S690QL1 material application and heat treatment

In the year of 2015, customer from Peru oil refinery contact with us from Internet. After one month's negotiation and quotation, they chose us as there supplier of raw steel plate S690QL1 material grade ASTM A36. We get an trail order of 300 tons in April. When the first ship arrived, they inspect the steel plate and very happy with the quality we supply. Then they put another 1700 tons order, we sent to them within 90 days. Our company management group visit the customer in the beginning of 2016 and the visit is very successful.

S690QL1 material, Special thick steel plate cutting needs to be preheated in advance. Some steel plates are prone to cracks after entering the cutting process, sometimes that is because the temperature is too low, and it is necessary to perform pre-heat treatment in advance for such cases. The staff can preheat the steel plates first, so that the temperature of the steel plates will gradually increase, and then the flame gun can be used to cut. The probability of cracks in the cut material is very low, and the quality of the steel plate is also guaranteed.

Advantages of hot rolling: hot rolling can destroy the casting structure of ingot, refine the grain of steel and eliminate the defects of microstructure, so that the steel structure is dense and the mechanical properties are improved. This improvement is mainly reflected in the rolling direction, so that the S690QL1 material steel is no longer isotropic to some extent; the bubbles, cracks and looseness formed during pouring can also be welded under the action of high temperature and pressure.

The company's main products are shipbuiling steel plates, boiler plates, container plates, S690QL1 material pipeline steel plates, structural steel plates, low-alloy plates, steel sections of various materials and sizes. With the advent of the information age, we have also brought new opportunities to Ascendas. The company network will always provide customers with fast online inquiries. We adhere to the principle of honesty and cooperation and organize high-quality and competitive prices. Resources to thank new and old customers for their support, patronage and love for our company!

Tags: