Stainless Steel 304L Flanges

  • Home /
  • Stainless Steel 304L Flanges

AISI 304L Blind Flange and ASTM A182 F304L WNRF/ SORF Flange manufacturer in India

What is Stainless Steel 304L Flanges?
The Stainless Steel 304L material consists of several elements in its alloy like carbon, silicon, chromium, nickel. Sulfur, phosphorus, etc., which gives the material its unique properties. It has the same 18% chromium and 8% nickel like that of the SS 304 material, but it comes with a lower carbon content. The grades of these stainless steel mostly vary according to the change in the total amount of carbon content. There are different types of Stainless Steel 304L Flanges available and each of them have separate usage depending on their structure. The Stainless Steel 304L material belongs to the A182 specification, which is for forged and rolled alloy stainless steel flanges. The equipment made with the material is mostly used for high temperature applications.
Due to the presence of low carbon content in the material, it acquires less carbide precipitate during the welding process. Also, there would be less chances of intergranular and localized corrosion. These flanges are available with different pressure ratings, ranging between 150 to 2500, and the pressure number from PN6 through PN64. The Stainless Steel 304L Flanges come with high temperature tolerance, which makes them capable of operating at up to 870 degrees C. The flanges are available in different shapes, sizes, and can be custom-made according to the requirements specified by the clients. They also possess different specifications, standards, and dimensions. These SS 304L flanges are available in the size range of ½” to 48”, which is for their nominal bore size.
Due to the low carbon content in Stainless Steel 304L material, all conventional welding methods can be used on them. And because of this, forming joint connections with the Stainless Steel 304L Flanges becomes very easy and hence they are used across various industries, especially the petroleum industry. The presence of a healthy dose of chromium helps in improving the corrosion resistance properties of the flanges.

ASTM A182 F304L Slip on Flanges Vs 304L Stainless Steel Blind Flange?
The ASTM A182 F304L Slip on Flange is a common variety of forged flange which is low in carbon content compared to the 304 grade and easy to install. They should be slid inside the pipe before the welding process. Double welds are done on the inner and outer side to ensure a leak-proof connection. Also the 304L grade is less degradable compared to the 304 grade. They are used in low pressure pipelines or in those connections that have a very little risk of leakage.
The 304L Stainless Steel Blind Flange is a popular piping component of SS 304L grade material, which is known for its carbide precipitate eliminating capabilities. They look like a plate with bolts holes around it. They are particularly designed to stop the flow inside the pipe or seal a given nozzle of the valve. The Welding process is easier with 304L Stainless Steel Blind Flange as there is no need for annealing weld joints before using the completed metal form. It helps in saving time and energy. They promote easy access to the pipe in case any maintenance work is required inside the piping line.

UNS S30403 Weld Neck Flange Vs SA 182 F304l Threaded Flange
The UNS S30403 material is used for high-temperature applications and the weld neck type of flange is ideal for severe and critical conditions. The UNS S30403 Weld Neck Flange is thus capable of bearing high temperature, high pressure, wide fluctuation, etc., type of conditions. They are also used for fluids that are volatile and hazardous in nature.They are a circular fitting with protruding rims present around their circumference.
The SA 182 F304l Threaded Flange does not need welding on the joints for establishing connection with the piping system. Infact, they are used in those areas of a pipe where welding might not be possible. For example, highly explosive areas and potential risk zones might make a difficult area for welding and there threaded flanges might be used.

What is installation process of 304l Flange?
The installation of a 304L flange depends on the type of flange one is using. For example, there are flanges that need welded connections and for them various welding methods might be used for joining them with the piping system. Similarly, there are non-welding flanges like the threaded flanges, which are screwed together to make a piping connection. Thus individual SS 304L flanges have their specific installation procedure.

