From stainless steel rolling process and product status points, stainless steel can be divided into cold-rolled and hot rolled two categories, the so-called cold-rolled stainless steel coil and stainless steel hot-rolled coil, while the The stainless steel hot rolled coil can be divided into the hot-rolled coils of black and white hot rolled coil. We usually refer to stainless steel hot-rolled the white material in the stainless steel hot-rolled.
Stainless steel hot-rolled (hot-rolled stainless steel white) for both purposes, one is to be used directly as finished products, mainly used in industrial fields; another as the raw material of cold rolled products, rolled into a stainless steel cold rolled coil annealing, pickling, cold rolling processing procedures.
In general, most of the stainless steel cold-rolled materials used in civilian industry, upstream and downstream enterprises in order to maximize the benefits, it is necessary to control production costs, while the spread between the stainless steel is material and narrowband just stainless steel narrow industry provides a living space.
sum, I believe that an effective complement to the structure of large state-owned steel mill products, stainless steel rolling narrowband plant long-term existence in a certain historical period, and rapid development and growth. In the history of the development of the Chinese stainless steel industry, cold-rolled stainless steel narrow band will play an irreplaceable role and historical status.
1, Quality: Compared with the positive material, the rolling quality of the material there is a certain gap world pie network information , the apparent point of view, its surface dark color than positive material Banban negative differential thickness is not very accurate. However, with the production process and improvement of production technology, the gap is gradually narrowing.
It is understood, Foshan, there are several rolling plant is being expanded to 1219mm or 1000mm rolling production line, is expected to officially put into operation in 2008. This shows that there is still much room for development in China, stainless steel rolling industry.
Sales: rolling enterprise production is order in the form of transactions, the basic is more flexible to market ability, production and sales forms.
from the division point of view of the steel (nickel content and composition) stainless steel can be divided into 200 series, 300 series, 400 series. Among them, the 300 series high nickel products, 400 series Nickel-free products. 304 higher prices, some enterprises the corrosion resistance of stainless steel and certain requirements, which created a 200 series was born. In some application fields, the 200 series of stainless steel products can replace the use of some high-priced steel.
4, effect: used to scrub, the 8k processing, the surface basically no problem world pie network information .
, according to the width of the cold-rolled material points, stainless steel cold rolling is divided into two parts of the positive material and narrowband. Is material is the width over 1000mm cold-rolled stainless steel products, while less than the width of 1000mm cold-rolled stainless steel materials are collectively referred to as the stainless steel narrow.
summarized stainless steel rolling material characteristics of the following areas:
In recent years, stainless steel cold-rolled narrow-band scale of production growing, production processes are becoming increasingly sophisticated, especially the last two or three years, its growth rate is quite amazing. In 2007, Foshan first wide 1219mm rolling production line put into operation, indicating that the current production capability of the domestic stainless steel rolling plant to further uplift, its trend is even comparable with the positive material phase. Market, the cold-rolled stainless steel narrow band quickly develop their own market, and has a large-scale consumer groups.
3, the price: the price of rolling material cheaper than material 800 --- 1000 yuan / T.
2, thickness: the thickness of the rolling material can be customized according to customer demand.
applications: rolling plant operating flexibility with the root user's demand for a free suppress in line with the products produced wide, which can reduce the waste generated in the production of stainless steel products, cost savings and the use of materials.
from several of these characteristics can be seen, positive material, rolling material does have a price advantage, although the quality of the rolling material and the positive material, there is a gap, but With the rolling production process improvement and the improvement of production technology, these gaps are gradually reduced. Moreover, the downstream products businesses, most of its products for civilian use, the quality of stainless steel is not more stringent requirements, which provide ample living space for stainless steel rolling manufacturer. Furthermore, stainless steel rolling material has a more flexible production and sales of customized products according to their needs, which also welcomed by the downstream end-users.
7, profit margins: the profit should be 200 yuan / T-~ 500 yuan / T ranges (for example) to 201 rows on the market, profit margins will be expanded accordingly.