • Hardness test
 304L Orifice Flange

304L Orifice Flange

  • Documentation :
  • Raw material test reports
  • Guarantee letter
  • Heat treatment chart
304L Spectacle Blind Flange

304L Spectacle Blind Flange

  • Application :
  • Pharmaceuticals
  • Power generation
Stainless Steel 304L Flanges



ASTM A182 F304L Specification

ASTM A182 F304L Specification

What are the best practices for testing and inspecting stainless steel 304l slip on flange?

The best practices for testing and inspecting stainless steel 304l slip on flange are visual & dimensional inspections, NDT, pressure test and others, as per specific application requirements. These tests ensure that the flanges are free from defects, damage, leakages and capable of giving optimal performance.


Specification Stainless Steel 304L Flanges
Chemical Composition Sulfur (≤0.030), Silicon (≤0.75), Manganese (≤2.00), Phosphorus (≤0.045), Carbon (≤0.03)
Face Type RTJ/ FF/ RF/ lap joint/ Male & Female / Tongue & Groove.
Schedule SCH 5S, SCH 10, SCH 40, SCH 80, SCH 120, SCH 160, SCH 180 To XXS
Dimensions And Standard EN 1092-1/ EN 1092-2/ API/ ISO/ JIS/ GOST/ PN
Manufacturer Pressure Class Class 150 (lb) up to 24"
Class 300 (lb) up to 20"
Class 600 (lb) up to 20"
Class 900 (lb) up to 16"
Class 1500 (lb) up to 10"
Class 2500 (lb) up to 8"
DIN Standard PN6/ PN10/ PN16/ PN25/ PN40/ PN64
JIS Standard 5K/ 10K/ 16K 20K/ 30K/ 40K/ 63K
Application Bitumen upgraders
Heavy oil refineries.
Nuclear power (mostly seamless).
Petrochemicals and acids.
Production Technique Forged/ Heat treated and machined
Manufacturer of Forged/ Threaded/ Screwed / Plate
Other Standard B16.47 Series A & B/ B16.48, BS4504/ GOST
UNI Standard 6 Bar/ 10 Bar/ 16 Bar/ 25 Bar/ 40 Bar
Most common types SS 304L Blind Flange
SS 304L Forged Flange
SS 304L Threaded Flange
SS 304L Plate Flange
304L Orifice Flange
304L Spectacle Blind Flange
SS 304L Lap Joint Flange
SS 304L Reducing Flanges
SS 304L Weld Neck Flanges
SS 304L Slip On Flanges
304L Welding Neck Flange
304L Flange Asme B16.5
SS 304L Socket Weld Flanges
EN Standard 6Bar/ 10Bar/ 16Bar/ 25Bar/ 40Bar
  • Price stability can be seen in SS 304L Flanges Manufacturer In India
  • ASTM A182 F304L Flanges Material have high corrosion resistance, particularly to stress corrosion cracking
  • Very little or no maintenance material
  • 304L Stainless Steel Flanges are suitable for harsh conditions.
  • Buy from Stainless Steel 304L Flanges manufacturers in India for factory price
  • A largest Manufacturer, Distributor, Importer, Exporter, Source, Stock, Stockholder, Wholesaler, Distributor, Suppliers, Dealer, Traders, Fabricator & Stockist in Asia & Middle East.

ASTM A182 F304L Flanges Price List

Type Of Flange Size In Inch SCH Class Grade Price In INR (India) Per Piece
Stainless Steel Slip On Flange 2 40 150 ASTM A182 F304L 187.00
- 3 40 150 - 347.00
- 8 80 300 - 1200.00
Slip On 10 80 300 - 1673.00
Stainless Steel Blind Flange 3/4 40 150 - 120.00
1 40 150 - 143.00
- 1-1/2 40 150 - 234.00
- 2 40 150 - 379.00
- 3 40 150 - 535.00
4 40 150 - 852.00
Blind 6 40 150 - 1256.00
Stainless Steel Weld Neck Flange 3/4 STD 150 - 179.00
2 4 STD 300 - 267.00
3 4 STD 300 - 468.00
- 4 STD 300 - 690.00
- 6 80 300 - 987.00
Weld Neck 8 80 300 ASTM A182 F304L 1462.00

