Stainless Steel 904L

904L Stainless Steel Pipes, Uranus B-6 Tubes, Fittings, Flanges, Tube Fittings, Pipe Fittings | Manufacturer, Supplier, Exporter

The Stainless Steel Grade 904 L has low carbon content and is a “non-stabilized” austenitic stainless steel. The stainless steel is alloyed with copper so that it can offer better resistance to the stronger acids, such as sulphuric, phosphoric and acetic acids.  The grade also resists other kinds of stresses like crevice corrosion and stress-corrosion cracking. The steel is non-magnetic and has best-in-class toughness, weldability, and toughness. 904 L also has good amounts of the more expensive metals and ingredients, including Nickel and Molybdenum. We at Ritinox Overseas,   provide a huge range of quality products made from Stainless Steel Grade 904 L. We are known to be the leading suppliers, exporter, manufacturers and stockiest of these products. We are ready to deliver an extensive range of products, manufactured made from this alloy.   We offer Stainless Steel Grade 904 L tubes including straight, coiled and seamless. They are designed as per international standard and high quality of raw materials. 904l stainless steel standards and specifications include 1.4539, UNS N08904,  WNR 1.4539, WERKSTOFF NR. 1.4539,   KS STS 317J5L,BS 904S13, EN X1NiCrMoCu25-20-5,SS2562, SUS 904l and DIN 17440.

Distributor, Stockist and Stockholder of UNS N08904, WNR 1.4539, Alloy 904L | SS 904L Products

DIN 1.4539 Sheet and Plate Ready Stock | SAE 904L Stainless Steel Flanges Manufacturer from India

In what forms is Stainless Steel 904L Available at Ritinox Overseas?

  1. Bar
  2. Sheet
  3. Fittings (elbows, tees, pipe fittings, crosses, pipe nipples, returns, caps, long welding necks, weld-necks, tube fittings, reducers, stub-ends, blinds)
  4. Flanges (Slip on, Blind, Lap Joint, Threaded, Weld Neck, Socket Weld, Orifice)
  5. Plate
  6. Wire
  7. Pipe & Tube (welded & seamless)


ASTM B366, ASTM B625, ASTM B649, ASTM B673, ASTM B674, ASTM B677, ASTM B459
DIN 1.4539



Highlights of Stainless Steel Grade 904 L

Chemical Composition

Grade 904 L stainless steel contains around 0.02 % of Carbon. 2 % of Manganese, 1 % of Silicon, 0.045% of Phosphorus, 19 to 23 % of Chromium, 4 to 5% of Molybdenum, 23 to 28 % of Nickel and 1 to 2% of Copper.

Composition ranges of grade 904L stainless steels

Grade C Mn Si P S Cr Mo Ni Cu
904L min.















Corrosion Resistance

The Stainless Steel Grade 904 L has excellent resistance to the warm sea-water and also resists the chloride-ion attacks.  The steel can prevent stress corrosion cracking because of its high nickel content. Copper is added to the metal so that it can resist the corrosion attacks caused by the acidic environments, including those caused by sulfuric acid. The resistance of the Grade 904 L towards stress corrosion cracking can be increased by treating the alloy with a solution, after cold-working.

Heat Resistance

The Grade 904L stainless steel offers best-in-class oxidation resistance. Thermal treatment can harden the alloy.


All conventional methods can be used for welding the 904 L Grade steel. The grade does not have a requirement of “pre and post” weld-heat treatments.


Grade 904 L has a low content of sulfur and ranks amongst the more pure steels. They can be easily machined by using a number of standard and conventional methods. They can be bent to a smaller size, under the cold conditions. They do not require annealing in many of the applications.


Applications of Stainless Steel Grade 904 L

The unique corrosion resistance, durability and high strength of the steel make it useful for a number of industrial applications. Some of the more typical examples include:

  • Components of the oil-refinery
  • Wiring of the electrostatic precipitators
  • In the sea-water cooling devices
  • In the gas-scrubbing plants
  • In the paper and pulp processing industries
  • In the sulfuric acid, phosphoric acid and acetic acid processing plants
  • Air pollution control equipments
  • Process equipments of the pharmaceutical work flow processes


Stainless Steel 904L Products

Stainless Steel 904L Pipe

904L Steel Pipe

Stainless Steel 904L Tubing

904L Steel Tubes and Tubing

Stainless Steel 904L Flange

904L Stainless Steel Flanges

Stainless Steel 904L Pipe Fittings

904l Steel Pipe Fittings

Stainless Steel 904L Forged Fittings

904L Steel Forging

Stainless Steel 904L Fasteners

904L Steel Fasteners

Stainless Steel 904L Tube Fittings

904L Steel Tube Fittings

Stainless Steel 904L Round Bars

904L Stainless Steel Bar

Stainless Steel 904L Sheet Plate

904L Steel Sheet Plate

Why Choose Us

We have tremendous exposure in the industry segment, and have been servicing a range of industries through our service centers. The headquarters of our company are based at Mumbai. All our products, including the Stainless steel Grade 904 L, pass through the stringiest of quality-control processes. Our world class equipments are used by a number of industries across the globe. We are today a renowned supplier of the high grade stainless steel alloys, and exceed the expectations of our client in terms of reliability and quality.

