steel nm500 coil thickness, thick plate stock

The company sold 50,000 tons of hot rolled plates to Southeast Asian countries, which will help the construction of relevant steel NM500 coil thickness key projects in countries along the “Belt and Road”. In response to the local environment and construction needs in Southeast Asia, the company has made a number of improvements to its export products, with excellent cost performance such as low emissions and low fuel consumption. It is an ideal compaction equipment for the steel NM500 coil thickness construction of high-grade highways, railways, airports, ports and industrial sites. Loved by customers from countries along the “Belt and Road”.

The microstructure of the quenched and tempered alloy steel, steel NM500 coil thickness after conventional heat treatment is tempered sorbite. For parts with wear-resistant surface (such as gears and spindles), induction heating surface quenching and low-temperature tempering are carried out, and the surface structure is tempered martensite. The surface hardness can reach 55HRC-58HRC. After quenching and tempering, the yield strength of quenched and tempered alloy steel is about 800MPa, the impact toughness is 800kJ / m2, and the core hardness is 22HRC - 25HRC. If the cross-section size is large but not quenched, the properties will be significantly reduced.

Q/BQB 310-2009 cold formed hot rolled automotive structural steel Material: QSTE460TMChemical composition (melting analysis)%C: ≤0.12, Si: ≤0.35, Mn: ≤1.60, P: ≤0.03, S: ≤0.025, Ti: ≤0.22, Nb: ≤0.09, Al: ≥0.01Mechanical properties of QSTE460TM steelYield strength MPa: ≥460Tensile strength MPa: 520-670Elongation: ≥19

On November 1st, our company organized some of company staff to visit Zhengzhou Children Welfare Institute, and gave children cookies and toys, as well as concerns to the Children. With the development of the society, disabled children gets increasing concerns and help from all walks of life. Fortunately, Chinese Government gives high concern to the handicapped children and has built Children Welfare Institutes all over the country to guarantee their lives.