Pm Industries

SS 904l Flange

The grade 904L stainless steel alloy, an austenitic high-alloy, is used to make stainless steel 904L flanges. This alloy is very resistant to corrosion, especially in harsh settings with corrosive compounds like sulfuric acid and chlorides. These flanges have certain qualities that make them appropriate for a range of tough applications:

Manufacturers ensure quality, dimensional precision, and compliance with industry standards by producing Stainless Steel 904L flanges in accordance with standards like ASTM A182 and ASME B16.5/B16.47.

Stainless Steel 904L flanges are perfect for applications where other grades of stainless steel would not hold up because of their remarkable corrosion resistance in harsh environments. Because of their longevity and resistance to a broad variety of corrosive chemicals, they are appropriate for essential applications in industries where corrosion is a major problem. It is imperative to adhere to industry standards in the proper selection and installation of these flanges to guarantee their best performance in particular corrosive situations.

In the chemical and petrochemical industries, 904L flanges are widely used for equipment that handles extremely corrosive liquids like phosphoric acid, sulfuric acid, and chloride solutions.

Because they don’t corrode in brine or seawater, they are used in both onshore and offshore oil and gas installations. Because stainless steel 904L is resistant to sulfuric acid, which is used in the papermaking process, it is used in equipment used in the pulp and paper sector.

Excellent corrosion resistance is offered by stainless steel 904L in a variety of corrosive conditions, such as those involving sulfuric acid, phosphoric acid, chlorides, and other strong chemicals. It is resistant to corrosion from crevices and pitting.

  • High Alloy Content: The high concentrations of chromium, nickel, and molybdenum in 904L stainless steel help to protect it against corrosion, especially in extreme conditions.
  • High Strength: It maintains its mechanical qualities over a broad temperature range and demonstrates good strength and toughness.
  • Weldability: Stainless Steel 904L has a larger carbon content than other austenitic stainless steels, yet it nevertheless has good weldability and is easily welded using conventional techniques.

Specification- SS 904l Flange

Standards ANSI/ASME B16.5, B16.48, ANSI Flanges, GOST Flanges, DIN Flanges, EN-1092, B16.47 Series A & B, ASME Flanges, EN Flanges, AWWA Flanges, BS Flanges.
JIS Standard 5K, 10 K, 16 K 20 K, 30 K, 40 K, 63 K
DIN FLANGES DIN 2527, 2627, 2631, 2656, 2576, 2673, 2629, 2628, 2566, 2641, 2637, 2655, 2634, 2636, 2632, 2633, 2638, 2642, 2573, 2635.
Pressure Rating Class 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS
Types Threaded, Plate, Screwed, Forged.
Supporting material Gasket, Ring Joint, Flange Bolts
Size range 1/2" (15 NB) to 48" (1200NB) DN10~DN5000
Production technique Forged, machined and Heat treated
Available Flange Type Weld Neck Flanges, RTJ Flanges, Slip On Flanges, Spectacle Blind Flanges, Flanges Gaskets, Square Flanges, Standard Insert Flanges, High Hub Blinds Flanges, Flat Flanges, forged flanges, Weldo / Nipo Flanges, Jacket Insert Flanges, Tongue groove Flanges, Blind Flanges, Socket Weld Flanges, Large diameter Flanges, Long Weld Neck Flanges, Spacer Blinds, SWRF Flanges, SORF Flanges, Angle Face Rings Flanges, Spades Ring Spacers Flanges, WNRF Flanges, Screwed Flanges, Insert Flanges, flanges bolts, cf flange, Lap Joint Flanges, ASME B16.36 Orifice Flanges, Plate Flange, Expander Flanges, Ring Type Joint Flanges, Loose Flanges, Reducing Flanges, puddle flange, Threaded Flanges, blank flange, vacuum flange.
Connect Type/ Flange Face Type Ring Type Joint (RTJ), Flat Face (FF), Tongue & Groove, Small Male-Female (SMF), Lap-Joint Face (LJF), Raised Face (RF), Large Male-Female (LMF), Small Tongue.
Custom design As per your drawing
Test Direct-reading Spectrograph, X-ray detector, UItrasonic flaw detector, Magnetic particle detector, Hydrostatic testing machine.
Origin Indian / USA / Korean / West Europe / Japan
Pressure Class PN 6 TO PN 100
Thickness Normal Pipe Size ≤ 18
Bore Diameter Normal Pipe ≤ 10
High Temperature Above 200°C (400°F) For Class 150 Or Above 400°C (750°F)
Low Temperature Above -29 Degree C (−20°F)
Coating/Surface Treatment: Zinc Plated, Anti-rust Paint, Oil Black Paint, Yellow Transparent, Cold and Hot Dip Galvanized.
European/African/Russian Standard Flanges Available
Gaskets Types Full Face, Metallic Ring, Flat Ring Gasket
Marking Standard
Name of Manufacturer
Schedule
Type of Flange Facing
Pressure Class
Nominal Pipe Size, etc
Test Certificates
EN 10204/3.1B, NACE MR0103, NACE MR0175
Raw Materials Certificate
100% Radiography Test Report
Third Party Inspection Report, etc

