What are the precautions during the cutting of Q345NQR2 steel specification

With the development of China's Q345NQR2 steel specification market economy, the company vigorously implements the strategy of industrialization, internationalization and diversification, promotes group operation, intensive development and lean management, and builds the company into a company with scientific development concept, continuous innovation vitality, excellent corporate culture and strong sense of social responsibility through rich series of Q345NQR2 steel specification products and project portfolio and complete operation network And international first-class competitiveness of modern enterprises.

The company specializes in producing high-strength low-temperature resistant low alloy plates Q345C, Q345D, Q345E, SM400, Q345NQR2 steel specification, SM490, S355J2 + N;bridge plates Q345qC / qD / qE, Q370qE high-strength structural plates, etc. Z-direction performance (Z15, Z25, Z35). Above materials have high yield strength, high tensile strength, Brinell hardness, and Rockwell hardness; and low temperature resistance, they also can be maintained at high temperatures of -60 ℃.

When using Q345NQR2 steel specification, low-alloy high-strength steel, it is desirable to take advantage of its high strength and use a thinner section, not only for saving weight but also for the economy as much as possible. However, the corrosion factor must be fully considered. The thinner the steel section, the more attention should be paid to corrosion protection. Some low-alloy high-strength steels have good atmospheric corrosion resistance, which can not only improve the effect of anti-corrosion coatings, but in some cases, take appropriate precautions and can even be used without being coated in the atmosphere.

The effect of alloy elements of Q345NQR2 steel specification, Q345B alloy steel plate on tempering transformation: improving the tempering stability. The alloying elements delay the decomposition of martensite and the transformation of residual austenite during the tempering process. Increasing the recrystallization temperature of ferrite makes it difficult for carbides to aggregate and grow, so the resistance of steel to temper softening is improved, that is, the tempering stability of steel is improved.

JIS g3101:2004 ss540 structural steel angle contains 0.30% carbon and 1.60% manganese, which greatly improves the strength of steel. Compared with Q345NQR2 steel specification SS400 and ss490, ss540 has higher strength with yield strength of 400MPa and tensile strength of 540Mpa. High strength makes it popular in applications that require strength but weight is a problem.

Welcome customers to visit our company, we specialize in steel products, adhere to the Q345NQR2 steel specification quality first standard, and do not forget to provide customers with the best quality products and services. Our product quality office is the best, and our Q345NQR2 steel specification price is also very advantageous. Welcome to purchase steel products from our company.

We should focus on the main problems to be solved and pay attention to efficiency. After receiving the user's quality objection report data, the possible causes, responsible units, compensation amount, etc. of the problem shall be judged based on experience. To have a clear service plan, to be clear about what your main problem is, what technical support is needed, these should be prepared.