Stainless Steel 304L Flanges

Stainless Steel 304L Flanges

ASME B16.5 SA182 F304L Slip On Flange manufacturers in Mumbai offers widest range of Stainless Steel 304L Weld Neck Flange and EN 1.4307 Reducing Flanges in India

Table of Content


Size Chart 1/2″(15 NB) to 48″ (1200NB)
Pressure Rating Chart ANSI 150 LBS, 300 LBS, 2500 LBS, 900 LBS, 600 LBS, 1500 LBS
Origin Japan / West Europe / Indian / USA / Korean
JIS 16 K, 5K, 10 K, 20 K, 30 K, 40 K, 63 K
UNI / EN 16Bar 6Bar 40Bar 10Bar 25Bar
Coating Yellow Transparent, Anti-rust Paint, Oil Black Paint, Zinc Plated, Cold and Hot Dip Galvanized
Manufacturer of Connect Type/ Flange Face Type RF, FF, RTJ, LJF, Small Tongue, Large Tongue & Groove
DIN Pressure Calculation 25Bar 40Bar 16Bar 6Bar 10Bar / PN64 PN10 PN25 PN16 PN6 PN40
Common Types By Manufacturer Threaded / Screwed / Forged / Plate
Manufacturer of GOST, JIS, ANSI, DIN, UNI, SABS, NFE, BS, AS2129, AWWA, EN etc.
Production technique Used By Manufacturer Forged, Heat treated and machined
Standards Provided By Manufacturer BS4504, BS 10, ANSI/ASME B16.5, B16.47 Series A & B, API7S-43, API605, B16.48, ISO70051, MSS SP44, EN-1092, DIN, BS1560-3.1, ASME/ANSI B16.5/16.36/16.47A/16.47B, API7S-15, JISB2220, EN1092
Equipment Bending machine, Press machine, Pushing Machine, Sand-blasting machine, electric bevelling machine etc
Test Direct-reading Spectrograph, Magnetic particle detector, X-ray detector, Ultrasonic flaw detector, Hydrostatic testing machine

Well known Stainless Steel 304L Flanges stockholders, distributor, wholesalers, importer, stockists, supplier, dealers, exporters and Manufacturer in Mumbai

NPS (Nominal Pipe Size) Loose (Lap Joint) NPT (Threaded) SORF (Slip On) BLRF (Blind) SWRF (Socket Weld) WRNR (Weld Neck)
½ 1 1 1 2 2 2
1 2 2 2 2 2 3
1¼ 3 3 3 3 3 3
¾ 2 2 2 2 2 2
1½ 3 3 3 4 3 4
2½ 8 8 8 7 8 10
2 5 5 5 5 5 6
3 9 9 9 9 9 11.5
4 13 13 13 17 13 16.5
3½ 11 12 11 13 11 12
5 15 15 15 20 15 21
8 30 30 30 47 30 42
6 19 19 19 27 19 26
10 43 43 43 70 43 54
24 275 220 220 430 220 268
14 105 90 90 140 90 114
12 64 64 64 123 64 88
16 140 98 106 180 98 140
20 195 165 165 285 165 197
18 160 130 130 220 130 165
22 245 185 185 355 185 225

Manufacturing ASME B16.47 Series B Class 150 SS DIN 1.4307 Socket Weld Flange and 304L Stainless Steel Orifice Flanges for Offshore Oil & Gas Platforms

