Stainless Steel 904L Flanges manufacturer in India

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EN 1092-2 PN10 Grade 904L Blind Flange and ASTM A182 F904L SORF Flanges exporter in Mumbai

What is Stainless Steel 904L Flanges?
The Stainless Steel 904L material is a super austenitic alloy steel, which is used for moderate to high corrosion resistance applications. They can be used in a wide range of process environments. The Stainless Steel 904L Flanges possess stronger magnetic properties compared to the 316L and 317L stainless steel grades. It shows good resistive properties in acidic environments, and also against crevice corrosion and stress corrosion cracking. They are also known to resist pitting in chloride solution.
The Stainless Steel 904L Flanges remains non-magnetic in all conditions. They are also known to possess good weldability and formability. The presence of copper and molybdenum in the composition of the Stainless Steel 904L alloy improves its corrosion resistance properties in different environments.
The Stainless Steel 904L material basically comes under the ASTM B649 specifications and they are made using various international standards such as ASME, ANSI, DIN and EN. The size of the Stainless Steel 904L Flanges can range between ½” and 48”, and their pressure varies between classes 150 to 2500, and PN6 through PN64. These flanges are used in various industries where the flanges have to deal with corrosion in several environments, like marine application, petrochemical, pharmaceutical, power generation, and many more. The Stainless Steel 904L Flanges are also used in high temperature applications like heat exchangers, condensers, boilers, etc.
The benefits offered by Stainless Steel 904L Flanges would include:

  1. Better resistance to corrosion compared to the 316L and 317L grades.
  2. Improved stress corrosion cracking resistance.
  3. Non-magnetic in all conditions.
  4. High weldability and formability.
  5. Excellent resistance to different types of acidic environments.

SA182 F904L Weld Neck Flange Vs ASTM A182 F904L Slip on Flange
The first considerable difference between SA182 F904L Weld Neck Flange and ASTM A182 F904L Slip on Flange are in their structure. One can easily recognize the weld neck flange by its hub that tapers to the piping system from the bolted connection. On the other hand, the slip on flange is connected to the piping system through double welding, done on the inside and the outside of the flange. The welding seam form of weld neck flange is girth weld whereas in case of slip on flange, it is a fillet weld. They have different nominal pressures too, the weld neck flange has a higher nominal pressure range compared to the slip on flange. And thus, weld neck flanges are used for high pressure applications whereas the slip on flanges are used in low pressure services where there is a lesser risk of leakage.

904L Stainless Steel Blind Flange Vs A182 Gr F904l Socket Weld Flange
904L Stainless Steel Blind Flange looks like a steel plate without a central hole. They have bolted holes in the surrounding areas. The flanges are mostly used for blocking or cutting off the piping connection. They are primarily used in those piping areas that require frequent maintenance, inspections or modifications. The 904L Stainless Steel Blind Flange is also popularly used to block nozzles of unused valves and piping ends.
The A182 Gr F904l Socket Weld Flange is primarily used for small sized pipes that have high pressure flows inside it. These are joined by placing the pipe inside the socket and then completing it with a fillet weld on the top. This helps to achieve a smooth bore, and enables better fluid or gas flow inside the pipe. They are mostly used in pipes of smaller diameter, generally NPS 2 or below.

What are Standard welding processes for 904l Flanges
All standard welding processes, like Stick Welding (SMAW), MIG Welding GMAW, TIG Welding GTAW and Flux Cored Arc Welding FCAW, can be used for welding 904L flanges. This is due to the presence of low carbon content in the alloy of 904L grade material.