Types Of Stainless Steel 304L Flanges

SS 304L Reducing Flanges

SS 304L Reducing Flanges

 304L Welding Neck Flanges

304L Welding Neck Flanges

Werkstoff No 1.4307 Square Flanges

Werkstoff No 1.4307 Square Flanges

UNS S30403 Flat Face Flanges

UNS S30403 Flat Face Flanges

 304L Stainless Steel Anchor Flanges

304L Stainless Steel Anchor Flanges

SA182 F304L Large Diameter Flanges

SA182 F304L Large Diameter Flanges

DIN 1.4307 High Hub Blind Flanges

DIN 1.4307 High Hub Blind Flanges

 Class 150 Stainless Steel 304L Flanges

Class 150 Stainless Steel 304L Flanges

304L Flange ASME B16.5

304L Flange ASME B16.5

ASTM A182 F304L Flanges

ASTM A182 F304L Flanges

 304L Stainless Steel Flanges

304L Stainless Steel Flanges

SS 304L Flanges

SS 304L Flanges

1.4307 Stainless Steel RTJ Flanges

1.4307 Stainless Steel RTJ Flanges

 AISI 304L Pipe Flanges

AISI 304L Pipe Flanges

WNR 1.4307 Flanges

WNR 1.4307 Flanges


304L Stainless Steel Flange Pressure Ratings

ASME/ ANSI B16.5Pressure Rating
Temperature °FClass 150Class 300Class 400Class 600Class 900Class 1500Class 2500
-20 to 1002757209601440216036006000
2002306008001200180030005000
3002055407201080162027004500
400190495660995149024854140
500170465620930139523303880
600140435580875131021853640
650125430575860129021503580
700110425565850127521253540
75095415555830124520753460
80080405540805121020153360
85065395530790119019803300
90050390520780116519453240
95035380510765114519103180
10002032043064096516052675
10502031041061592515452570
11002025534551577012852145
1150202002654005959951655
1200201552053104657701285
125020115150225340565945
13002085115170255430715
1350206080125185310515
140020506595145240400
145015354570105170285
15001025355580135230

ASTM A182 F304L Equivalent

Grade Name Stainless Steel 304L Flanges
WERKSTOFF No. 1.4306 / 1.4307
GOST 03Х18Н11
UNS S30403
DIN 1.4306 / 1.4307
JIS SUS 304L
AFNOR Z3CN18‐10
BS 3304S11
EN X2CrNi18-9 And X2CrNi19-11

ASTM A182 F304L Chemical Composition

Chemical Element Of Stainless Steel 304L Flanges
Silicon ≤0.75
Chromium 18.00-20.00
Nickel 8.00-12.0
Phosphorus ≤0.045
Sulfur ≤0.030
Iron Balance
Nitrogen ≤0.10
Carbon ≤0.03
Manganese ≤2.00

SS 304L Flanges Forging/ Rolled Ring/ Heat Treatment

SS 304L Flanges Forging/ Rolled Ring/ Heat Treatment
SS 304L Flanges Forging/ Rolled Ring/ Heat Treatment
SS 304L Flanges Forging/ Rolled Ring/ Heat Treatment

A182 F304L Mechanical Properties

Grade Name Tensile Strength ksi(Mpa), (minimum) Yield Strength, ksi(Mpa) Elongation, % Hardness, Rockwell
Stainless Steel 304L Flanges 90(621) 42(290) 55 B82

SS 304L Forged Flange Dimensions

SS 304L Weld Neck Flange

SS 304L Forged Flange Dimensions

Dimensions of Class 150 To 2500

CLassCLass 150CLass 300CLass 600CLass 900CLass 1500CLass 2500
Diameter
A
303838383843
Diameter
D
909595120120135
Thickness
B
9.612.714.322.322.330.2
11.214.320.728.728.736.6
Diameter
G
35.135.135.135.135.135.1
Diameter
K
60.366.766.782.682.688.9
Hight465152606073
47.652.658.466.466.479.4
Number
L
444444
Diameter
L
15.915.915.922.222.222.2

