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904L stainless steel sheet is divided into: hot rolled stainless steel sheet, cold rolled stainless steel sheet, and fine rolled stainless steel sheet. Super austenitic stainless steel (904L stainless steel sheet) is a highly alloyed austenitic stainless steel with very low carbon content, good corrosion resistance in dilute sulfuric acid, designed for corrosion conditions in harsh environments. With high chromium content and sufficient nickel content, the addition of copper makes it has a strong acid resistance, especially for chloride interstitial corrosion and stress corrosion cracking with high resistance, not easy to appear corrosion spots and cracks, pitting resistance is slightly better than other steel grades, with good workability and weldability, can be used for pressure vessels.
Welding performance
As with general stainless steel, 90 4 L can be welded using a variety of welding methods. The most commonly used welding method for manual arc welding or shielded gas welding, welding rod or wire metal based on the composition of the base material and higher purity, molybdenum content requirements than the base material. Preheating is generally not required before welding, but in cold outdoor work, in order to avoid condensation of water vapor, the joint area or the adjacent area can be uniformly heated. Note that the local temperature should not exceed 10 0 ℃, so as not to lead to carbon agglomeration, causing intergranular corrosion. Welding should be used when a small linear energy, continuous and fast welding rate. After welding generally do not need heat treatment, if heat treatment, must be heated to 110 0 ~ 1150 ℃ after rapid cooling.
machinability
90 4 L machining characteristics similar to other austenitic stainless steel, the process has a tendency to stick to the tool and work hardening. Must use positive front angle carbide tools, sulfide and chlorinated oil as cutting coolant, equipment and process should be to reduce the premise of machining hardening. Cutting process should be avoided with slow cutting speed and tool feed.
Production process
As a general-purpose corrosion-resistant material 904L stainless steel sheet, cold-rolled high-performance products can be used in a number of fields, including food industry equipment, kitchen utensils and the electronics industry. Each field of use is different, the performance requirements of cold-rolled stainless steel 904L stainless steel sheet is also different, especially when the thickness of the stainless steel strip is small, the search for its comprehensive cold processing performance is extremely important. By analyzing the impact of the rolling and annealing process on its properties and organization, and studying the influence of the production process parameters on its organization and properties, it can provide experimental data for optimizing production and improving performance on site.
Grade | Ni | Mn | P | C | S | Si | Cr | Mo | Cu | |
904L | min. | 23 | – | – | – | – | – | 19 | 4 | 1 |
max. | 28 | 2 | 0.045 | 0.2 | 0.035 | 1 | 23 | 5 | 2 |
Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness |
Rockwell B (HR B) | ||||
904L | ≥520 | ≥215 | ≥20 | 160 |
Product Name | Stainless steel sheet / plate |
Technique | Cold Rolled / Hot Rolled |
Grade(ASTM UNS) | 201 202 301 304 304L 321 316 316L 317L 347H 309S 310S 904L S32205 2507 254SMOS 32760 253MA N08926 etc. |
Grade (EN) | 1.4301, 1.4307, 1.4541, 1.4401, 1.4404 ,1.4571, 1.4438, 1.4539, 1.4547, 1.4529, 1.4562, 1.4410, 1.4878, 1.4845, 1.4828, 1.4876, 2.4858, 2.4819 |
Thickness | 0.1-300mm or as required |
Width | 1000, 1219, 1500, 2000, 2500, 3000mm or as required |
Length | 1000, 1500, 2438, 3000, 5800, 6000, 9000, 12000mm or as required |
Standard | ASTM JIS AISI GB DIN EN |
Surface Finished | BA, 2B, NO.1, NO.4, 4K, HL, 8K, Checkered |
Certification | CE, ISO, SGS, BV |
Edge | Mill Edge / Slit Edge |
Quality | SGS Inspection |
Main market | Asia/ Europe/ South America/ Africa/ North Americal |
Delivery time | Within 5-10 Working Days |
Port of Loading | Shanghai/ Tianjin/ Qingdao Port, China |
Price Terms | CIF/ CFR/ FOB/ EX-WORK |
Export Packing | Waterproof Paper, Steel Strip Packed and other Standard Export Seaworthy Package, or customized package |
Supply Ability | 5000 Tons per Month |
Payment Terms | T/T L/C and Western Union etc. |
Application | Building material,decorative,elevator,kitchenware etc. |
Petroleum and petrochemical equipment, such as reactors in petrochemical equipment, etc.
* Sulfuric acid storage and transportation equipment, such as heat exchangers, etc.
* Flue gas desulfurization equipment of power plants, the main parts used are: tower of absorption tower, flue, stall door plate, inner parts, spraying system, etc. * Scrubber and fan in organic acid treatment system.
* Seawater treatment device, seawater heat exchanger, paper industry equipment, sulfuric acid, nitric acid equipment, acid making, pharmaceutical industry and other chemical equipment,
Pressure vessels, food equipment.
*Pharmaceutical plants: centrifuges, reactors, etc.
*Plant food: soy sauce tanks, spirits, salt tanks, equipment and dressings.
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Speak to a Steel ExpertBehind the growth and success ofuaima Steel is years of hard work and dedication in the steel industry and meeting customers' needs on time. Advanced technology, standard products, certified quality standards and the best customer service make l is years of hard work and dedication in the steel industry and meeting customers' needs on time. Advanced technology, standard products, certified quality standards and the best customer service make Kuaima Steel a true leader in zhe global marker
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