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

304L Stainless Steel Flange Dimensions

Normal Pipe Size (NPS) Of Flanges (I.D.) Inside Diameter Thickness Of Raised Face (RF)
(T)		 Outside Daimeter (O.D.) Raised Face
(R)		 RF
(Raised Face)		 Holes Of Bolts
(B)		 H T1 Thickness Of Flat Face (FF)
(T2)		 BC (Circle Of Bolt) Bolts Holes
Numbers
1/2 0.88 0.88 3.75 1.38 .063 0.62 1.50 0.50 0.82 2.62 4
1 1.36 1.06 4.88 2.00 .063 0.75 2.12 0.63 1.00 3.50 4
3/4 1.09 1.00 4.62 1.69 .063 0.75 1.88 .056 0.94 3.25 4
1-1/4 1.70 1.06 5.25 2.50 .063 0.75 2.50 0.69 1.00 3.88 4
2 2.44 1.31 6.50 3.62 .063 0.75 3.31 0.82 1.25 5.00 8
1-1/2 1.95 1.19 6.12 2.88 .063 0.88 2.75 0.75 1.13 4.50 4
2-1/2 2.94 1.50 7.50 4.12 .063 0.88 3.94 0.94 1.44 5.88 8
3 3.57 1.69 8.25 5.00 .063 0.88 4.62 1.06 1.63 6.62 8
3-1/2 4.07 1.75 9.00 5.50 .063 0.88 5.25 1.13 1.69 7.25 8
4 4.57 1.88 10.00 6.19 .063 0.88 5.75 1.19 1.82 7.88 8
5 5.66 2.00 11.00 7.31 .063 0.88 7.00 1.32 1.94 9.25 8
18 18.18 3.50 28.00 21.00 .063 1.38 21.00 2.32 3.44 24.75 24
6 6.72 2.06 12.50 8.50 .063 0.88 8.12 1.38 2.00 10.62 12
8 8.72 2.44 15.00 10.62 .063 1.00 10.25 1.56 2.38 13.00 12
10 10.88 2.62 17.50 12.75 .063 1.12 12.62 1.82 2.56 15.25 16
12 12.88 2.88 20.50 15.00 .063 1.25 14.75 1.94 2.82 17.75 16
14 14.14 3.00 23.00 16.25 .063 1.25 16.75 2.06 2.94 20.25 20
20 20.20 3.75 30.50 23.00 .063 1.38 23.12 2.44 3.69 27.00 24
16 16.16 3.25 25.50 18.50 .063 1.38 19.00 2.19 3.19 22.50 20
22 22.22 4.00 33.00 25.25 .063 1.63 25.25 2.57 3.94 29.25 24
24 24.25 4.19 36.00 27.25 .063 1.62 27.62 2.69 4.13 32.00 24

SS 304L Slip on Flange Dimensions

Size in Inch Size in mm No of Bolts Outer Dia. Hub OD ISO Stud Size Flange Length RF Height Flange Thick. RF Dia. PCD Hole Size Socket Bore Weight in kg
A C D F B E G H
1/2 15 4 90 30 M14 14 2 9.6 34.9 60.3 5/8 22.2 0.8
1 25 4 110 49 M14 16 2 12.7 50.8 79.4 5/8 34.5 0.9
3/4 20 4 100 38 M14 14 2 11.2 42.9 69.9 5/8 27.7 0.9
1 1/4 32 4 115 59 M14 19 2 14.3 63.5 88.9 5/8 43.2 1.4
2 50 4 150 78 M16 24 2 17.5 92.1 120.7 3/4 61.9 2.3
1 1/2 40 4 125 65 M14 21 2 15.9 73 98.4 5/8 49.5 1.4
2 1/2 65 4 180 90 M16 27 2 20.7 104.8 139.7 3/4 74.6 3.2
3 80 4 190 108 M16 29 2 22.3 127 152.4 3/4 90.7 3.7
4 100 8 230 135 M16 32 2 22.3 157.2 190.5 3/4 116.1 5.9
3 1/2 90 8 215 122 M16 30 2 22.3 139.7 177.8 3/4 103.4 5
5 125 8 255 164 M20 35 2 22.3 185.7 215.9 7/8 143.8 6.8
8 200 8 345 246 M20 43 2 27 269.9 298.5 7/8 221.5 13.7
10 250 12 405 305 M24 48 2 28.6 323.8 362 1 276.2 19.5
6 150 8 280 192 M20 38 2 23.9 215.9 241.3 7/8 170.7 8.6
12 300 12 485 365 M24 54 2 30.2 381 431.8 1 327 29
24 600 20 815 663 M33 81 2 46.1 692.2 749.3 1 3/8 616 100
16 400 16 595 457 M27 62 2 35 469.9 539.8 1 1/8 410.5 54
18 450 16 635 505 M30 67 2 38.1 533.4 577.9 1 1/4 461.8 59
14 350 12 535 400 M27 56 2 33.4 412.8 476.3 1 1/8 359.2 41
20 500 20 700 559 M30 71 2 41.3 584.2 635 1 1/4 513.1 75
API 605 Class 300/ 600/ 900 AISI 304L Lap Joint Flange and BS4504 UNS S30403 Spectacle Blind Flange manufacturer in India

304L SS Blind Flanges Dimensions

Size in Inch Size in mm ISO Stud Size RF Height Outer Dia. RF Dia. Hole Size PCD No of Bolts Bolt Size UNC Flange Thickness RF Stud Length Weight in kg
D A C E B
1/2 15 M20 7 135 34.9 7/8 88.9 4 3/4 30.2 120 3.2
3/4 20 M20 7 140 42.9 7/8 95.2 4 3/4 31.8 125 3.7
1 25 M24 7 160 50.8 1 108 4 7/8 35 140 5
1 1/4 32 M27 7 185 63.5 1 1/8 130.2 4 1 38.1 150 7.8
1 1/2 40 M30 7 205 73 1 1/4 146 4 1 1/8 44.5 170 10.5
2 50 M27 7 235 92.1 1 1/8 171.4 8 1 50.9 180 18
2 1/2 65 M30 7 265 104.8 1 1/4 196.8 8 1 1/8 57.2 195 25.5
3 80 M33 7 305 127 1 3/8 228.6 8 1 1/4 66.7 220 39
4 100 M39 7 355 157.2 1 5/8 273 8 1 1/2 76.2 255 61.5
5 125 M45 7 420 185.7 1 7/8 323.8 8 1 3/4 92.1 300 102
6 150 M52 7 485 215.9 2 1/8 368.3 8 2 108 345 157
8 200 M52 7 550 269.9 2 1/8 438.2 12 2 127 380 241
10 250 M64 7 675 323.8 2 5/8 539.8 12 2 1/2 165.1 490 470
12 300 M72 7 760 381 2 7/8 619.1 12 2 3/4 184.2 540 575
304L Stainless Steel Flanges Price Per Piece in India SS 304L Pipe Flanges Price in INR ASTM A182 F304L Flanges Price in UAE Dirham Stainless Steel 304L Flange Price in USD
FLANGES STAINLESS STEEL WN RF, 150#, 10S BORE, A182 GR. 304L Per KG 419 UAE Dirham 20.37 $5.55
SA 182 F304L ANSI B16.5 DN80, 150# SORF Per Kg 502 UAE Dirham 24.40 $6.64
FLANGES SS SW RF, 300#, 40S BORE, A182 GR 304L Per Kg 240 UAE Dirham 11.67 $3.18
FLANGES STAINLESS STEEL SA 182 F304L ANSI B16.5 DN100, 150# BLRF Per Kg 432 UAE Dirham 21.00 $5.72

Before Buying Compare our price with other SS 304L Flanges manufacturer in India. This is an approximate Price of A182 304L Flange in India. Feel free to contact us latest Stocklist of 304L Stainless Steel Flange in Mumbai.