Flange Type Available

Slip on

Weldo

Weld Neck

Tongue Groove

Spectacle Blind

Spade

Threaded Screwed

Square

Ring Type Joint

Ring Spacer

SocketWeld

Reducing

Raised Face

Puddle

Plate

Orifice

Nippo

Male Female

Long Weld Neck

Lap Joint

SS Grade F904l Equivalent

STANDARDWERKSTOFF NR.UNSJISKSAFNORENBS
SS 904L1.4539N08904SUS 904LSTS 317J5Z2 NCDU 25-20X1NiCrMoCu25-20-5904S13

Chemical Properties- Astm B649 F904L

GradeCarbonManganeseSiliconPhosphorusSulfurChromiumMolybdenumNickelNitrogen
SS 904L0.08 max2 max0.75 max0.045 max0.030 max18 – 208 – 11

Uns N08904 Flange Mechanical Properties

Yield Strength
0.2% Offset
Ultimate Tensile
Strength
Elongation
in 2 in.
Hardness
psi (min.)(MPa)psi (min.)(MPa)% (min.)(max.)
31,00022071,0004903670-90 Rockwell B

Stainless Steel 904l Flanges Dimensions Class-150

Nominal Pipe Size
NPS
(inches)
Class 150
Diameter of
Flange
(inches)
No.
of
Bolts
Diameter of
Bolts
(inches)
Diameter of
Bolt Holes
(inches)
Bolt
Circle
(inches)
1/43-3/841/20.622-1/4
1/23-1/241/20.622-3/8
3/43-7/841/20.622-3/4
14-1/441/20.623-1/8
1-1/44-5/841/20.623-1/2
1-1/2541/20.623-7/8
2645/80.754-3/4
2-1/2745/80.755-1/2
37-1/245/80.756
3-1/28-1/285/80.757
4985/80.757-1/2
51083/40.888-1/2
61183/40.889-1/2
813-1/283/40.8811-3/4
1016127/8114-1/4
1219127/8117
14211211.1218-3/4
1623-1/21611.1221-1/4
1825161-1/81.2522-3/4
2027-1/2201-1/81.2525
2432201-1/41.3829-1/2

ASME/ANSI B16.5 SS 904L Flanges Dimensions Class-300

Nominal Pipe Size
NPS
(inches)
Class 300
Diameter of
Flange
(inches)
No.
of
Bolts
Diameter of
Bolts
(inches)
Diameter of
Bolt Holes
(inches)
Bolt
Circle
(inches)
1/43-3/841/20.622-1/4
1/23-3/441/20.622-5/8
3/44-5/845/80.753-1/4
14-7/845/80.753-1/2
1-1/45-1/445/80.753-7/8
1-1/26-1/843/40.884-1/2
26-1/285/80.755
2-1/27-1/283/40.885-7/8
38-1/483/40.886-5/8
3-1/2983/40.887-1/4
41083/40.887-7/8
51183/40.889-1/4
612-1/2123/40.8810-5/8
815127/8113
1017-1/21611.1215-1/4
1220-1/2161-1/81.2517-3/4
1423201-1/81.2520-1/4
1625-1/2201-1/41.3822-1/2
1828241-1/41.3824-3/4
2030-1/2241-1/41.3827
2436241-1/21.6232

