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Stainless Steel 904L Flanges

SS 904L RTJ Flange, UNS N08904 Groove Flange, 904L SS Reducing Flange, SS 904L Longweld Neck Flange, Stainless Steel 904L Blind Flange, DIN 1.4539 Orifice Flange, DIN 1.4539 Flat Flange.

About Stainless Steel 904L Flanges

Stainless Steel 904L Flanges, which have a nickel concentration of 25%, are an excellent substitute for most traditional stainless steel. Chloride stress corrosion cracking can happen to conventional stainless steels like these Stainless Steel 904L Flanges under certain circumstances. With increased nickel and molybdenum content, these flanges become more resistant to SSC. As a result, austenitic stainless steels with superior performance, such as these Stainless Steel 904L Flanges, have excellent resistance to SSC.

SS 904L Flanges are used to connect pipes and many sorts of industrial equipment. Bolts are also utilised to fit the flanges when they are being joined. Flanges are designed to support heavy loads. It is composed of steel and has a circular form. These flanges are beneficial in many businesses where high temperatures occur often. 

Properties of Stainless Steel 904L Flanges:

  • The combination of nickel, chromium, and molybdenum gives it exceptional strength and corrosion resistance.
  • These flanges also have strong mechanical properties, such as a minimum yield and tensile strength of 220MPa and 490 MPa respectively. 
  • The substance has a high melting point of 1350 degrees Celsius. A pipe’s terminus is sealed off with an Alloy 904L Blind Flange, usually permanently.
  • The substance is a 904-steel grade with minimal carbon content. As a result, these flanges may be easily welded and formed without running the danger of intergranular corrosion or grain formation from carbide precipitation during welding. 
  • A plate is connected to the SS 904L flange to provide more room for welding, bolting, and other attaching techniques.
  • The flanges are specified by ASTM B649 and meet several ANSI, ASME, DIN, and EN standards. 
  • These flanges come in various diameters, from 12 to 48 inches, and pressure classes. 
  • Weld neck elevated face flanges are ASM 904L flanges. These flanges may be found in pressure categories from 150 to 2500 and PN6 to PN64, and they feature raised faces and welded necks for enhanced strength.
  • Because they are made to maintain pressure in a high-pressure location and are robust to diluted acids like sulphuric acids in petroleum and chemical facilities and oil refineries, 904L stainless steel flanges are frequently used to seal the tip of the pipe of a pressure vessel.
  • These stainless steel lap joint flanges are immune to chloride cracking from stress corrosion.
  • They are a more affordable option for moving acidic slurries. These stainless steel 904L threaded flanges are heat and oxidation resistant.

Uses of Stainless Steel 904L Flanges:

904L SS flanges are used in many industries, such as the pharma, petrochemical, marine, seawater, and power-generating sectors. Heating systems, boilers, condensers, the paper and pulp industry, offshore oil drilling, and the manufacture of petrochemical and saltwater equipment all employ SS Flanges.

904L SS Threaded Flange, SS 904L Slip On Flange, ASTM A182 SS 904L Weldneck Flange, ASME SA182 SS 904L Socketweld Flange, UNS N08904 Forge Flange, 904L SS SORF Flange, UNS N08904 Square Flange, DIN 1.4539 Lap Joint Flange.

Specification of Stainless Steel 904L Flanges

SpecificationASTM A182 / ASME SA182
Dimension StandardANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc.
StandardANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc.
Size1/2" (15 NB) to 48" (1200NB)
Class / Pressure150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc.
Flange Face TypeFlate Face (FF), Raised Face (RF), Ring Type Joint (RTJ)
DIN FlangesDIN 2527, 2566, 2573, 2576, 2641,2642, 2655, 2656, 2627, 2628, 2629, 2631, 2632, 2633, 2634, 2635, 2636, 2637,2638, 2673.
JIS FlangesJIS B2220 5K, JIS B2220 10K, JIS B2220 16K, JIS B2220 20K
BS FlangesBS4504 PN 6, BS 4504 PN 10, BS4504 PN 16, BS4504 PN 25, BS4504 PN 40, BS 4504 PN 64, BS 4504 PN 100, BS 4504 PN 160, BS 4504 PN 250, BS 10, BS Table D, BS Table E, BS Table F, BS Table H.

