所属分类：常见问题 发布时间：2021-04-19 11:00:28 来源：http://www.lcnmb500.com 浏览量：
Materials in the process of stretching, sales HARDOX wear-resistant plate, imported from Sweden wear-resistant plate safety, environmental protection, economy! From the beginning to the fracture of the large stress value. It indicates the ability of steel to fracture. And tensile strength corresponding to compressive strength, bending strength, etc. Domestic spot steel price composite index closed at the end of the week, hardox500 wear-resistant plate rose in the week.
Support the price. Comparison of properties between P steel and Cr steel after quenching and tempering steel grade and cross section size of heat treatment steel ℃ water quenching ℃ tempering FCR steel ℃ oil quenching.
2. HARDOX wear plate.
3. However, about% of the increase in production still comes from key large and medium-sized iron and steel enterprises. Um martensitic transformation (low temperature transformation) tungsten
But the overall increase is still apparent. After the price of ten thousand spring steel plate rose, the market transaction was weak, but the market inventory was still at a low level. Some steel mills raised the ex factory price and other factors, which made the market confidence acceptable. The grade and brand of low hardenability quenched and tempered steel: this kind of steel; the critical diameter of oil quenching is mm ~ mnm360m, which is used to manufacture important parts of the same size.
HRB: hardness obtained by using kg load and mm diameter hardened steel ball; hardox500 wear resistant plate is used for materials with lower hardness (such as annealed steel, cast iron, etc.). D. when HB > or the sample is too small, Brinell hardness test can not be used instead of Rockwell hardness measurement. It uses a diamond cone or a steel ball with a top angle of 90 ° or a diameter of mm to press into the surface of the material to be measured under a fixed load, and the hardness of the material is calculated from the depth of the indentation.
According to the hardness of test materials, it is expressed in different scales: HRA: the hardness obtained by kg load and diamond cone indenter, which is used for materials with extremely high hardness (such as cemented carbide, etc.).
The difference between ml and QB: steel belongs to carbon steel. In the national standard GB-2000, the material distinction between QB and QB is mainly in the carbon content of steel. The carbon content of the material is between. The impact test is not carried out for QB, while the impact test at room temperature is carried out for QB, and the V-notch of hardox500 wear-resistant plate is carried out. Relatively speaking, the mechanical properties of QB steel are far better than that of QB steel. Hypereutectoid steel: AC + (~ ℃)