  • We have tremendous exposure, and have more than 30 years of experience in the industry.
  • We offer options like mill deliveries, and stock option will the least turnaround time.
  • Reach us 24*7 through our customer service centers, which are open 365 days of a year, and can respond effectively and timely to all your queries.
  • Enjoy the most professional service, with honesty and reliability guaranteed
  • All our Stainless Steel Grade 904 L alloys and equipments come with the final-dimensional report and with test certificates.
  • Get the best products from the leading manufactures of the world.
  • A number of delivery options like CIF, CFR and the door-to-door delivery option. We also offer you shipping option, to make your purchase affordable and satisfactory.


Additional Information

We have a 24*7 maintained and effective inventory for all Stainless Steel Grade 904 L alloy equipments and parts. The grade possesses high corrosion resistance, is durable and suits a number of industrial processes. Hence it has a huge demand. The alloy parts offer you good workability at the highest and extreme of temperatures. Improve your workflows and industrial processes with the best of equipments.

  • We also cater to all the customized requirements of our clients. We cut and size all the industrial equipments and make more suitable for any of your workflow. Latest technologies like water-jet, laser jet and plasma technology among others are used to provide you with the most compatible equipment.
  • As we do not have any minimum-order obligation, we can offer you any number of parts or equipments you require. All out supplies meet the efficiency and promptness standards to the fullest and you gain satisfaction by ordering just what you need.
  • Reach us through our phone number, email id or chat with us directly online, to get the Stainless Steel grade 904 L alloy and price chart. Get a modern and professional service, along with a best-price guarantee here.

Mechanical properties of grade 904L stainless steels

Grade Tensile Strength (MPa) min Yield Strength 0.2% Proof (MPa) min Elongation (% in 50mm) min Hardness
Rockwell B (HR B) Brinell (HB)
904L 490 220 36 70-90 typical 150


Grade specifications of grade 904L stainless steels

Grade UNS No Old British Euronorm Swedish SS Japanese JIS
BS En No Name
904L N08904 904S13 1.4539 X1NiCrMoCuN25-20-5 2562


Other Trade Names:

UNS Number N08904
Werkstoff 1.4539
ASTM Specifications B366, B625, B649, B673, B674, B677, B459
Other Common Names SS 904L, Uranus B6, Stainless Steel 904L


904L Stainless Steel Pipe

ASTM and ASME Pipe Specifications
TP 904l ASTM B673 – 904l Stainless Steel Welded Pipe
TP 904L ASME SB677 – 904l Stainless Steel Seamless Pipe TP 904l
TP 904L ASTM A312 – 904l Stainless Steel Seamless/Welded Pipe
ASME SB673 – 904l Stainless Steel Welded Pipe
TP 904L ASME SA312 – 904l Stainless Steel Seamless/Welded Pipe
TP 904L ASTM B677 – 904l Stainless Steel Seamless Pipe

Also known as:
ASTM A312 904l Stainless Steel Pipe, 904l Stainless Steel Pipe, ANSI B 36.19, SS 904L Pipe, ASTM A312, Sch 10, 40, 80, XXS 904l Steel pipe, ASTM B677 UNS N08904 Pipe, 904L Stainless Steel Hydraulic Pipe Exporter, 904L Stainless Steel Square Pipe Manufacturer, 904L Stainless Steel Round Pipe Supplier, 904L Stainless Steel Rectangle Pipe Stockist


904L Stainless Steel Tubing

ASTM and ASME Pipe Specifications
Tube ASTM A213 ASME SA213
TP 904l ASTM B674 – 904l Stainless Steel Welded Tube
TP 904L ASME SB677 – 904l Stainless Steel Seamless Tube TP 904l
TP 904L ASTM A312 – 904l Stainless Steel Seamless/Welded Tube
ASME SB674 – 904l Stainless Steel Welded Tube
TP 904L ASME SA312 – 904l Stainless Steel Seamless/Welded Tube
TP 904L ASTM B677 – 904l Stainless Steel Seamless Tube