Stainless Steel 904l Flanges

Stainless Steel 904l Flanges

Manufacturer of BS4504 PN16 Grade 904L Stainless Steel Slip On Flange and UNS N08904 904L Weld Neck Flange Mumbai is capable of distributing in excess of 1000 tonnes per annum

Table of Content


Size Chart 1/2″(15 NB) to 48″ (1200NB)
Pressure Rating Chart 600 LBS, 150 LBS, 2500 LBS, 900 LBS, 300 LBS, 1500 LBS
DIN Pressure 25Bar 16Bar 40Bar 6Bar 10Bar / PN25 PN64 PN10 PN6 PN16 PN40
Manufacturer of Connect Type/ Flange Face Type RF, RTJ, FF, LJF, Small Tongue, Large Tongue & Groove
JIS 16 K, 5K, 20 K, 30 K, 10 K, 40 K, 63 K
UNI / EN 16Bar 6Bar 40Bar 10Bar 25Bar
Equipment Press machine, Bending machine, Pushing Machine, Sand-blasting machine, electric bevelling machine etc
Common Types By Manufacturer Threaded / Screwed / Forged / Plate
Test Direct-reading Spectrograph, Ultrasonic flaw detector, Magnetic particle detector, X-ray detector, Hydrostatic testing machine
Origin West Europe / Japan / Indian / USA / Korean
Manufacturer of GOST, ANSI, DIN, SABS, JIS, BS, AS2129, NFE, UNI, AWWA, EN etc.
Production technique Used By Manufacturer Heat treated, Forged and machined
Coating Yellow Transparent, Zinc Plated, Anti-rust Paint, Oil Black Paint, Cold and Hot Dip Galvanized
Standards Provided By Manufacturer API7S-43, BS1560-3.1, API605, B16.48, ISO70051, MSS S44, ANSI/ASME B16.5, B16.47 Series A & B, BS4504, BS 10, EN-1092, DIN, API7S-15, JISB2220, ASME/ANSI B16.5/16.36/16.47A/16.47B, EN1092

Petromet Flage is Stainless Steel 904L Flanges importer, distributor, stockists, dealers, stockholders, wholesalers, exporters, supplier and Manufacturer in Mumbai

904L SS Slip on Flange Dimensions

Size in InchSize in mmNo of BoltsOuter Dia.Hub ODISO Stud SizeFlange LengthRF HeightFlange Thick.RF Dia.PCDHole SizeSocket BoreWeight in kg
ACDFBEGH
1/21549030M141429.634.960.35/822.20.8
125411049M1416212.750.879.45/834.50.9
3/420410038M1414211.242.969.95/827.70.9
1 1/432411559M1419214.363.588.95/843.21.4
250415078M1624217.592.1120.73/461.92.3
1 1/240412565M1421215.97398.45/849.51.4
2 1/265418090M1627220.7104.8139.73/474.63.2
3804190108M1629222.3127152.43/490.73.7
41008230135M1632222.3157.2190.53/4116.15.9
3 1/2908215122M1630222.3139.7177.83/4103.45
51258255164M2035222.3185.7215.97/8143.86.8
82008345246M2043227269.9298.57/8221.513.7
1025012405305M2448228.6323.83621276.219.5
61508280192M2038223.9215.9241.37/8170.78.6
1230012485365M2454230.2381431.8132729
2460020815663M3381246.1692.2749.31 3/8616100
1640016595457M2762235469.9539.81 1/8410.554
1845016635505M3067238.1533.4577.91 1/4461.859
1435012535400M2756233.4412.8476.31 1/8359.241
2050020700559M3071241.3584.26351 1/4513.175

