ASTM B649 904L Flanges

Alloy 904L is an austenitic stainless steel grade. Flanges produced from this material have been intended for use under severe corrosion conditions, especially for environments that contain sulfuric acid. Apart from sulfuric acid, these flanges offer very good resistance to attacks in other acidic environments,  particularly those containing phosphoric acid and acetic acid. In comparison to stainless steel alloy 304L as well as alloy 316L, the 904L Stainless Steel Flanges exhibit superior resistance to pitting corrosion, in addition to SCC or stress corrosion cracking and much better resistance to crevice corrosion as well. The alloying of high chromium and nickel content, in conjunction with additions of elements molybdenum and copper, prove to be vital for the corrosion resistance property of this superalloy.

Manufacturers of 904L Stainless Steel WNRF Flanges, Stainless Steel 904L Flanges Dimensions

ASTM B649 904L Flanges

ASTM B649 904L Flanges

904L stainless steel Flanges

904L stainless steel Flanges

ASME SB649 904L Weld Neck Flanges

ASME SB649 904L Weld Neck Flanges

Being a low carbon alloy, the ASTM B649 904L Flanges do not get corroded when welded upon by conventionally used techniques, both with and without the addition of any filler metal. And since the A182 Grade 904L WNRF Flange is required to be welded both in the inner and outer diameter of the flange, this material is regularly considered for welding based operations in applications such as heat exchangers, pollution control equipment, oil and gas well piping, chemical processing,  acid production and pickling equipment. Typically after being hot worked, forgings under specification ASTM A182 such as the UNS N08904 Slip On Flange are required to be cooled to a specific temperature before any heat treatment is performed on them. Which means that the heat treatment on the SS 904L Blind Flange, is to be performed in accordance with certain requirements, for instance, the kind of heat treatment given, austenitizing/solution temperature, as well as cooling media, and quenching.

Specification Format of SS B366 904L Flange

Standards GOST Flange, JISB2220, BS1560-3.1, API7S-15, API7S-43, API605, EN1092, BS, BS4504, BS 10, EN-1092, DIN, ANSI, ASME, DIN, MSS S44, ISO70051, ANSI/ASME B16.5, ASME/ANSI B16.5/16.36/16.47A/16.47B, B16.47 Series A & B, B16.48, EN
Pressure Rating ANSI Class 1500, Class 150, Class 900, Class 2500, Class 300, Class 600,
Pressure Calculation in DIN 10Bar, 16Bar, 25Bar, 40Bar, 6Bar, / PN16, PN64, PN40, PN25, PN10, PN6
JIS 16 K, 20 K, 5K, 10 K, 40 K, 63 K, 30 K,
UNI 10Bar 16Bar 6Bar 25Bar 40Bar
EN 6Bar 25Bar 40Bar 10Bar 16Bar
Most common Types Threaded / Screwed / Forged / Plate
Production technique
  • Forged, Heat treated and machined
Shapes and Types we produce Large Male-Female (LMF), Ring Type Joint (RTJ), Flat Face (FF), Small Tongue, Small Male-Female (SMF),Raised Face (RF), Large Tongue & Groove, Groove, Lap-Joint Face (LJF)
Test Direct-reading Spectrograph, Magnetic particle detector, Hydrostatic testing machine, X-ray detector, UI trasonic flaw detector
Equipment Pushing Machine, Press machine, Bending machine, Sand-blasting machine, electric bevelling machine etc

SS 904L Blind Flanges Suppliers, Huge Stock of ANSI B16.5 SS 904L Orifice Flanges, Traders of Stainless Steel 904L Slip On Flanges

Available Sizes of 904L SS Pipe Flange

  • UNS N08904 Flange : 1/2″ (15 NB) to 48″ (1200NB)
  • Stainless Steel 1.4539 Slip on Flange : 1/2″ NB – 12″ NB
  • Stainless Steel 904L Blind Flange : 1/2″ NB – 24″ NB

Wholesaler of SS 904L Weld Neck Flange, Well Known Stainless Steel ASTM B649 F904L Threaded Flanges Dealers, Manufacturers of SS 904L Forged Flanges