Also known as:
SS 904L Tubes Exporter Manufacturer UNS S31703 ANSI B 36.19, Stainless Steel S904L Tubes ASTM A213, 904L Stainless Steel Seamless Tubes, Alloy 400 High-Pressure Tubes Manufacturer, 904L Stainless Steel Instrumentation Tubes Exporter, Alloy 400 Boiler Tubes Supplier, UNS N10276 Compression Tubes Stockist, 904L Stainless Steel Heat Exchanger Tubes Stockholder, Alloy 400 Bright Annealed Tubes Ready Stock, 904L Stainless Steel Cold Drawn Tubes, 904L Stainless Steel Electro Polished Tubes

904L Stainless Steel Flanges

Slip-on Raised Face Flange – SORF
Weld Neck Raised Face Flange – WNRF
Socket Weld Raised Face Flange – SWRF
Blind Raised Face Flange – BLRF
Lap Joint Raised Flange – LJRF
Long Weld Neck Raised Face Flange – LWNRF

Also known as:
Stainless Steel 904L Flanges Supplier Exporter Manufacturer, UNS N08904 ASTM A182 ANSI B16.5, SS 904L Raised Face Flange, SS 904L Flat Face Flange, SS 904L Ring Joint Flange, SS 904L Socket Weld, Lap Joint, Weld Neck, Slip on, Long Weld Neck Flange


904L Stainless Steel Pipe Fittings

SS 904L Return Bend
SS 904L Pipe and End Cap
SS 904L Lap Joint, Long, Short, Stub End
SS 904L Equal, Reducing and Straight Cross
SS 904L Equal, Reducing and Straight Tee
SS 904L Reducing Outlet Crosses
SS 904L Collar
SS 904L Welded Elbows
SS 904L Lateral
SS 904L Short Radius Elbow 45°, 90° and 180°
SS 904L Long Radius Elbow 45°, 90° and 180°
SS 904L Swage, Pipe, Barrel, Reducing Nipple
SS 904L Seamless Elbows
SS 904L Concentric and Eccentric Reducers
SS 904L Long Radius and Piggable Bend
SS 904L Elbow 1D to 5D
SS 904L Reducing Outlet Tees

Also known as:
SS 904L Pipe Fittings Manufacturer Supplier UNS N08904 ASTM A403 ANSI B16.9 and 16.28 , Buttweld Fittings, Stainless Steel 321 Elbow, Tee, Reducer, Cross, Nipple, Cap, Bend, Collar, Insert

904L Stainless Steel Forged Fittings

SS 904L Socket-Weld Fittings
SS 904L Threaded Fittings
SS 904L Outlet Fittings

Also known as:
Stainless Steel 904L Forged Fittings Supplier Exporter Manufacturer, UNS N08904 ASTM A182 ASME B16.11 / BS3799 , SS 904L Forged Fittings Elbow, Tee, Reducer, Cross, Coupling, Nipple, Cap, Bend, Collar, Insert

904L Stainless Steel Fasteners


Stainless Steel 904L Nuts
Insert Lock Nuts, Grades 2, Kep Nuts, Jam Nuts, Coupling Nuts, Acorn Nuts, Auto Lock Nuts, Square Nuts, Sleeve Nuts, Nylon, Wing Nuts, Hex Nuts, 2-H Heavy Hex Nuts, 5 & 8, Heavy Hex Nuts, Slotted Nuts, Miscellaneous Nuts

Stainless Steel 904L Bolt
Square Bolts, Flange Bolts, Elevator Bolts, Structural Bolts, Shoulder Bolts, Heavy Hex Bolts, Tap Bolts, Stove Bolts, Hex Bolts, Toggle Bolts Scraper Blade Bolts, Hanger Bolts Plow Bolts, Draw Bolts

Stainless Steel 904L Washer
Plain Washers, Flat Washers – USS, Fender Washers, A-325 Flat Washers, Square Washers, Flat Washers – SAE, Dome Plain Washers, Split Lock Washers, External Tooth Lock, Countersunk Washers, Bevel Washers, Ogee Washers, Dock Washers, Internal Tooth Lock

Stainless Steel 904L Screw
Decking Screws, Cabinet Installation Screws, Drywall Screws, Metal to Wood Screws, Cement Board Screws, Floorboard Screws, Cap Screws, Dowel Screws, Concrete Screws, Sheet Metal Screws, Self Drilling Screws, Machine Screws, Resistant Screws, Socket Cap Screw

Also known as:
Stainless Steel 904L Fasteners Manufacturer Supplier UNS N08904,  Stainless Steel 904L Screw, Bolt, Nut, Stud, Washer


904L Stainless Steel Tube Fittings



Reducing Union, Male Union Tee, Male Elbow, Hexagon Bushings, Reducing Elbows 90 Deg, Adaptors, Female Elbows 45 Deg, Female Connectors, Female Tee, Union, Round Caps, Male Connectors, Pipe Caps, Male Tee, Hexagon Head Plugs Tapered, Hexagon Bushings, Cross, Hexagon Caps, Square Head Plugs, Reducing Bushing, Female Reducing Tee, Male Elbows 45 Deg, Pipe Plug