SS 304L Blind Flange Dimensions

SS 304L Blind Flange Dimensions

Dimensions of Class 150 To 2500

CLassCLass 150CLass 300CLass 600CLass 900CLass 1500CLass 2500
Diameter
D
909595120120135
B9.612.714.322.322.330.2
11.214.320.728.728.736.6
Diameter
G
35.135.135.135.135.135.1
Diameter
K
60.366.766.782.682.688.9
Number
L
444444
Diameter
L
15.915.915.922.222.222.2

Highly reliable manufacturer of Class 150/ 300/ 600 304L Stainless Steel Socket Weld Flange and SS DIN 1.4307 Orifice Flanges material in India


Stainless Steel 304L Flanges Production Process

  • Raw Material
  • Material Inspection
  • Cuttings
  • Heating
  • Forging
  • Heat Treatment
  • Machining
  • Physical Inspection
  • Marking
  • Cleaning
  • Panting
  • Final Inspection
  • Packing

SA 182 Gr F304L Plate Flange Thermal Expansion

Mean Coefficient of Thermal Expansion (m/m/0C)
0-1000C 0-3150C 0-5380C
17.2 17.8 18.4

304L Flange ASME b16.5 Testing

304L Flange ASME b16.5 Testing
  • size
  • item
  • specification and number
  • pressure rating, with unit
  • OD
  • WT, with unit
  • bore when applicable
  • std schedule when applicable,
  • material specification
  • 2"
  • FLANGE
  • SORF
  • ASME B16.5 150#
  • 6" OD x 0.250"
  • 152.4 Unit
  • Bore 15.500"
  • SCH 20S
  • ASTM A182 F304L

WNR 1.4307 Flanges Bolts Chart

Size in Inch BoltNumber Size Of ISO Stud Length Of Machine Bolt
1/2 4 M14 50
3/4 4 M14 50
1 4 M14 55
1 1/4 4 M14 55
1 1/2 4 M14 65
2 4 M16 70
2 1/2 4 M16 75
3 4 M16 75
3 1/2 8 M16 75
4 8 M16 75
5 8 M20 85
6 8 M20 85
8 8 M20 90
10 12 M24 100
12 12 M24 100
14 12 M27 115
16 16 M27 115
18 16 M30 125
20 20 M30 140
24 20 M33 150

Stainless Steel 304L Flanges Heat Treatment

Name Of Grade Types Of Heat Treatment Austenitizing & Solutioning Cooling Quenching Tempering
Types Of Treat temperature (Temp.), minimum. (°F) Media Cool Temp.
Stainless Steel 304L Flanges Solution 1900 [1040] Liquid 500 [260]
treat and

Bore Diameter Of SA182 F304L Flanges

Loose (Lap Joint) And SORF (Slip On) Flanges Bores

Size Tolerance
Normal Size Of Pipe ≤ 10 +1.0, -0.0 mm (+0.03,-0.0 in.)
Normal Size Of Pipe ≥ 12 +1.5, -0.0 mm (+0.06,-0.0 in.)

Counter Bores, NPT (Threaded) Flanges

Size Chart Tolerance Of
Normal Size Of Pipe ≤ 10 +1.0, -0.0 mm (+0.03,-0.0 in.)
Normal Size Of Pipe ≥ 12 +1.5, -0.0 mm (+0.06,-0.0 in.)

