Cutting treatment and heat treatment of q345r equivalent astm material

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Normalizing process of S355J2 steel plate: normalize the S355J2 steel plate in the bottom furnace, normalizing temperature is 880-910℃, holding time is 1.8-2.2min/mm, that is to get the required S355J2 + N steel plate. 355j2 + N steel plate is mainly used in large machinery manufacturing, equipment base, large welded steel structure, construction, bridge and other fields. With the continuous development of economy and the large-scale demand of equipment, the demand of ultra thick q345r equivalent astm material, S355J2 + N steel plate is increasing gradually.

We can produce steel plate, steel pipe, steel coil, and also carry out a series of q345r equivalent astm material processing services, steel plate cutting, welding, etc. we have advanced production technology and production equipment, which can meet the needs of customers to the greatest extent. Whether it is deep processing or cutting, we will communicate with customers in detail to choose the best q345r equivalent astm material processing method and production technology.

q345r equivalent astm material, S355JR is a European standard low alloy high strength structural steel, which is in accordance with EN10025-2. The hardness of S355JR steel is 70-80B, and the yield strength of S355JR steel is 355MPa. JR stands for quality level, equivalent to level B in ChinaChemical composition of S355JR steel: C: < 0.22; Si: < 0.55; Mn: < 1.60; P: < 0.025; S: < 0.025S355JR steel is equivalent to Q345B in China.

In particular, the EU imports a large amount of iron ore from central and South America and Oceania, which are mainly transported by sea. The perfect port infrastructure makes the port operation cost of EU iron ore raw materials import relatively low. However, the q345r equivalent astm material steel transportation between EU Member States is mainly railway transportation, and the EU member states have established a very developed railway network and railway information infrastructure.

Welcome customers to visit our company, we specialize in steel products, adhere to the q345r equivalent astm material 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 q345r equivalent astm material price is also very advantageous. Welcome to purchase steel products from our company.