Also known as:
SS 904L Tube Fittings Manufacturer Supplier, UNS N08904 , SS 904L Compression Tube Fittings, SS 904L Ferrule Fittings, SS 904L Double Ferrule, SS 904L Connector, Single Ferrule Tube Fittings, Union, Elbow, Tee, Adapter, Ferrule, Cross, Plug


904L Stainless Steel Round Bars

ASTM A276 – 904L Stainless Steel Square Bar
ASTM A276 – 904L Stainless Steel Circle
ASTM A276 – 904L Stainless Steel Hex Bar
ASTM A276 – 904L Stainless Steel Rod
ASTM A276 – 904L Stainless Steel Hex Bar
ASTM A276 – 904L Stainless Steel Round Bar
ASTM A276 – 904L Stainless Steel Flat Bar

Also known as:
904L Stainless Steel Round Bar Manufacturer Supplier, ASTM A276, ASTM A479, Stainless Steel Hex bar, Flat Bar, Circle


904L Stainless Steel Sheet Plate

ASTM A240 904L Stainless Steel Sheet
ASTM A240 904L Stainless Steel Coil
ASTM A240 904L Stainless Steel Plate
ASME SA240 904L Stainless Steel Sheet
ASME SA240 904L Stainless Steel Coil
ASME SA240 904L Stainless Steel Plate

Also known as:
904L Stainless Steel Plate, 904L Stainless Steel Sheet, ASTM A240 UNS N08904, SS 904L Plate, SS 904L Sheet


We have supplied 904L Stainless Steel Products to the following cities:
Singapore, Dubai, New York, Doha, Lahore, Jaipur, Riyadh, Ahmedabad, Istanbul, Cairo, Sharjah, Tehran, Kanpur, Mexico City, Pune, Bangkok, Jamshedpur, Courbevoie, Ahvaz, Rio de Janeiro, Atyrau, Hyderabad, Kuala Lumpur, London, Manama, Houston, Visakhapatnam, Al Khobar, Thiruvananthapuram, Navi Mumbai, Moscow, Bhopal, Dallas, Baroda, Gimhae-si, Busan, Geoje-si, Ho Chi Minh City, Colombo, Edmonton, Bogota, Noida, Muscat, Bengaluru, Ranchi, Port-of-Spain, Montreal, Ankara, Granada, Haryana, Vung Tau, Howrah, Dammam, Toronto, Seoul, Al Jubail, Pimpri-Chinchwad, Nagpur, Los Angeles, Calgary, Milan, Ludhiana, Chennai, Thane, Hong Kong, Sydney, Hanoi, Madrid, Petaling Jaya, Indore, Jakarta, Melbourne, Caracas, Nashik, Chandigarh, Ernakulam, La Victoria, Aberdeen, Faridabad, Kolkata, Karachi, New Delhi, Mumbai, Coimbatore, Rajkot, Brisbane, Secunderabad, Gurgaon, Jeddah, Kuwait City, Lagos, Surat, Ulsan, Perth, Vadodara, Chiyoda, Santiago, Abu Dhabi, Algiers

Ritinox Overseas has exported 904L Stainless Steel Products to the following countries:
Czech Republic, India, Norway, Kenya, Sri Lanka, Poland, Spain, Belgium, Venezuela, Ghana, Taiwan, United Arab Emirates, Germany, Iran, Poland, Hungary, Libya, Russia, Azerbaijan, Mexico, Thailand, Kazakhstan, Gabon, Finland, New Zealand, Bolivia, Ireland, Morocco, Oman, Yemen, South Africa, Argentina, Denmark, Lebanon, Nigeria, Hong Kong, Bangladesh, Lithuania, Jordan, Saudi Arabia, Japan, Pakistan, Italy, Iran, Vietnam, Afghanistan, Brazil, United States, Portugal, South Korea, Ukraine, Ecuador, Trinidad & Tobago,Tunisia, France, Israel, Qatar, Angola, Romania, Egypt, Kuwait, Puerto Rico, Greece, Zimbabwe, Serbia, Estonia, Bulgaria, Australia, Colombia, United Kingdom, Malaysia, Canada, Singapore, Slovakia, Chile, Switzerland, Bhutan, Sweden, Austria, Algeria, Macau, Croatia, China, Turkey, Namibia, Bahrain, Philippines, Nigeria, Costa Rica, Mongolia, Nepal, Tibet, Iraq, Mexico, Netherlands, Chile, Gambia, Belarus, Peru, Indonesia