904l Stainless Steel Supplier| 904l Steel | AISI 904l | UNS N08904

904l Stainless Steel Supplier

904l Stainless Steel | UNS N08904 | EN 1.4539 | AISI 904l | 904l Steel | SS2562 | SUS 904l | 904L Stainless Steel Suppliers

904l Stainless Steel is a commercial grade of authentic stainless steel which has a very low carbon content and is non-stabilized. It is a high nickel and copper alloy and is blended with copper to increase its resistance to acids like sulphuric acid which is also a good reducing agent. This is usually resistant in both mild as well as aggressive condition. It has a high percentage of nickel and molybdenum.  It is also resistant to other things like crevice and stress corrosion. It is tough, weldable and is not magnetic but gives superb formability. 904L Steel , UNS NO8904 are the usual trade names for 904L .

904l stainless steel standards and specifications include 1.4539, WNR 1.4539, UNS N08904,  WERKSTOFF NR. 1.4539,  BS 904S13,  KS STS 317J5L, EN X1NiCrMoCu25-20-5, SUS 904l, SS2562 and DIN 17440. 

Why 904L Steel ? 

904l Steel is a lower alternative when it comes to costing and has a much lower corrosion resistance. It is highly resistant to crevice corrosion and pitting and the 2205 grade has greater mechanical strength in comparison.The following are some basic properties of aisi 904l –

1.4539, 904l Stainless Steel Corrosion Resistance

Stainless Steel 904l has a great resistance to chloride attack and warm seawater and is less resistant to nitric acid. Thus,  904 L is free of molybdenum is not as resistant to nitric acid and the steel grade has to be treated with the solution after a cold working so as to obtain maximum  stress corrosion cracking resistance under special environments.

1.4539, 904l Stainless Steel Heat Resistance

This grade of UNS N8904 gives the best oxidation resistance and has the structural stability which usually collapses at high temperatures like 400°C and above. Usually, these can be solution heat treated at 1090 to 1175°C which is usually followed by rapid cooling. One can subject these to thermal treatment for hardening these grades.

904l Stainless Steel Welding

AISI 904l can be welded by conventional methods. It does not need any post or pre-heat treatment. It is subjected to a lot of heat and cracking in confined welding treatment. Usually, 904L Steel electrodes, as well as rods, are used.

904l Steel Fabrication

904L stainless steel is machined in the usual methods and these are highly pure steel with a very low content of sulfur. They are thus bendable to any small radius under extremely cold conditions. No annealing is needed and when the fabrication is done annealing under severe stress conditions can be done.

Steel 904L Applications

Usually, 904l Steel is used in the following :

  • It is usually a regular feature in Oil refinery components
  • It is applied as wiring in electrostatic precipitators
  • It is also used in Seawater cooling devices
  • It is a part of Pulp and paper processing industries
  • It is mainly used in Gas scrubbing plants
  • It is also a regular feature in Acetic, phosphoric and sulphuric acid processing plants

904L Stainless Steel Price

Contact Us at export@siddhagirimetals.com for best price on 904L Stainless Steel

Stainless Steel 904l Forms

Stainless Steel 904l Chemical Composition :

Element:Content (%)
Cr 19.0 -23.0
Ni23.0 -28.0
Mo4.0 -5.0

904l Stainless Steel Mechanical Properties :

Yield Strength
0.2% Offset
psi (min.)31, 000
Ultimate Tensile
psi (min.)71, 000
in 2 in.
% (min.)36
Hardness(max.)70-90 Rockwell B

904l Steel Physical Properties :

Density7.95 g/cm^3
Specific Heat0.11 BTU/lb-°F (32 – 212°F)
Modulus of Elasticity28.0 x 10^6 psi
Thermal Conductivity 200°F (100°C)6.8 BTU/Ft-hr°F
Melting Range
2372 – 2534°F
Electrical Resistivity33.5 Microhm-in at 68°C

904L Steel Applications:

  • Oil refinery components
  • wiring in electrostatic precipitators
  • Seawater cooling devices
  • Pulp and paper processing industries
  • Gas scrubbing plants

 Equivalent Grades and Other Names :

  • Inox 904L
  • SS 904L
  • UNS 08904
  • SUS 904l
  • 2rk65 Stainless Steel
  • SUS 890L
  • BS 904S13
  • KS STS 317S56
  • Alloy 904L
  • EN 1.4539

Siddhagiri Metals and Tubes, 904l Alloy Steel Suppliers Manufacturer:

Siddhagiri Metals and Tubes has been a leading distributor of Stainless Steel and Alloy Steel Products since long. We have been manufacturing and supplying the best quality products and are experts in sourcing the basic requirements of the clients for nickel based alloys. We aim at providing best service and have gained our customer’s confidence due to our expertise and propulsion in these alloys. We handle our customer’s requirement as supreme need and extend our sincere dedication in figuring out their needs. We maintain the highest standards and our quality is endorsed worldwide through our impeccable service. Every unit is usually tested and personally inspected by us thus avoiding any sort of discrepancy. We lay emphasis on providing a very environment-friendly output and do not produce any harm to nature.  We also export to countries abroad and have a hundred percent positive result in this respect.


We provide the fastest delivery of the best quality Alloy 904L and have a very low rejection record. Our efforts are mainly in providing the customer what he wants and we thus have a huge database of satisfied and contented customers.

If one is to wonder why exactly they would come to Siddhagiri Metals and Tubes then we can only emphasize on our specialization in this grade of 904L Steel (DIN 17440) for example which has the highest demand in the nickel based alloy category. We are known for our excellent products which enable welding for fabrication. Our products are known for their formidability and toughness too. In fact, 904L Steel supplied by Siddhagiri Metals and Tubes are known for the best kind of supply of such products across the world. We offer the best kind of packing and we are suited not only for sea but also air transport. Our Quality testing and Control is extremely stringent and perfect. Our pricing is competitive and we also offer consultancy services for the alternative material.


When it comes to a deal or a negotiation, obviously it cannot be with zero error. There are some problems that customers typically face. These are

  • Non-availability of a product
  • Packaging Defects
  • Late Deliveries
  • Material Inconsistent with standards
  • Dubious Practices
  • Product Performance
  • Commission may result in high pricing of Goods


There are many advantages of dealing with us –

  • We provide high-quality goods in an industry where there is a wide supply of low-quality goods.
  • Siddhagiri Metals and Tubes is a renowned 904L Stainless Steel Supplier.
  • We have a very good track record of an organized customer purchase cycle.
  • We have a record of 0% rejection rate in the past so many years.
  • Our team is committed and our hard work is our forte with the organized effort to provide ultimate customer satisfaction.
  • We offer a World class buying experience to our customers
  • Our delivery is fast, quick and on time.
  • We have a Digital Mill test report according to the requirement and we conduct a third party inspection.
  • We have an impeccable after sales support as well as services.
  • Brand Marketing along with Heat Traceability is provided to all our products.


We had a client in Australia where the requirement was for  pipe fittings and flanges for an urgent job. Usually, Siddhagiri Metals and Tubes believes that the client’s problem is its own and makes sure that the customer always is comfortable. Thus when this situation came up all that we did was to ensure that the client got his due. We had a good stock of his requirement however he needed some more for another project in the offing. Siddhagiri Metals and Tubes has good contacts in Europe which incidentally is a great stockist for our requirements. It was as easy as that. We just had to procure the remaining products from Europe where we have good contacts and then move it on to our client. This is a typical situation where we handle the client’s problem through our outsourcing abilities and interactive contacts. Not only did we provide the customer the requirement on time but also eased his tension by giving him a straight discount which paved the foundation for our long lasting relation. This is the way we work and this is what is our forte. This is a typical case where we could show our mettle by of our strife towards competitive pricing and intelligent marketing.

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