304L Stainless Steel Weld Neck Flange Tolerance

Flange Tolerance Table
D Inside Diameter (I.D.)
  • 10" and smaller: ±1/32" (0.8 mm)
  • 12" thru 18": +1/8" (3.2 mm)
  • 20" and larger: -1/16" (1.6 mm)
K Length of hub
  • 10" and smaller: ±1/16" (1.6 mm)
  • 12" and larger: ±1/8" (3.2 mm)
B Diameter of contact face
  • 1/16" raised face: ±1/32" (0.8 mm)
  • 1/4" RF (Raised Face), T/G (Tongue & Groove), (male & female), (m/f): ±1/64" (0.4 millimeter)
A O.D. (Outside Diameter)
  • When O.D. (Outside Diameter) is 24" or less: ±1/16" (1.6 millimeter)
  • When O.D. (Outside Diameter) is over 24": ±1/8" (3.2 millimeter)
J Diameter of hub at base
  • When hub base is 24" or smaller: ±1/16" (1.6 millimeter)
  • When hub base is over 24": ±1/8" (3.2 millimeter)
P Drilling
  • Circle Bolts: ±1/16" (1.6 mm)
  • Bolts hole spacing: ±1/32" (0.8 mm)
  Eccentricity of bolt circle with respect to facing
  • 2 1/2" and smaller ±1/32" (0.8 mm) maximum
  • 3" and larger ±1/16" (1.6 mm) maximum
H Diameter of hub at point of welding
  • 5" and smaller: +3/32" (2.4 mm), -1/32" (0.8 mm)
  • 6" and larger: +5/32" (4.0 mm), -1/32 (0.8 mm)
C Thickness
  • 18" and smaller: ±1/8" (3.2 mm), -0"
  • 20" and larger: ±3/16" (4.8 mm), -0"
Check EN 1092-2 PN40 AISI 304L Stainless Steel Threaded Flange and 1.4307 Stainless Steel Forged Flange ASTM specification & price list
Grade C Mn Si P S Cr Mo Ni N
SS 304L 0.035 max 2.0 max 1.0 max 0.045 max 0.03 max 18 - 20 - 8 - 13 -
STANDARD WERKSTOFF NR. UNS JIS BS GOST AFNOR EN
SS 304L 1.4306 / 1.4307 S30403 SUS 304L 3304S11 03-18-11 Z3CN18-10 X2CrNi18-9 / X2CrNi19-11
Density Melting Point Tensile Strength Yield Strength (0.2%Offset) Elongation
8.0 g/cm3 1400 °C (2550 °F) Psi - 75000 , MPa - 515 Psi - 30000 , MPa - 205 35 %
Density
lbm/in3		 Thermal Conductivity
(BTU/h ft. °F)		 Electrical
Resistivity
(in x 10-6)		 Modulus of
Elasticity
(psi x 106		 Coefficient of
Thermal Expansion
(in/in)/
°F x 10-6		 Specific Heat
(BTU/lb/
°F)		 Melting
Range
(°F)
at 68°F: 0.285 9.4 at 212°F 28.3 at 68°F 28 9.4 at 32 – 212°F 0.1200 at 68°F to 212°F 2500 to 2590
12.4 at 932 °F 39.4 at 752°F 10.2 at 32 – 1000°F
49.6 at 1652 °F 10.4 at 32 – 1500°F
Stainless Steel 304L Weld Neck Flanges

