AISI 904L STAINLESS STEEL ROUND BAR & RODS | PUXIN METAL
Grade: SUS 890L;ASTM 904L;X1NiCrMoCu25-20-5;1.4539;SS 2562
Standards:AISI,ASTM,DIN,EN,JIS,SUS
Round Bars（OD）: 4mm ~ 500mm
Length: 2M to 6 M, Custom Size & Shape
Surface: Frosted/Polished/Mirror/Brushed
Certification : ISO,SGS,BV,CE
MOQ:5 TON ,Free Samples
Payment Term T/T;L/C;WesternUnion;Paypal
Fast delivery: delivery cycle is 15-30 days.
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PRODUCT DESCRIPTION
AISI 904L STAINLESS STEEL ROUDND BAR & ROD | PUXIN METAL
Round Bars（OD）: 4mm ~ 500mm
Length: 2M to 6 M, Custom Size & Shape
Grade：SUS 890L;ASTM 904L;X1NiCrMoCu25-20-5;1.4539;SS 2562;AISI 904L
Surface: Frosted/Polished/Mirror/Brushed
Color :Bright
Service: Support OEM & ODM
MOQ:5 TON
Stock: 3000 Ton
Samples: Free
Trade Term: FOB,CFR,CIF
Payment Term T/T;L/C;WesternUnion;Paypal
Fast delivery: delivery cycle is 15-30 days.
Application:Reactors, distillation equipment, nuclear reactors, pressure vessels, ship components.
”CHOOSE PUXIN METAL AND LOOK FORWARD TO HEARING FROM YOU！“
As a high-end corrosion-resistant alloy material, 904L stainless steel bar, with its domestic grade 00Cr20Ni25Mo4.5Cu, fully reflects the exquisiteness of the composition design. This series of products covers a variety of forms such as round bars, square bars and bright bars with precision surface processing, which can be flexibly selected according to the needs of industrial scenarios. The material is based on a strictly controlled low carbon content (C≤0.02%-0.03%), and through the synergistic ratio of high chromium (about 20%), sufficient nickel (about 25%) and innovative copper elements (about 1.5%), an excellent corrosion resistance matrix is constructed. It performs well in resisting strong corrosive media such as concentrated sulfuric acid and phosphoric acid, and has a breakthrough protection ability against pitting, crevice corrosion and stress corrosion cracking caused by chloride environments, and shows long-term stability in harsh environments such as chemical equipment, marine engineering, and pharmaceutical machinery. Bright bars with mirror-like surface finish are more suitable for precision instrument manufacturing. Their uniform austenite structure ensures that the processing process has both strength and ductility, providing reliable material solutions for high-end equipment manufacturing.
904L stainless steel bar has excellent cold and hot processing properties, similar to other commonly used Cr-Ni austenitic steels. During its hot forging process, the maximum heating temperature can reach 1180℃, the minimum stop forging temperature is not less than 900℃, and hot forming can be carried out in the range of 1000℃ to 1150℃. The heat treatment process of this steel is heating at 1100℃ to 1150℃ and then rapid cooling. 904L steel can be welded by conventional welding processes, but the most suitable welding methods are manual arc welding and tungsten inert gas welding. If manual arc welding is used to weld plates with a thickness of no more than 6 mm, the electrode diameter should not exceed 2.5 mm; for plates with a thickness greater than 6 mm, the electrode diameter should be less than 3.2 mm. If heat treatment is required after welding, it can be heated at 1075℃ to 1125℃ and then rapidly cooled for treatment. When using tungsten inert gas welding, the filler metal can use electrodes of the same material, and the weld needs to be pickled and passivated after welding.
In terms of corrosion resistance, 904L steel is particularly suitable for dealing with sulfuric acid corrosion, and can withstand acetic acid corrosion at any concentration and temperature under normal pressure. In addition, its corrosion resistance in formic acid, phosphoric acid and their mixed acids is also excellent. According to the T method test in GB1223-75, when the carbon content in the steel is 0.038%, 904L steel needs to be sensitized for more than 1 hour to avoid intergranular corrosion. Therefore, for parts with a welding thickness of no more than 30mm, as long as the welding process is proper, there is no risk of intergranular corrosion. The results of pitting potential measurement and pitting test show that 904L steel is superior to low-grade Cr-Ni austenitic steels such as 00Cr18Ni10 and 00Cr18Ni14Mo2 in terms of corrosion resistance. Since the Ni content in 904L steel is as high as 25%, its stress corrosion resistance is more excellent than that of general Cr-Ni austenitic steel. Especially in water media containing chloride ions, when 18-8 and 18-12-Mo stainless steels suffer from stress corrosion cracking, 904L steel can often effectively prevent such accidents from happening.
PRODUCT FEATURES
PRODUCT CHARACTERISTICS OF 904L STAINLESS STEEL BAR
| Element | Content Range |
|---|---|
| C | ≤ 0.02% |
| Si | ≤ 1.00% |
| Mn | ≤ 2.00% |
| P | ≤ 0.04% |
| S | ≤ 0.03% |
| Cr | 19.0~23.0% |
| Ni | 23%~28% |
| Mo | 4.0~5.0% |
| Yield Strength (Mpa) | ≥490 |
| Tensile strength (Mpa) | ≥177 |
| Elongation (%) | ≥ 35 |
| Hardness | HB ≤187 HRB ≤ 90 HV ≤ 200 |
SURFACE TREATMENT
SURFACE
APPLICATION
REACTORS, HEAT EXCHANGERS, STORAGE TANKS, PIPING SYSTEMS.
DESALINATION PUMPS AND VALVES, MARINE PROPELLER SHAFTS, CONDENSER COMPONENTS.
FLUE GAS DESULFURIZATION (FGD) SYSTEM SPRAY PIPES, ABSORPTION TOWER INTERNALS.
NUCLEAR FUEL PROCESSING EQUIPMENT, GEOTHERMAL POWER GENERATION PIPELINES.
FERMENTATION TANKS, CONVEYING SCREWS, HIGH-PURITY MEDIA PIPELINES.
HIGH-STRENGTH BOLTS, CORROSION-RESISTANT GEARS, SHAFT PARTS.
LUXURY WATCH CASES, MEDICAL IMPLANTS (LIMITED APPLICATIONS).
