Stainless Steel 904L Flanges Manufacturer

Global Steel India is a leading supplier of stainless steel 904L flanges.

Stainless Steel 904L flange is made from austenitic alloy steel that is utilized in applications requiring moderate to high corrosion resistance. They can be employed in a variety of process settings. Copper is added to its alloy to increase resistance to harsh acids, such as sulphuric acid.  When compared to 316L and 317L stainless steel grades, the magnetic characteristics of stainless steel 904L flanges are stronger.

Table Of content

It has strong acid resistance, as well as resistance to crevice corrosion and stress corrosion cracking in acidic conditions. They’re also noted for their ability to withstand pitting in chloride solutions. This is due to the presence of high amounts of nickel in its alloy. Stainless steel 904L flanges remain non-magnetic at all times. They are easy to weld and can be welded by using all conventional methods. Stainless steel 904L flanges do not require pre-heat and post-weld heat treatments. Grade 904L stainless steel flanges can be subjected to hot cracking in constrained weldment. Stainless steel 904L flanges are high in purity and have low sulphur content. According to AS 1554.6, Grade 904L electrodes and rods are used for welding grade 904L stainless steel.

Stainless steel 904L Flanges are used in several industries and applications like – Oil refineries, seawater cooling devices, gas scrubbing plants, pulp and paper processing industries, and Acetic/phosphoric/sulphuric acid processing plants, etc.

The quality of the products we offer is of topmost importance. All products at Global Steel go through strict quality tests before dispatching like the Hardness test, Flaring test, Chemical Analysis – Spectro Analysis Pitting resistance test, Intergranular Corrosion Test, Positive Material Identification – PMI Testing, Micro and Macro test, etc.

What makes SS 904L flanges so unique?

SS 904L flanges are unique due to their high levels of chromium, nickel, and molybdenum, which provide excellent resistance to corrosion in a wide range of environments, including those containing sulfuric acid and other aggressive chemicals. Additionally, SS 904L flanges have high strength, good formability, and excellent weldability, making them well-suited for various industrial applications, such as chemical and petrochemical processing, oil and gas refining, and pulp and paper manufacturing.

How strong is SS 904L flanges?

SS 904L flanges have high strength and excellent corrosion resistance. The strength of the flanges depends on the specific manufacturing process and heat treatment used, as well as the dimensions and design of the flange itself. Generally, SS 904L has a tensile strength of around 490 MPa and a yield strength of around 220 MPa. These properties make SS 904L flanges well-suited for use in a range of demanding industrial applications.

Do SS 904L flanges rust?

SS 904L flanges are highly resistant to rust and corrosion in many environments. The high levels of chromium, nickel, and molybdenum in the alloy provide excellent resistance to rust and corrosion in harsh and aggressive environments, including those containing sulfuric acid and other corrosive chemicals. However, if the flanges are exposed to highly corrosive or oxidizing conditions for an extended time, they may eventually show signs of corrosion or rust.

Specification of SS 904L Flanges

Standards ASTM A182 / ASME SA182
Dimensions ANSI/ASME B16.5, B16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc.
Standard ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc
Size 1/2″ (15 NB) to 48″ (1200NB)
Class / Pressure 150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc.
Flange Face Type Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ)
Stainless Steel 904L Flanges

Equivalent Grades

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

Manufacturing Standards

ASME/ANSI B16.5 Blind Flange, High Hub Blind Flange, Slip on Flange, Welding Neck Flange, Socket Weld Flange, Ring Type Joint Flange, Lap Joint Flange, Threaded Flange
PRESSURE CLASS 150, 300, 400, 600, 900, 1500, 2500
ASME/ANSI B16.47 Blind Flange [Series A & B],Welding Neck Flange
PRESSURE CLASS 75, 150, 300, 400, 600, 900
ASME/ANSI B16.36 Orifice Flange
PRESSURE CLASS 300, 400, 600, 900, 1500, 2500
BS 4504 SEC 3.1 Plate Flange, Loose Plate Flange, Loose Plate With Weld Neck Flange, Blank Flange, Welding Neck Flange, Hubbed Slip on Flange, Hubbed Threaded Flange, Lapped Pipe End Flange,
PRESSURE CLASS PN 2.5 TO PN 40
BS 4504[PART 1] Plate Flange, Loose Plate With Weld On Plate Collar, Blank Flange, Welding Neck Flange, Hubbed Slip-On Hubbed Threaded,
PRESSURE CLASS PN 2.5 TO PN 400
BS 1560 BOSS Plate Flange, Loose Plate With Weld On Plate Collar, Blank Flange, Welding Neck Flange, Hubbed Slip-On Hubbed Threaded,
PRESSURE CLASS 150, 300, 400, 600, 900, 1500, 2500
BS10 Welding Neck Flange, Plate Slip-On Flange, Screwed Boss Flange, Slip-On Boss Flange, Blind Flange
TABLE D, E, F, H
DIN FLANGES DIN 2527, 2566, 2573, 2576, 2641,2642, 2655, 2656, 2627, 2628, 2629, 2631, 2632, 2633, 2634, 2635, 2636, 2637,2638, 2673
PRESSURE CLASS PN 6 TO PN 100

Different Types

Slip On Flanges

SS 904L Slip On Flanges

Blind Flanges

SS 904L Blind Flanges

Socket Weld Flanges

SS 904L Socket Weld Flanges

Weld Neck Flange

SS 904L Weld Neck Flanges

Reducing Flanges

SS 904L Reducing Flanges

Orifice Flanges

SS 904L Orifice Flanges

Contact us to get a quick quote for your requirement.