904L SS Weld Neck Flange Dimensions

Flange NPSHInside
Diameter		Flat Face
Thickness (T2)		Outside
Diameter		Raised Face
(RF)		Raised Face
(R)		H1Raised Face
Thickness (T)		T1Bolt Circle
(BC)		Bolt Hole
(B)		No. of
Bolt Holes
1/2"1.19"0.62"1.82"3.50".063"1.38"0.84"1.88".38"2.38".62"4
1-1/4"2.31"1.38"2.19"4.62".063"2.50"1.66"2.25".56"3.50".62"4
3/4"1.50"0.82"2.00"3.88".063"1.69"1.05"2.06".44"2.75".62"4
1-1/2"2.56"1.61"2.38"5.00".063"2.88"1.90"2.44".62"3.88".62"4
1"1.94"1.05"2.13"4.25".063"2.00"1.32"2.19".50"3.12".62"4
2"3.06"2.07"2.44"6.00".063"3.62"2.38"2.50".69"4.75".75"4
2-1/2"3.56"2.47"2.69"7.00".063"4.12"2.88"2.75".82"5.50".75"4
3"4.25"3.07"2.69"7.50".063"5.00"3.50"2.75".88"6.00".75"4
4"5.31"4.03"2.94"9.00".063"6.19"4.50"3.00".88"7.50".75"8
5"6.44"5.05"3.44"10.00".063"7.31"5.56"3.50".88"8.50".88"8
3-1/2"4.81"3.55"2.75"8.50".063"5.50"4.00"2.81".88"7.00".75"8
6"7.56"6.07"3.44"11.00".063"8.50"6.63"3.50".94"9.50".88"8
8"9.69"7.98"3.94"13.50".063"10.62"8.63"4.00"1.06"11.75".88"8
22"24.25"21.25"5.82"29.50".063"25.25"22.00"5.88"1.75"27.25"1.38"20
10"12.00"10.02"3.94"16.00".063"12.75"10.75"4.00"1.13"14.25"1.00"12
12"14.38"12.00"4.44"19.00".063"15.00"12.75"4.50"1.19"17.00"1.00"12
16"18.00"15.25"4.94"23.50".063"18.50"16.00"5.00"1.38"21.25"1.12"16
18"19.88"17.25"5.44"25.00".063"21.00"18.00"5.50"1.50"22.75"1.25"16
14"15.75"13.25"4.94"21.00".063"16.25"14.00"5.00"1.32"18.75"1.12"12
20"22.00"19.25"5.63"27.50".063"23.00"20.00"5.69"1.63"25.00"1.25"20
24"26.12"23.25"5.94"32.00".063"27.25"24.00"6.00"1.82"29.50"1.38"20
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

Supplier of Gost 12815 ASTM A182 F904L Socket Weld Flange and SS 904L Reducing Flanges, Call Petromet Flange for a free sample

Stainless Steel 347 Flanges Price Per Piece in India 347 SS Pipe Flanges Price in INR ASTM A182 F347 Flanges Price in UAE Dirham 347 Stainless Steel Flange Price in USD
Astm 904l Stainless Steel Forging Flange Per Pcs 4179.17 UAE Dirham 183.65 $55.16
machining 904l flange dn200 flange Per Pcs 1517.56 UAE Dirham 73.57 $20.03
Socket Weld Raise Flange PN10 SS F904L ASTM B16.5 Per Kg 274.27 UAE Dirham 13.30 $3.62
flange 904L stainless steel UNS NO8904 Per Kg 757.64 UAE Dirham 36.73 $10

Petromet Flange is a leading 904L Flanges Manufacturers. We sell high quality 904L Stainless Steel Flanges at affordable prices in UK. We are Supplier and Stockists of SA182 F904L Weld Neck Flange.

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
Nom Pipe Size OD Sch 10 Sch 20 Sch 30 STD Wall Sch 40 Sch 60 EXT Hvy Sch 80 Sch 100 Sch 120 Sch 140 Sch 160 XX Hvy
½ 0.84 0.083 0.109 0.109 0.147 0.147 0.188 0.294
¾ 1.05 0.083 0.113 0.113 0.154 0.154 0.219 0.308
1 1.315 0.109 0.133 0.133 0.179 0.179 0.25 0.358
1 ¼ 1.66 0.109 0.14 0.14 0.191 0.191 0.25 0.382
1 ½ 1.9 0.109 0.145 0.145 0.2 0.2 0.281 0.4
2 2.375 0.109 0.154 0.154 0.218 0.218 0.344 0.436
2 ½ 2.875 0.12 0.203 0.203 0.276 0.276 0.375 0.552
3 3.5 0.12 0.216 0.216 0.3 0.3 0.438 0.6
3 ½ 4 0.12 0.226 0.226 0.318 0.318 0.636
4 4.5 0.12 0.237 0.237 0.337 0.337 0.438 0.531 0.674
5 5.563 0.134 0.258 0.258 0.375 0.375 0.5 0.625 0.75
6 6.625 0.134 0.28 0.28 0.432 0.432 0.562 0.719 0.864
8 8.625 0.148 0.25 0.277 0.322 0.322 0.406 0.5 0.5 0.594 0.719 0.812 0.906 0.875
10 10.75 0.165 0.25 0.307 0.365 0.365 0.5 0.5 0.594 0.719 0.844 1 1.125 1
12 12.75 0.18 0.25 0.33 0.375 0.406 0.562 0.5 0.688 0.844 1 1.125 1.312 1
14 14 0.25 0.312 0.375 0.375 0.438 0.594 0.5 0.75 0.938 1.094 1.25 1.406
16 16 0.25 0.312 0.375 0.375 0.5 0.656 0.5 0.844 1.031 1.219 1.438 1.594
18 18 0.25 0.312 0.438 0.375 0.562 0.75 0.5 0.938 1.156 1.375 1.562 1.781
20 20 0.25 0.375 0.5 0.375 0.594 0.812 0.5 1.031 1.281 1.5 1.75 1.969
22 22 0.25 0.375 0.5
24 24 0.25 0.375 0.562 0.375 0.688 0.969 0.5 1.219 1.531 1.812 2.062 2.344
26 26 0.375 0.5
30 30 0.312 0.5 0.625 0.375 0.5
36 36 0.312 0.5 0.625 0.375 0.75 0.5
40 40 0.375 0.5
42 42 0.375 0.5
48 48 0.375 0.5
Bulk discount on raised and flat face AWWA C207 AISI 904L Stainless Steel Orifice Flange and 904L EN 1.4539 Forged flanges in Mumbai