Grade F304L Threaded Flange Specific Heat

Specific Heat kJ/kg*K 0.50

SUS 304L RTJ Flanges Tensile Strength

Tensile Strength ksi(Mpa), (minimum) 90 (621)

Stainless Steel 304L Socket Weld Flange Melting Range

Melting Range (°F) 2550-2650

SS 304L Slip On Flange Dimensions

SS 304L Slip On Flange Dimensions


Dimensions of Class 150, 300, 600, 900, 1500, 2500

CLass 150 300 600 900 1500 2500
Diameter
A
30 38 38 38 38 ...
Diameter
D
90 95 95 120 120 ...
THK
B
9.6 12.7 14.3 22.3 22.3 ...
11.2 14.3 20.7 28.7 28.7 ...
Diameter
G
35.1 35.1 35.1 35.1 35.1 ...
Diameter
K
60.3 66.7 66.7 82.6 82.6 ...
Height 14 21 22 32 32 ...
15.6 22.6 28.4 38.4 38.4 ...
Number
L
4 4 4 4 4 ...
Diameter
L
15.9 15.9 15.9 22.2 22.2 ...

Face Types Of F304L SS Flanges

Face Types Of F304L SS Flanges

SS 304L Pipe Flanges Weight Chart

Nominal Size Of Pipe  (NPS) In Inch Slip On (SORF) Socket Weld (SWRF) Blind (BLRF) Weld Neck (WNRF)
½  1 2 2 2
¾ 2 2 2 2
1 2 2 2 3
3 3 3 3
1½  3 3 4 4
5 5 5 6
2½  8 8 7 10
3 9 9 9 11.5
3½  11 11 13 12
4 13 13 17 16.5
5 15 15 20 21
6 19 19 27 26
8 30 30 47 42
10 43 43 70 54
12 64 64 123 88
14 90 90 140 114
16 106 98 180 140
18 130 130 220 165
20 165 165 285 197
22 185 185 355 225
24 220 220 430 268

SS 304L Threaded Flange Installation


SS 304L Threaded Flange Installation

SS 304L Socket Weld Flange Dimensions

SS 304L Socket Weld Flange Dimensions

NPS Of SWRF Outer Diameter Diameter of RF Minimum Thickness Hub Diameter Bore Diameter Socket Depth Bolt Circle Diameter Bolt Holes Diameter Flanges Bolt Number
(NPS) (O) (R) (tf) (X) (B1) (B2) (D) (W) (I)
1/2 90 34.9 9.6 30 22.2 15.8 10 60.3 15.9
3/4 100 42.9 11.2 38 27.7 20.9 11 69.9 15.9
1 110 50.8 12.7 49 34.5 26.6 13 79.4 15.9
1 1/4 115 63.5 14.3 59 43.2 35.1 14 88.9 15.9
1 1/2 125 73.0 15.9 65 49.5 40.9 16 98.4 15.9
2 150 92.1 17.5 78 61.9 52.5 17 120.7 19.1
2 1/2 180 104.8 20.7 90 74.6 62.7 19 139.7 19.1
3 190 127.0 22.3 108 90.7 77.9 21 152.4 19.1

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VS is biggest steel factory in mumbai, India
VS is biggest steel factory in mumbai, India

304L Spectacle Blind Flanges Dimensions

304L Spectacle Blind Flanges Dimensions

Size in MM Inner Diameter Outer Diameter Center to Center Wall Thickness Width Of Web Thickness Of Web Hole Diameter
15 16 45 60 3 38 2 15.875
20 21 54 70 3 38 2 15.875
25 27 64 80 3 38 2 15.875
32 42 73 90 6.4 38 4 15.875
40 48 83 100 6.4 38 4 15.875
50 61 102 120 6.4 51 4 19.05
65 73 107 140 6.4 51 4 19.05
80 89 133 150 6.4 64 4 19.05
90 102 159 175 9.7 64 5 19.05
100 114 172 190 9.7 64 5 19.05
130 141 194 215 9.7 76 5 22.225
150 168 219 240 12.7 76 7 22.225
200 219 276 300 12.7 76 10 22.225
250 273 337 360 15.7 102 12 25.4
300 324 406 430 19.1 102 15 25.4
350 356 448 475 19.1 108 15 28.575
400 406 511 540 22.4 108 17 28.575
450 457 546 580 25.4 114 20 31.75
500 508 603 635 28.4 121 22 31.75
600 610 714 750 31.8 140 24 34.925