Stainless Steel 304L Weld Neck Flanges

300 LBS SA182 Gr F304L WNRF Flange

300 LBS SA182 Gr F304L WNRF Flange

Stainless Steel UNS S30403 Socket Weld Flange

Stainless Steel UNS S30403 Socket Weld Flange

600 LBS 304L SS SWRF Flanges

600 LBS 304L SS SWRF Flanges

SA182 Grade F304L Slip On Flange

SA182 Grade F304L Slip On Flange

150 LBS 304L SS SORF Flanges

150 LBS 304L SS SORF Flanges

DIN 1.4306 Blind Flange

DIN 1.4306 Blind Flange

900 LBS SS 304L BLRF Flanges

900 LBS SS 304L BLRF Flanges

ASME SA182 F304L Lapped Joint Flange

ASME SA182 F304L Lapped Joint Flange

ASTM A182 Gr F304L Orifice Flanges

ASTM A182 Gr F304L Orifice Flanges

304L Stainless Steel Spectacle Blind Flange

304L Stainless Steel Spectacle Blind Flange

2500 LBS Stainless Steel 304L Tongue & Groove Flange

2500 LBS Stainless Steel 304L Tongue & Groove Flange

A182 F304L Nipoflange Flanges

A182 F304L Nipoflange Flanges

1500 LBS ASTM A182 F304L Long Weld Neck Flange

1500 LBS ASTM A182 F304L Long Weld Neck Flange

A182 Gr F304L Reducing Flanges

A182 Gr F304L Reducing Flanges

SS 304L Ring Joint Flange

SS 304L Ring Joint Flange

5000 NB 304L Stainless Steel Girth Flanges

5000 NB 304L Stainless Steel Girth Flanges

ASTM A182 F304L Stainless Steel Expander Flanges

ASTM A182 F304L Stainless Steel Expander Flanges

15 NB UNS S30403 Screwed Flange

15 NB UNS S30403 Screwed Flange

ASTM A182 Grade F304L Threaded Flange

ASTM A182 Grade F304L Threaded Flange

304L Stainless Steel Flanges

304L Stainless Steel Flanges

Yield Strength 25 ksi
Melting Point 1450 °C

Rapid cooling following heating to 1010-1120°C can be used for solution treatment or annealing.

  • Marine Applications
  • Fossil Fuel Power Plants
  • Paper & Pulp
  • Refineries
  • Nuclear Power
  • Oil And Gas Industry
  • Power Plants
  • Ship Building
304L SS Spectacle Blind Flanges Stainless Steel 304L Socket Weld Flange
UNS S30403 Industrial Flanges 304L Stainless Steel Flanges
SS 304L WNRF Flanges ASTM A182 F304L Weld Neck Flange
A182 F304L Threaded Flanges DIN 1.4306 Pipe Flanges
ASTM A182 Gr F304L Lap Joint Flanges SS 304L Socket Weld Flanges
Stainless Steel UNS S30403 Reducing Flanges SS 304L Plate Flange
Stainless Steel 304L Lap Joint Flange 304L Stainless Steel RTJ Flange
304L Stainless Steel Ring Type Joint Flanges 304L Stainless Steel Flange
ASME SA182 F304L Slip On Flanges Stainless Steel 304L Flanges
SA182 Grade F304L Socket Weld Flanges 304L Stainless Steel Pipe Flange
SA182 Gr F304L Screwed Flanges ASTM A182 F304L Stainless Steel Lap Joint Flanges
SS 304L Forged Flanges 304L Stainless Steel Blind Flanges
ASME SA182 F304L Pipe Flange A182 Gr F304L Blind Flanges
ASTM A182 Grade F304L Orifice Flanges Stainless Steel 304L Lapped joint Flanges

When compared to "normal" grade 304 stainless steel alloy, grade 304L has a modest but significant drop in important mechanical performance attributes. The ultimate tensile strength (UTS) of 304L, for example, is about 85 ksi (586 MPa), which is lower than the UTS of ordinary grade 304 stainless steel, which is 90 ksi (620 MPa). As a result, a 304L SS flange would be structurally weaker than a regular 304 flange.

Both with and without fillers, the fusion welding performance of stainless steel 304 is excellent. Grade 308 stainless steel filler rods and electrodes are recommended for stainless steel 304. The recommended filler for 304L is 308L.

Are you looking for a Manufacturer? check our export destinations

PN16 Slip-on Flange 304L stainless steel

PN16 Slip-on Flange 304L stainless steel

Dubai, Qatar, United States,Poland, Indonesia, South Africa,Jakarta, Bangladesh, Finland, Brazil, Hong Kong, Oman, South Korea, Kuwait, Chile, Malaysia, South Africa, Kuwait, Norway, Europe, Belgium, Tehran -Iran, Kuala Lumpur, Vietnam, Czechia, Nigeria, Bahrain, NY 12203 (USA), Argentina, Jakarta -Indonesia, Istanbul- Turkey, Singapore, Malaysia, France, Netherlands, Dubai- UAE, Iran, Romania, United States, Indonesia

PN10 Blind Flange 304L stainless steel

PN10 Blind Flange 304L stainless steel

Singapore, Turkey, Greece, Dammam -KSA, Philippines, Los Alamos -Mexico, Austria, Canada

Class 150 150 304L stainless steel

Class 150 150 304L stainless steel

United Kingdom (UK), Spain, Thailand, Japan, USA, Malaysia, Saudi Arabia (KSA)

Flanges Material



Pipe Fittings Material



Other Products