Hot Working: After uniform heating to 2000-2200 F, hot work should begin. Do not work the material at temperatures lower than 1800 degrees Fahrenheit. To achieve optimal ductility and corrosion resistance, all hot work should be followed by full annealing.

Cold Working: Despite the higher forces required, 904L will respond similarly to other austenitic stainless steels such as 304, 316, or 317. The majority of typical operations can be completed successfully.

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"
Grade Carbon Manganese Silicon Phosphorus Sulfur Chromium Molybdenum Nickel Copper
SS 904L 0.020 max 2.00 max 1.00 max 0.040 max 0.030 max 19.00 - 23.00 4.00 - 5.00 max 23.00 - 28.00 1.00 - 2.00
Density Elongation Melting Point Yield Strength (0.2%Offset) Tensile Strength
7.95 g/cm3 35 % 1350 °C (2460 °F) Psi - 32000 , MPa - 220 Psi - 71000 , MPa - 490
Grade Density
(kg/m 3 )		 Elastic Modulus
(GPa)		 Mean Co-eff of Thermal Expansion (µm/m/°C) Thermal Conductivity
(W/m.K)		 Specific Heat 0-100°C
(J/kg.K)		 Elec Resistivity
(nΩ.m)
0-100°C 0-315°C 0-538°C At 20°C At 500°C
904L 7900 190 15 - - 11.5 - 500 952
STANDARD WERKSTOFF NR. UNS JIS BS KS AFNOR EN
SS 904L 1.4539 N08904 SUS 904L 904S13 STS 317J5L Z2 NCDU 25-20 X1NiCrMoCu25-20-5
Hardness 230 HB
Looking for 904L Stainless Steel Flanges manufacturer in India? Contact Petromet Flange, Check price list/ pressure temperature ratings for EN 1092-2/ ASME B16.5 AISI 904L Spectacle Blind Flange and SS 1.4539 Spades/ Ring Spacers in Mumbai
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904L Flanges

904L Flanges

SS 904L Flanges

SS 904L Flanges

  • X-ray detector
  • Flaring Test
  • UI trasonic flaw detector
  • Flattening Test
  • PMI Testing
  • Hardness Test
  • Pitting Resistance Test
  • Magnetic particle detector
  • Hydrostatic testing machine
  • Direct-reading Spectrograph
  • Ease of cleaning
  • Beauty of appearance
  • East of fabrication
  • Excellent formability
  • High strength with low weight
  • Resistance to oxidation
  • Prevention of product contamination
  • Refineries
  • Nuclear Power
  • Paper & Pulp
  • Ship Building
  • Oil And Gas Industry
  • Power Plants
  • Marine Applications
  • Fossil Fuel Power Plants

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