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Material properties and application of 904L stainless steel


904L stainless steel


904L stainless steel material is a super austenitic stainless steel material. The carbon content of 904L stainless steel is very low, but the content of nickel and molybdenum is very high. It is specially designed for environments with harsh corrosion conditions (such as any concentration under normal pressure, Acetic acid, formic acid, and acetic acid mixed acid have good corrosion resistance at any temperature) low-carbon high-nickel-molybdenum super austenitic stainless steel.



904L stainless steel coil material, surface: 2B smooth surface, No.1 industrial surface, BA (6k) mirror surface, 8K mirror surface, brushed surface, frosted surface Softness (soft material, hard material): deep drawing soft material; hard material 1/4H, 1/2H, 3/4H, H, EH, SH; HV 30 - 650 degrees. It has high chromium content and sufficient nickel content. The addition of copper makes it have strong acid resistance, especially high resistance to chloride crevice corrosion and stress corrosion cracking, and it is extremely resistant to corrosion spots and cracks. The pitting resistance is slightly better than other steel types, and it has good machinability and weldability. Non-magnetic in solid solution state.


Chemical composition % of 904L C≤0.03, Si≤1.00, Mn≤2.00, P≤0.035, S≤0.03, Ni:23.0-25.0, Cr:18.0-20.0, Mo:3.0-4.0, Cu:4.0-5.0. 904L The minimum value of the mechanical properties of the alloy at room temperature: alloy and state: 926, tensile strength (Rm N/mm2): 490, yield strength (RP0.2N/mm2): 216, elongation A5%: 35.


904L stainless steel coil

Application of 904L stainless steel coil


904L stainless steel coil is widely used in the chemical industry, construction, bridge, aerospace, mechanical hardware, medical treatment, decoration, medical fitness products, furniture, tableware manufacturing, automobile manufacturing, and other industries.




Petroleum and petrochemical equipment, such as reactors in petrochemical equipment. Sulfuric acid storage and transportation equipment, such as heat exchangers, etc. The flue gas desulfurization device in a power plant is mainly used in the following parts: the tower body of the absorption tower, the flue, the door panel, the internal parts, the spray system, etc. Scrubbers and fans in organic acid handling systems. Seawater treatment devices, seawater heat exchangers, paper industry equipment, sulfuric acid/nitric acid equipment, acid/pharmaceutical industry, chemical equipment, pressure vessels, and food equipment. Pharmaceutical factory: centrifuges, reactors, etc. Plant food: soy sauce jars, cooking wine, salt shakers, equipment, and dressings. In addition, SHANDONG OK STEEL CO., LTD has another important point to tell you. That is, 904L stainless steel is the best for diluting sulfuric acid strong corrosion medium.


904L stainless steel coil suppliers


SHANDONG OK STEEL CO., LTD is mainly engaged in 304L, 316L, 317L, 409L, 436L, 904L, 301L, and other low-carbon stainless steel plates, stainless steel coil, stainless steel strip, stainless steel flat steel, and has more than 1,000 tons of materials in stock, with complete specifications and sources adequate. At the same time, various stainless steel coil processing services can be provided according to customer requirements: flattening, slitting and drawing, mirror surface, oil grinding, polishing, embossing, bending, leveling, slitting, cutting, rolling, punching, etc. Want to know more exciting content, come and pay attention to SHANDONG OK STEEL CO., LTD.

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