We offer These Stainless Steel 904L Flanges as per DIN, ASTM, ASME, BS, EN, JIS or ANSI Standard.

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Available Stock

  • ASME B16.47 SS 904L Spades Ring Spacers Flanges
  • Grade 904L Stainless Steel Flanges
  • 904L SS Flanges
  • UNS N08904 Stainless Steel Lap Joint Flanges
  • Stainless Steel 904L Plate Flange
  • Suppliers of 904L Stainless Steel Flanges
  • Type 904L SS Industrial Forged Flanges
  • SS 904L Groove Flanges
  • UNS N08904 Male & Female Flanges
  • 904L Stainless Steel Nipoflange
  • 904L SS Pipe Flange
  • Stainless Steel 904L Tongue Flanges
  • ASTM A182 F904L Stainless Steel Flanges
  • Stainless Steel 904L PN 10 Flange
  • INOX 904L Flanges
  • SS 904L Lapped Joint Flanges
  • Stainless Steel 904L BS Standard Table E
  • 904L SS 150 LBS Threaded Flanges
  • SS 904L DIN Flanges
  • SS 904L British Standard Table D Pipe Flanges
  • Stainless Steel 904L Long Welding Neck Flange
  • 904L SS Weldo Flanges
  • SS 904L Flat Face Flanges
  • SS 904L Spectacle Blind Flanges
  • Austenitic Stainless Steel 904L Flanges
  • SS 1.4539 1500 LBS Flanges
  • Stainless Steel 904L Nipo Flanges
  • Stainless Steel 904L Screwed Flanges
  • Stainless Steel 904L Spades Ring Spacers Flanges

Weight Chart

15mm (1/2″) Stainless Steel 904L Flanges Weight Chart

Pipe Normal Diam.
O.D. Flange 
Thk. Of Flange Min 
Diam.
of
Hub 
Diameter of Raised Face 
Length Hub.Y
Thread Length
Diam. 
of Bolt
Circle
Diam. 
of Bolt
Holes
Number
of Bolts
Diam. of
Bolts
(inch)
KG
LB
inch
dn
O
C
X
G
Y
T
BC
BH
BN
BD
 
 
1/2″
15
89.00
11.20
30.20
35.10
15.70
15.70
60.50
15.80
4
1/2″
0.4
0.9
3/4″
20
98.50
12.70
38.10
42.90
15.70
15.70
69.90
15.80
4
1/2″
0.7
1.5
1″
25
108.00
14.20
49.30
50.80
17.50
17.50
79.30
15.80
4
1/2″
0.8
1.8
1-1/4″
32
117.50
15.70
58.70
63.50
20.60
20.60
88.90
15.80
4
1/2″
1.2
2.6
1-1/2″
40
127.00
17.50
65.00
73.20
22.40
22.40
98.60
15.80
4
1/2″
1.5
3.3
2″
50
152.50
19.10
77.70
91.90
25.40
25.40
120.70
19.10
4
5/8″
2.3
5.1
2-1/2″
65
178.00
22.40
90.40
104.60
28.40
28.40
139.70
19.10
4
5/8″
3.7
8.1
3″
80
190.50
23.90
108.00
127.00
30.20
30.20
152.40
19.10
4
5/8″
4.1
9
3-1/2″
90
216.00
23.90
122.20
139.70
31.80
31.80
177.80
19.10
8
5/8″
5.1
11.2
4″
100
228.50
23.90
134.90
157.20
33.30
33.30
190.50
19.10
8
5/8″
5.9
13
5″
125
254.00
23.90
163.60
185.70
36.60
36.60
215.90
22.40
8
3/4″
7
15.4
6″
150
279.50
25.40
192.00
215.90
39.60
39.60
241.30
22.40
8
3/4″
8.4
18.5
8″
200
343.00
28.40
246.10
269.70
44.50
44.50
298.50
22.40
8
3/4″
13
28.6
10″
250
406.50
30.20
304.80
323.90
49.30
49.30
362.00
25.40
12
7/8″
18
39.5
12″
300
482.50
31.80
365.30
381.00
55.60
55.60
431.80
25.40
12
7/8″
29
64
14″
350
533.50
35.10
400.10
412.80
57.20
57.20
476.30
28.50
12
1″
39
86
16″
400
597.00
36.60
457.20
469.90
63.50
63.50
539.80
28.50
16
1″
47
103
18″
450
635.00
39.60
505.00
533.40
68.30
68.30
577.90
31.80
16
1 1/8″
57
126
20″
500
698.50
42.90
558.80
584.20
73.20
73.20
635.00
31.80
20
1 1/8″
76
167
24″
600
813.00
47.80
663.40
692.20
82.60
82.60
749.30
35.10
20
1 1/4″
97
214

