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The material of Stainless steel

Each product because of the different purposes, the processing technology and the quality request of raw material is also different.
The material of Stainless steel
Material: (1) DDQ (deep drawing quality) is used for deep drawing (rushed) use of material, also is what we call soft materials, high elongation is the main characteristic of this material (≧ 53%), low hardness (≦ 170%), internal grain level between 7.0 ~ 8.0, deep drawing performance.Many production vacuum flask, pot type enterprise, its product processing than (BLANKING diameter SIZE/products) are generally higher, their processing than 3.0, 1.96, 2.13, 1.98, respectively.SUS304DDQ material is mainly used for the processing is required to be higher than the product, processing more than 2.0, of course, the products are generally required to pass through several times to complete the drawing.If raw material extension has not, in the deep drawing products machining product easy to produce the phenomenon of cracks, wear, affect the product quality, of course also increases the cost of the manufacturer;
(2) the general material: mainly used for materials, except for DDQ USES the characteristics of this material is relatively low elongation (≧ 45%), and relatively high hardness (≦ 180), the internal grain size grade between 8.0 ~ 9.0, compared with DDQ material, its deep drawing performance is relatively a bit poor, it is mainly used to do not need to stretch to get the goods, as a kind of spoon, spoon and fork cutlery, electrical appliances, such as steel pipe used.But it has an advantage compared with the DDQ material, BQ is relatively good, this is mainly because of its hardness is a little higher.