Ready stock of Flanges available for Stainless Steel 904L Flanges

Equivalent Grades of Stainless Steel 904L Flanges

STANDARDWERKSTOFF NR.UNSJISBSKSAFNOREN
SS 904L1.4539N08904SUS 904L904S13STS 317J5LZ2 NCDU 25-20X1NiCrMoCu25-20-5

Chemical Composition of Stainless Steel 904L Flanges

GradeCMnSiPSCrMoNiCu
SS 904L0.020 max2.00 max1.00 max0.040 max0.030 max19.00 – 23.004.00 – 5.00 max23.00 – 28.001.00 – 2.00

Mechanical Properties of Stainless Steel 904L Flanges

DensityMelting PointTensile StrengthYield Strength (0.2%Offset)Elongation
7.95 g/cm31350 °C (2460 °F)Psi – 71000 , MPa – 490Psi – 32000 , MPa – 22035 %

Other Types of Flanges of Stainless Steel 904L Flanges

Dimensions Standard Of Stainless Steel 904L Flanges

Nominal SizeOutside Diameter
(OD)
Min. Thickness
(T)
RF Dia.
(R)
No. of Bolt HolesDiameter of HolesBolt Circle
(BC)
SO Bore ID
(SB)
WN Bore ID
(WB)
Dia. Hub Base
(HB)
Dia. of Hub Top
(HT)
SO LTH
(SL)
WN LTH
(WL)
123.500.381.3840.622.380.880.621.190.840.561.81
343.880.441.6940.622.751.090.821.501.050.562.00
14.250.502.0040.623.121.361.051.941.320.622.12
1144.620.562.5040.623.501.701.382.311.660.752.19
1125.000.622.8840.623.881.951.612.561.900.812.38
26.000.693.6240.754.752.442.073.062.380.942.44
2127.000.814.1240.755.502.942.473.562.881.062.69
37.500.885.0040.756.003.573.074.253.501.122.69
3128.500.885.5080.757.004.073.554.814.001.192.75
49.000.886.1980.757.504.574.035.314.501.252.94
510.000.887.3180.888.505.665.056.445.561.383.44
611.000.948.5080.889.506.726.077.566.631.503.44
813.501.0610.6280.8811.758.727.989.698.631.693.94
1016.001.1212.75121.0014.2510.8810.0212.0010.751.883.94
1219.001.1915.00121.0017.0012.8812.0014.3812.752.124.44
1421.001.3116.25121.1218.7514.1413.2515.7514.002.194.94
1623.501.3818.50161.1221.2516.1615.2518.0016.002.444.94
1825.001.5021.00161.2522.7518.1817.2519.8818.002.625.44
2027.501.6223.00201.2525.0020.2019.2522.0020.002.815.62
2229.501.7525.25201.3827.2522.2221.2524.2522.003.075.82
2432.001.8127.25201.3829.5024.2523.2526.1224.003.195.94

