SS400 hot rolled sheet

-

How to solve the problems of SS400 hot rolled sheet surface


At present, one of the problems of further improving the quality of SS400 hot rolled sheet is the surface quality problem, especially when the SS400 hot rolled sheet is directly applied to the outer surfaces of structural parts. For example, the outer overlay of a car has put forward more stringent requirements for SS400 hot rolled sheet surface quality and quantity.

The surface pitting defect of SS400 hot rolled sheet is caused by the surface defect of work roll. The surface defect of SS400 hot rolled sheet caused by rolling iron sheet is related to the chemical composition of the SS400 hot rolled sheet.

Adding a small amount of Si into Al-killed steel can obviously reduce the surface defects of SS400 hot rolled sheet. When the content of Si exceeds 0.05%, the 2FeO SiO2 layer formed on the SS400 hot rolled sheet surface plays an important role in preventing the oxidation of SS400 hot rolled sheet.

Katalor is a well known steel company in China, we have our own factory to product high quality SS400 hot rolled sheet. So we welcome to you visit our mill. If you have any need in SS400 hot rolled sheet, please contact us freely, we will reply you at first time. Of course we can offer the more information about SS400 hot rolled sheet for free.

           katalorsteels@gmail.com

评论

发表评论

此博客中的热门博文

ASTM A517 steel belongs to the boiler steel plate

-
ASTM A517 steel (also called ASME SA517 standard) is a kind of high-strength quenched and tempered alloy steel plates intended for use in fusion welded boilers and other pressure vessels. The steel shall be killed and shall conform to the fine austenitic grain size requirement. Under this specification, the plate thickness determines the grade selection and the mechanical properties.   A517 grade A steel pates 2.5" in thickness and under, will have minimum Yield Strength of 100 ksi.  A517 grade b steel plates over 2.5" in thickness will have a minimum Yield strength of 90 ksi.  Typical applications include unfired vessels and tanks. ASTM A517 Grade A plates are Pressure Vessel Plate and supplied in the as-rolled condition. The ASTM A517 Gr. A plate may be ordered normalized or stress relieved, or both. ASTM A517 Grade H are Pressure Vessel Plate and supplied in the as-rolled condition. The ASTM A517 Gr. H Plate may be ordered normalized or stress relieved, or both. AS
阅读全文

S235JR steel plate

-
图片
Katalor has more useful S235JR steel plate information S235JR steel plate  is a kind steel grade and it is mainly used for steel structural buildings, frames and other steel body under the standard of EN 10025-2.  S235JR steel plate  is for low temperature impacting test under zero centigree. Katalor steel Industrial specialized in S235JR steel plate  in china many decades years. The composition characteristics of S235JR steel plate  are low carbon, less than 0.20%, low alloy and total alloy element less than 3%. Low carbon content in S235JR steel plate  steel is to meet the technical requirements of plasticity, toughness, weldability and cold deformation of S235JR steel plate  used for engineering structural parts. The S235JR steel plate  has Mn as the main additive and conforms to the resource characteristics of our country. Mn not only has a significant strengthening effect on ferrite , but also reduces the cold and brittle temperature of the S235JR steel plate , and
阅读全文

EN 10025-2 S235J0 channel steel

-
图片
How to storage the EN 10025-2 S235J0 channel steel correctly Generally, the storage of Katalor EN 10025-2 S235J0 channel steel will be placed in the storehouse. Although this environment is favorable to its storage, it should be noted that EN 10025-2 S235J0 channel steel quality will also be affected by its placing method. Therefore, when placing EN 10025-2 S235J0 channel steel, there are several things to pay attention to: First, the same type of EN 10025-2 S235J0 channel steel is stacked separately according to the order of storage, so as to facilitate the implementation of the principle of advanced first issue. Moreover, the principle of stacking requires that under the conditions of stable palletizing and ensuring safety, the stacking should be carried out according to varieties and specifications. Different materials of EN 10025-2 S235J0 channel steel should be palletized separately to prevent confusion and mutual corrosion. Second, the stacking he
阅读全文