Ready Stock of ASTM B366 904L Flanges

ASME SB366 904L Weld Neck Flanges Stainless Steel 1.4539 Lap Joint Flanges
904L Stainless Steel Long Weld Neck Flanges ASTM B366 904L Spectacle Blind Flanges
UNS N08904 Spades & Ring Spacers 904L SS Nipoflange
Stainless Steel 904L 5D Weldoflange ASME SB366 904L Flange Outlet
SS B366 904L Flange 904L SS Blind Flange
SS B366 904L Forged Flanges 904L Stainless Steel Plate Flange
SS B366 904L Flanges 904L Stainless Steel BS 10 Flanges
UNS N08904 BS 4504 Flanges Stainless Steel 904L EN 1092-1 Flanges
ASME SB366 904L SORF Flange ASTM B366 904L BLRF Flange
904L SS WNRF Flange SS B366 904L Series a Lap Joint Ring Flange
ASTM B366 904L Slip on Flange Stainless Steel 904L Threaded Flange
UNS N08904 Reducing Flange 904L Stainless Steel Socket Weld Flange
904L Stainless Steel PN16 blind flange UNS N08904 Forged Socket Weld Pipe Flange
ASTM B366 904L Class 300 slip on flange ASME SB366 904L Slip On Weld Flange
Stainless Steel 1.4539 Tongue and Groove Flanges ASTM B366 904L Male and Female Flange
ASME SB366 904L Reducing Flanges 904L SS ASME B16.5 Flanges
SS B366 904L SWRF Flange Stainless Steel 1.4539 Forged blind flange
ASTM B366 904L groove weld neck flange 904L Stainless Steel Socket Weld Hub Flange
Stainless Steel 904L Forged steel slip on flanges 904L SS Race face slip on flange
Stainless Steel 904L Ring Type Joint Flanges UNS N08904 Raised Face Flanges
UNS N08904 threaded lap joint flange 904L SS Slip On Integral flange
Stainless Steel 1.4539 Forged integral puddle flange Stainless Steel 904L table e long weld neck
ASTM B366 904L Class 150 LBS Flange Stainless Steel 1.4539 PN10 Forged Flanges

View Stainless Steel 904L Slip On Flange Price List

Fitting Schedule/Class Flange Size Fitting Connection Type Pipe Fitting Material Max. Pressure Price
Class 150 1/2″ FNPT 904L Stainless Steel 150 psi $27.39 / each
Class 150 1/2″ Socket Weld Forged 904L Stainless Steel 275 psi $31.86 / each
Class 150 1/2″ Welded 904L Stainless Steel 150 psi $12.43 / each
Class 150 3/4″ FNPT 904L Stainless Steel 150 psi $27.39 / each
Class 150 3/4″ Socket Weld Forged 904L Stainless Steel 275 psi $35.88 / each
Class 150 3/4″ Welded 904L Stainless Steel 150 psi $15.34 / each
Importer of 904L SS WNRF Flanges, Buy 904L SS Lapped joint Flanges at best price, Stockist of ASME SB649 Stainless Steel 904L Class 300 Flange

Chemical Compatibility of UNS N08904 Flange

Density Melting Point Tensile Strength Yield Strength (0.2%Offset) Elongation
7.95 g/cm3 1350 ?C (2460 ?F) Psi ? 71000 , MPa ? 490 Psi ? 32000 , MPa ? 220 35 %

Mechanical Characteristics of 904L Stainless Steel Flanges

Grade C Mn Si P S Cr Mo Ni Cu
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

Material Equivalent of ASME SB366 904L Pipe Flange

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
Available stock of Wrought Austenitic Steel 904L Industrial Flanges, Largest SS Grade F904L Flat Flange Suppliers in Mumbai, Manufacturers of Stainless Steel 904L RTJ Flange

Stainless Steel 1.4539 Flange Dimension Chart

Standard Class Diameter Bolt Circle Diameter Number of Bolts Bolt Size Diameter of Bolt Hole
AS4087 PN14 95 67 4 M12 14
AS 2129 Flange Table C 95 67 4 13 14
Table D 95 67 4 13 14
Table E 95 67 4 13 14
Table F 95 67 4 13 14
Table H 114 83 4 16 17
Table J 114 83 4 16 17
ANSI B16.5 ANSI 150 89 60 4 13 16
ANSI 300 95 67 4 13 16
ANSI 600 95 67 4 13 16
ANSI 900 121 83 4 19 22
ANSI 1500 121 83 4 19 22
ISO 7005 (DIN) Flange PN6 80 55 4 M10 11
PN10 95 65 4 M12 14
PN16 95 65 4 M12 14
PN20 90 60.5 4 M14 16
PN25 95 65 4 M12 14
PN40 95 65 4 M12 14