Size Of Stainless Steel 904L Flanges

Nom. Pipe SizeoT1RxNo.2/Dia. of HolesBolt Circle Dia.L21HB23LBrL34B3D
1/23.500.441.381.194-0.622.381.880.840.620.620.880.120.620.900.38
3/43.880.501.691.504-0.622.752.061.050.820.621.090.120.621.110.44
14.250.562.001.944-0.623.122.191.321.050.691.360.120.691.380.50
1-1/44.620.622.502.314-0.623.502.251.661.380.811.700.190.811.720.56
1-1/25.000.682.882.564-0.623.882.441.901.610.881.950.250.881.970.62
26.000.753.623.064-0.754.752.502.382.071.002.440.311.002.460.69
2-1/27.000.884.123.564-0.755.502.752.882.471.122.940.311.122.970.75
37.500.945.004.254-0.756.002.753.503.071.193.570.381.193.600.81
3-1/28.500.945.504.818-0.757.002.814.003.551.254.070.381.254.100.88
49.000.946.195.318-0.757.503.004.504.031.314.570.441.314.600.94
510.000.947.316.448-0.888.503.505.565.051.445.660.441.445.690.94
611.001.008.507.568-0.889.503.506.636.071.566.720.501.566.751.06
813.501.1210.629.698-0.8811.754.008.637.981.758.720.501.758.751.25
1016.001.1912.7512.0012-1.0014.254.0010.7510.021.9410.880.501.9410.921.31
1219.001.2515.0014.3812-1.0017.004.5012.7512.002.1912.880.502.1912.921.56
1421.001.3816.2515.7512-1.1218.755.0014.0013.252.2514.140.503.1214.181.63
1623.501.4418.5018.0016-1.1221.255.0016.0015.252.5016.160.503.4416.191.75
1825.001.5621.0019.8816-1.2522.755.5018.0017.252.6918.180.503.8118.201.94
2027.501.6923.0022.0020-1.2525.005.6920.0019.252.8820.200.504.0620.252.13
2229.501.8125.2524.2520-1.3827.255.8822.0021.253.1322.220.504.2522.252.38
2432.001.8827.2526.1220-1.3829.506.0024.0023.253.2524.250.504.3824.252.50

Weight Chart Of Stainless Steel 904L Flanges

Standard Of FlangesClass Of FlangesDiameter Of FlangesDiameter Of Bolt CircleBolts NumberSize Of BoltBolt Hole Diameter
AS4087 FlangesPN14 Flanges95674M1214
AS 2129 FlangeTable C Flanges956741314
Table D Flanges956741314
Table E Flanges956741314
Table F Flanges956741314
Table H Flanges1148341617
Table J Flanges1148341617
ANSI B16.5 FlangesANSI 150 Flanges896041316
ANSI 300 Flanges956741316
ANSI 600 Flanges956741316
ANSI 900 Flanges1218341922
ANSI 1500 Flanges1218341922
ISO 7005 (DIN) FlangePN6 Flanges80554M1011
PN10 Flanges95654M1214
PN16 Flanges95654M1214
PN20 Flanges9060.54M1416
PN25 Flanges95654M1214
PN40 Flanges95654M1214

Pressure Rating Of Stainless Steel 904L Flanges

Temp. ℃Pressure-ASME temperature rating for B16.47  by class, bar   
 75150300400600900
-29 to 3810.020.051.768.9103.4155.1
509.819.551.768.9103.4155.1
1008.817.750.767.5101.3152.0
1507.915.845.961.291.9137.8
2006.913.842.756.985.3128.0
2506.012.140.553.980.9121.4
3005.110.238.951.877.7116.6

industrial use flanges for Stainless Steel 904L Flanges

Price Of Stainless Steel 904L Flanges

Stainless Steel Forged FlangesUSD $2.05 - $10.06 / Piece (FOB Price) on request
Stainless Steel Blind FlangesUSD $2.05 - $10.06 / Piece (FOB Price) on request
Stainless Steel Slip On FlangeUSD $2.05 - $10.06 / Piece (FOB Price) on request
Stainless Steel Socketweld FlangesUSD $2.05 - $10.06 / Piece (FOB Price) on request
Stainless Steel Long Weld Neck FlangesUSD $2.05 - $10.06 / Piece (FOB Price) on request

Application Of Stainless Steel 904L Flanges

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Testing Of Stainless Steel 904L Flanges

We known for its accurate and perfect dimensions. We thoroughly test all our products before shipping them to the customers. We carry out destructive as well as non-destructive tests on all our products.

Packing Of Stainless Steel 904L Flanges

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