Stainless Steel 904L Bars are an exceptionally corrosion resistant alloy known for its exceptional corrosion resistance and durability. Composed with high levels of chromium, nickel and molybdenum - providing superb resistance in acidic as well as corrosive environments - their composition allows these bars to withstand even extreme environments without dissolving.
Stainless Steel 904L Bars exhibit moderate machinability characteristics. While they can be machined using standard methods, their high alloy content may pose challenges during machining operations requiring specific tooling and parameters in order to reach desired results.
Stainless Steel 904L Bars when it comes to corrosion resistance in harsh environments like those containing sulfuric acid or chloride solutions containing aggressive materials like sulfur. Their resistance makes them suitable for applications where corrosion control is of primary concern such as chemical processing plants, marine environments and pharmaceutical equipment.
Weldability of Stainless Steel 904L Bars is another key characteristic. Despite their high alloy content, these bars demonstrate excellent weldability when using suitable welding techniques and filler materials. Preheating and post weld heat treatment help preserve corrosion resistance as well as mechanical properties of the material in welded areas. Stainless Steel 904L Bars find applications across several industries due to their unique combination of properties. Chemical processing equipment that utilizes them often relies on corrosion- and chemical resistance for prolonged service life - these bars make excellent additions.
Stainless Steel 904L bars have long been utilized in the fabrication of heat exchangers, boilers, and pressure vessels due to their superior strength, corrosion resistance and ability to tolerate elevated temperatures and pressures. Other applications for these bars include oil and gas processing equipment; pulp & paper industry machinery as well as architectural components placed into harsh environments.
Apple Steels, a notable manufacturer and supplier of stainless steel 904L bars in Mumbai, India. These bars are widely utilized across various industries for their durability, reliability, and ability to withstand harsh environments.
Melting and Casting
Steel and alloying metals are loaded into an electric arc furnace. Once in the furnace, the metal is heated to a specific temperature above its melting point, usually in excess of 2800°F.
Forming
Most cast steel is formed by hot rolling—the slab, bloom, or billet is heated and passed through large rollers, stretching out the steel into a longer, thinner form.
Heat treatment
Heat treatment strengthens rolled stainless steel by recrystallizing the deformed microstructure. Most stainless steel is heat treated by annealing.
Descaling
A rolled piece of stainless steel acquires a layer of oxidized “mill scale,” which needs to be washed away to restore a shiny surface finish.
Cutting or Machining
Stainless steel is cut to a specified shape and size. The stainless steel can be sheared with circular knives, sawed with high-speed blades, or blanked with punches.
| SS Bar Wire Standard | ASTM A276 / A479, ASME SA276 / SA479 |
| Stainless Steel Bar Dimensions | EN, DIN, JIS, ASTM, BS, ASME, AISI |
| Stainless Steel Round bar size | Diameter: 3-~800mm |
| Stainless Steel Hex Bar size | 2-100mm A/F |
| SS Flat bar size | Thickness: 2 -100mm |
| Width: 10 to 500mm | |
| Stainless Steel Square bar size | 4 to 100mm |
| SS Angle bar size | 3mm*20mm*20mm~12mm*100mm*100mm |
| Hollow Bar | 32mm OD x 16mm ID to 250mm OD x 200mm ID) |
| Stainless Steel Rectangular Size | 33 x 30mm to 295 x 1066mm |
| SS Bars Finish | Cold (bright) drawn, centreless ground, hot rolled, smooth turned, peeled, slit rolled edge, hot rolled annealed, Rough Turned, Bright, Polish, Grinding, Centreless Ground & Black |
| SS Bar Tolerance | H8, H9, H10, H11, H12, H13K9, K10, K11, K12 or as per clients’ requirements |
| Tempers | Tempers range from dead soft annealed to ultra spring temper |
| Rolled Stainless Steel Flat Bars Condition | Hardened & tempered, annealed |
| Cold Rolled Bar Technique | Stainless Steel Hot Rolled, Cold Drawn, Cold Rolled, Forged Round Bar, Rod |
| Stainless Steel Rounds Bar Form | Round, Rod, T-Bar, Channel Bar, Precision Ground Bar, Flat Bar, Square, Blocks, Round Rod, Rings, Hollow, Triangle, Rectangle, Hex (A/F), Threaded, Half Round Bar, Profiles, Billet, Ingot, I/H Bar, Forging etc. |
| STANDARD | UNS | WNR. | JIS | BS | KS | AFNOR | EN |
|---|---|---|---|---|---|---|---|
| SS 904L | N08904 | 1.4539 | SUS 904L | 904S13 | STS 317J5L | Z2 NCDU 25-20 | X1NiCrMoCu25-20-5 |
| C | Cr | Cu | Mn | Mo | Ni | P | S |
|---|---|---|---|---|---|---|---|
| Max | Max | Max | Max | ||||
| 0.02 | 19.0-23.0 | 2.0 | 4.0-5.0 | 23.0-28.0 | 0.045 | 0.035 | 1.0 |
| 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 |
Electrical Industry
Automotive Industry
Construction Industry
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Pharmaceutical Industry
Petroleum Industry
Petrochemical Industry
Milk & Dairy Industry
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