SS 304L Lap Joint Flange Welding

SS 304L Lap Joint Flange Welding
We supply and EN 1092-2 PN10 UNS S30403 Lap Joint Flange and MSS SP-44 Series A AISI 304L Spectacle Blind Flange with Hydrostatic (Hydro) Testing

Stainless 304L Flanges Standard

Stainless 304L Flanges Standard
  • MSS SP-44
  • EN 1092-2 PN16
  • DIN
  • BS 4504
  • ASME B16.5
  • ANSI B16.5
  • EN 1092-1
  • AWWA C207
  • JIS
  • ISO

EN 1.4307 Stainless Steel Flange Thickness

NPS Outer Diameter (O.D.) 10 Schedule 40 Schedule 80 Schedule 160 Schedule
½ 0.84 0.083 0.109 0.147 0.188
¾ 1.05 0.083 0.113 0.154 0.219
1 1.315 0.109 0.133 0.179 0.25
1 ¼ 1.66 0.109 0.14 0.191 0.25
1 ½ 1.9 0.109 0.145 0.2 0.281
2 2.375 0.109 0.154 0.218 0.344
2 ½ 2.875 0.12 0.203 0.276 0.375
3 3.5 0.12 0.216 0.3 0.438
3 ½ 4 0.12 0.226 0.318 -
4 4.5 0.12 0.237 0.337 0.531
5 5.563 0.134 0.258 0.375 0.625

15mm- 1500mm BS4504 PN16 1.4307 Stainless Steel Threaded Flange and EN 1092-1 Type 11 PN25 AISI 304L Stainless Steel Forged Flange supplier in Mumbai, Worldwide delivery

ASTM A182 Grade F304L Flanges Gasket

NPS In Inch (I.D.) Gasket
(O.D.) Outer Daimeter Gasket
Class 150
1/2 0.84 1.875
3/4 1.06 2.25
1 1.31 2.625
1 1/4 1.66 3
1 1/2 1.91 3.375
2 2.38 4.125
2 1/2 2.88 4.875
3 3.50 5.375
4 4.50 6.875
5 5.56 7.75
6 6.62 8.75
8 8.62 11
10 10.75 13.375
12 12.75 16.125

Stainless Steel 304L Flanges Application

  • Specialty Chemicals
  • Power Generation
  • Condensers
  • Chemical Equipment
  • Gas Processing
  • Pulp and Paper Industry
  • Sea Water Equipment
  • Pharmaceutical Equipment
  • Off-Shore Oil Drilling Companies
  • Petrochemicals
  • Heat Exchangers
  • Pharmaceuticals

How can I select the right schedule for my SA182 F304L weld neck flange application?

  • To select the right schedule for your SA182 F304L weld neck flange, you should determine the operating conditions first.
  • Refer to the piping codes & standards and determine the maximum operating pressure, that will help you find the right schedule.
  • Consider the temperature range of the operation and see if 304L material can withstand that.
  • Select the right flange size and go for a schedule that is way above the expected operating conditions.

What are some factors that can impact the corrosion resistance of 304L SS socket weld flange?

  • The nature of gas or fluid to which the 304L SS socket weld flange is exposed.
  • Exposure to extremely high temperature conditions, above 800 °C can cause sensitization and reduce the corrosion resistance properties.
  • Higher pressure than what the ASME SA182 F304L flange can withstand might cause stress corrosion cracking.
  • Exposure to aggressive chloride ions can cause chloride stress corrosion cracking.

ASTM 182 F304L Flanges Inspection And Testing

ASTM 182 F304L Flanges Inspection And Testing
ASTM 182 F304L Flanges Inspection And Testing
ASTM 182 F304L Flanges Inspection And Testing

SS 304L Flanges Packaging

SS 304L Flanges Packaging
SS 304L Flanges Packaging
SS 304L Flanges Packaging

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