ANSI B16.5 904L Flanges Dimensions Class-900

Nominal Pipe Size
NPS
(inches)
Class 900
Diameter of
Flange
(inches)
No.
of
Bolts
Diameter of
Bolts
(inches)
Diameter of
Bolt Holes
(inches)
Bolt
Circle
(inches)
1/24-3/443/40.883-1/4
3/45-1/843/40.883-1/2
15-7/847/814
1-1/46-1/447/814-3/8
1-1/27411.124-7/8
28-1/287/816-1/2
2-1/29-5/8811.127-1/2
39-1/287/817-1/2
411-1/281-1/81.259-1/4
513-3/481-1/41.3811
615121-1/81.2512-1/2
818-1/2121-3/81.515-1/2
1021-1/2161-3/81.518-1/2
1224201-3/81.521
1425-1/4201-1/21.6222
1627-3/4201-5/81.7524-1/2
1831201-7/8227
2033-3/42022.1229-1/2
2441202-1/22.6235-1/2

904l Flanges Pressure rating

Temperature °FClass 150 LBClass 300 LBClass 400 LBClass 600 LBClass 900 LBClass 1500 LBClass 2500 LB
-20 to 1002757209601440216036006000
2002306008001200180030005000
400190495660995149024854140
500170465620930139523303880
600140435580875131021853640
650125430575860129021503580
700110425565850127521253540
3002055407201080162027004500
75095415555830124520753460
80080405540805121020153360
85065395530790119019803300
90050390520780116519453240
10002032043064096516052675
10502031041061592515452570
11002025534551577012852145
1150202002654005959951655
1200201552053104657701285
145015354570105170285
125020115150225340565945
13002085115170255430715
1350206080125185310515
140020506595145240400
95035380510765114519103180
15001025355580135230

SS Grade F904l Flange Weight Chart

Pipe Normal DiameterOuter Diameter FlangeThickness Of Flange MinDiameter
of
Hub
Diameter of Raised FaceLength Hub.YThread LengthDiameter
of Bolt
Circle
Diameter
of Bolt
Holes
Number
of Bolts
Diameter of
Bolts
(inch)
KGLB
inchdnOCXGYTBCBHBNBD
1/2"1589.0011.2030.2035.1015.7015.7060.5015.8041/2"0.40.9
3/4"2098.5012.7038.1042.9015.7015.7069.9015.8041/2"0.71.5
1-1/4"32117.5015.7058.7063.5020.6020.6088.9015.8041/2"1.22.6
1-1/2"40127.0017.5065.0073.2022.4022.4098.6015.8041/2"1.53.3
2"50152.5019.1077.7091.9025.4025.40120.7019.1045/8"2.35.1
2-1/2"65178.0022.4090.40104.6028.4028.40139.7019.1045/8"3.78.1
1"25108.0014.2049.3050.8017.5017.5079.3015.8041/2"0.81.8
3"80190.5023.90108.00127.0030.2030.20152.4019.1045/8"4.19
3-1/2"90216.0023.90122.20139.7031.8031.80177.8019.1085/8"5.111.2
4"100228.5023.90134.90157.2033.3033.30190.5019.1085/8"5.913
5"125254.0023.90163.60185.7036.6036.60215.9022.4083/4"715.4
8"200343.0028.40246.10269.7044.5044.50298.5022.4083/4"1328.6
10"250406.5030.20304.80323.9049.3049.30362.0025.40127/8"1839.5
12"300482.5031.80365.30381.0055.6055.60431.8025.40127/8"2964
14"350533.5035.10400.10412.8057.2057.20476.3028.50121"3986
6"150279.5025.40192.00215.9039.6039.60241.3022.4083/4"8.418.5
16"400597.0036.60457.20469.9063.5063.50539.8028.50161"47103
18"450635.0039.60505.00533.4068.3068.30577.9031.80161 1/8"57126
20"500698.5042.90558.80584.2073.2073.20635.0031.80201 1/8"76167
24"600813.0047.80663.40692.2082.6082.60749.3035.10201 1/4"97214

Application

  • Food & Beverage
  • Paper Industry
  • Pharmaceutical
  • Hospital Equipment
  • Textiles
  • Dairy
  • Aircraft
  • Chemicals
  • Others Parts in Machinery

Testing

  • Hydrostatic Test
  • Macro Test
  • Ultra Sonic Test (UT)
  • Micro Test
  • Hardness Test
  • Radiography Test
  • Pitting Resistance Test
  • PMI Testing
  • Mechanical Testing
  • X-ray detector

Packing

  • Wooden Boxes
  • Shrink-Wrapped
  • Carton Boxes
  • Wooden Crates
  • Wooden Pallets
Flange Packaging

Stainless Steel Flanges

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