Stainless Steel 904L bars are designated as high-performance alloys that are highly desired for their superior corrosion resistance and service in applications that demand severe conditions. Stainless Steel 904L synthesises 50% Nickel and Chromium along with Molybdenum and Copper content that makes Stainless Steel 904L highly resistant to different corrosive environments such as Sulfuric Acid, Acetic Acid and more. This makes it a preferred material in chemical processing, oil & gas, pharmaceuticals among other professions.
Perhaps one of the most significant properties displayed by Stainless Steel 904L bars is the ability to resist corrosion in both the reducing and oxidising conditions. The steel contains high amounts of nickel all in all and the chloride stress corrosion cracking resistance is high so it can be used in the regions where exposure to water is a problem due to its salty nature. These properties also entail increased corrosion protection of the products manufactured from the 904L, thereby improving on their durability hence cutting on recurrent maintenance expenses.
Stainless Steel 904L is used with added copper to boost up corrosion resistance in strong sulfuric and other reducing acids. This makes it perfect for different equipment and different components used in industries that contain corrosive chemicals. The alloy has also been rated to exhibit good resistance to pitting and/or crevice corrosion, enhancing more the conditions that would favour its use in aggressive service.
Stainless 904L steel bars are considered to have the best mechanical properties due to their high tensile strength and higher resistance to fatigue at high working temperatures. Due to this, those semiconductors are ideal for use in contexts where they are exposed to harsh conditions like heat and pressure. The material has shown good mechanical properties at temperature thus implying that the material is viable for operating in extreme conditions.
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Not only is it a resistant material to corrosion and possesses mechanical properties but it is also easily manipulated into the needs of its consumer and welded. This makes it a very essential material in the production of components which are used in different industries including bars. It has fine particle size which makes it to be easily worked on through machining, stamping and forging since it can be designed and constructed to fit some particular standards.
Stainless Steel 904L bars can otherwise find usage in the building and construction industry, architecture and designing, chemical processing industry, oil and gas industry etc. They are utilised in most heat exchanging units, pressure vessels, pipes and other systems that require high and additional corrosion resistance and high strength.
ASTM A276, ASTM A479, AMS 5513, AMS 5511, AMS 5647
EN, DIN, JIS, ASTM, BS, ASME, AISI
3 ~ 800mm
H8, H9, H10, H11, H12, H13K9, K10, K11, K12 or as per clients requirements
Hex Bar Size:- 2-100mm A/F
Flat Bar Size:- Thickness: 2 -100mm, Width: 10 to 500mm.
Square Bar Size:- 4 to 100mm
Rectangular Bar Size:- 33 x 30mm to 295 x 1066mm, Thickness: 3.0 to 12.0mm.
Hollow Bar Size:- 32mm OD x 16mm ID to 250mm OD x 200mm ID)
Cold (bright) drawn, centreless ground, hot rolled, smooth turned, peeled, slit rolled edge, hot rolled annealed, Rough Turned, Bright, Polish, Grinding, Centreless Ground & Black
Bright, Hot Rolled Pickled, Cold Drawn, Sand Blasting Finished, Polished, Hairline
Round, Rod, T-Bar, Channel Bar, Precision Ground Bar, Flat Bar, Square, Blocks, Round Rod, Half Round Bar, Forged Hex bars, Forged Square Bars etc.
| STANDARD | UNS | WNR. | EN | JIS |
| SS 321 | S32100 | 1.4449 | - | SUS 321 |
| SS 321H | S32103 | 1.4438 | X2CrNiMo18-15-4 | SUS 321H |
| % | Cr | Ni | C | Si | Mn | P | S | N | Ti | Fe |
| 321 | min:17.0 max:19.0 |
min: 9.0 max:12.0 |
max:0.08 | max:0.75 | max:2.0 | max:0.045 | max:0.03 | max:0.10 | min:5*(C+N) max:0.70 |
Balance |
| 321H | min:17.0 max:19.0 |
min: 9.0 max:12.0 |
min:0.04 max:0.10 |
min:18.0 max:20.0 |
max:2.0 | max:0.045 | max:0.03 | max:0.10 | min:5*(C+N) max:0.70 |
Balance |
| Grade | Tensile Strength ksi (min.) |
Yield Strength 0.2% Offset ksi (min.) |
Elongation - % in 50 mm (min.) |
Hardness (Brinell) MAX |
| 321/321H | 75 | 30 | 40 | 217 |
Oil & Gas Industrires
Chemical Industries
Construction Industries
Offshore Pipelines & Pipe Works
Petrochemical Industry
Shipbuilding Industries
Hydraulic Applications
Piping Systems
Refining Industry
Food Processing Industry
Pulp & Paper Industry
Power Plant Industry
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