Dimensions

AMERICAN SOCIETY OF MECHANICAL ENGINEERS (ASME)
  • ASME B1.20.1, Pipe Threads, General Purpose
  • ASME B16.1, Cast Iron Flanges and Flanged Fittings Classes 25, 125 and 250
  • ASME B16.5, Pipe Flanges and Flanged Fittings NPS 1/2 Through NPS 24
  • ASME B16.11, Forged Fittings, Socket Welding and Threaded
  • ASME B16.25, Buttwelding Ends
  • ASME B16.36, Orifice Flanges
  • ASME B16.47, Large Diameter Steel Flanges NPS 26 Through NPS 60
  • ASME B31.1, Power Piping
  • ASME B31.3, Process Piping
  • ASME B46.1, Surface Texture (Surface Roughness, Waviness, and Lay)

Pressure Rating

ANSI/ASME B16.34 PRESSURE RATING CHART
Temperature °F 150# 300# 400# 600# 900# 1500# 2500#
-20 to 100 275 720 960 1440 2160 3600 6000
200 230 600 800 1200 1800 3000 5000
300 205 540 720 1080 1620 2700 4500
400 190 495 660 995 1490 2485 4140
500 170 465 620 930 1395 2330 3880
600 140 435 580 875 1310 2185 3640
650 125 430 575 860 1290 2150 3580
700 110 425 565 850 1275 2125 3540
750 95 415 555 830 1245 2075 3460
800 80 405 540 805 1210 2015 3360
850 65 395 530 790 1190 1980 3300
900 50 390 520 780 1165 1945 3240
950 35 380 510 765 1145 1910 3180
1000 20 320 430 640 965 1605 2675
1050 20 310 410 615 925 1545 2570
1100 20 255 345 515 770 1285 2145
1150 20 200 265 400 595 995 1655
1200 20 155 205 310 465 770 1285
1250 20 115 150 225 340 565 945
1300 20 85 115 170 255 430 715
1350 20 60 80 125 185 310 515
1400 20 50 65 95 145 240 400
1450 15 35 45 70 105 170 285
1500 10 25 35 55 80 135 230

Chemical Structure

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

Mechanical Properties

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 %

We Serve Application Industry

Application Industry

ANSI / ASME 16.5, 16.48, 16.47 Flanges applications are as diverse as the industries they serve driven primarily by the aerospace, railway, construction and automotive industries with petrochemical, nuclear, medical, Oil & Gas, Chemical, Pharmaceutical, Food & Beverage, Nuclear, Thermal Power plants, Paper and Pulp, marine and mining, etc.

Oil & Gas Industry

Petrochemical Industry

Power Generation Industry

Chemical Industry

We Export Stainless Steel 904L Flanges Across the Globe

Japan, Ireland, Nigeria, Israel, Trinidad & Tobago, Greece, Hong Kong, Sri Lanka, Turkey, Costa Rica, Chile, Norway, Philippines, Tibet, Venezuela, Bulgaria, Serbia, Saudi Arabia, Malaysia, Croatia, Singapore, South Korea, New Zealand, Brazil, Yemen, Ecuador, Kenya, Kazakhstan, Peru, Angola, United Kingdom, Lahore, Iraq, Gambia, Netherlands, Egypt, Azerbaijan, Belgium, France, Bahrain, Germany, Morocco, Algiera, Ghana, Namibia, Bolivia, Russia, Switzerland, Mongolia, South Africa, Puerto Rico, Qatar, Colombia, China, Pakistan, Lithuania, Poland, Macau, Bhutan, Ukraine, Slovakia, Mexico, columbia, Czech Republic, Australia, Gabon, Bangladesh, Belarus, Thailand, Taiwan, Austria, Nepal, Hungary, Sweden, Tunisia, Iran, Jordan, Denmark, Zimbabwe, Vietnam, Portugal, Kuwait, Romania, Lebanon, Italy, Algeria, Argentina, India, Estonia, Indonesia, Libya, Finland, Afghanistan, Oman, Spain, United Arab Emirates, United States, Canada.

Domestic Supply Stainless Steel 904L Flanges

Ahmedabad, Chennai, Bengaluru, Jamshedpur, Faridabad, Kanpur, Chandigarh, Surat, Ludhiana, Jaipur, Gurgaon, Pimpri-Chinchwad, Hyderabad, Bhopal, Thiruvananthapuram, New Delhi, Nagpur, Haryana, Nashik, mumbai, Pune, Howrah, Ernakulam , Thane, Kolkata, Rajkot, Noida, Navi Mumbai, Indore, Visakhapatnam, Ranchi, Secunderabad.

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Global Steelindia

Global Steel is a significant manufacturer and exporter of all ferrous and non-ferrous metals. As a pioneer and leader in the industry, Global Steel is at the forefront of technology and research.

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