Stainless steel - making materials

Due to the different uses of each product, the processing of raw materials and quality requirements are also different. Generally different stainless steel products, its raw material requirements also vary thickness tolerances, like second-class tableware and mug etc., thickness tolerances generally higher, -3 to 5%, and a thickness tolerance tableware General requirements - 5% -10% steel such requests, hotels with a freezer timber thickness tolerance requirements -8%, dealers thickness tolerance requirements generally between 4% to 6%. At the same time export products will lead to different customers in different raw materials thickness tolerances required. Generally higher export products customer thickness tolerances, while domestic enterprises thickness tolerance requirements are relatively low (mostly because of cost considerations), some customers even ask -15%.micro alloy steel grades

①DDQ (deep drawing quality) material: refers to a material for deep drawing (red) uses, is it said, the soft material, the main characteristics of this material is higher elongation (≧ 53%), compared with the hardness low (≦ 170%), internal grain grading between 7.0 to 8.0, excellent deep drawability. Many production thermos pot class enterprises, processing their products generally are higher than (BLANKING SIZE / products in diameter), which processed more than 3.0,1.96,2.13,1.98 respectively. SUS304DDQ timber is mainly used for processing these requests higher than the product, of course, working ratio of more than 2.0 products are generally subject to a few times a stretch to complete. If the extension of terms of raw materials can not reach it, deep drawing products in processing products easy to crack, pull wear phenomenon, affecting the rate of qualified products, of course, will increase the cost of manufacturers;nickel chromium steel properties

② general material: mainly used for external purposes in addition to DDQ materials, the characteristics of this material is relatively low elongation (≧ 45%), and relatively high hardness (≦ 180HB), internal grain grade of 8.0 to 9.0 rooms, compared with DDQ timber, it is relatively deep drawability somewhat less, it is mainly used in the products can be obtained without thrust, like a class tableware spoon, spoons, forks, electrical appliances, steel uses. But it is compared with DDQ material has an advantage BQ is relatively good, mainly due to the slightly higher because of its hardness.Buy Stainless Steel Sheet Online