Main causes of subsurface bubble formation in S690QL heat treatment

The company has a group of mature steel plate production and processing line construction and production management experience. In addition, the company has professional and technical personnel. BBN steel is a modern enterprise integrating scientific research and development, production processing, sales and service. The company now has finance department, production department, sales team, technical department, quality control department, logistics department and after-sales service team. At the same time, it also adheres to international standards and adheres to the international line.

Pipeline steel refers to a type of steel with special requirements used for the transportation of oil, natural gas and other pipelines. Depending on the thickness and subsequent formation, pipeline steel can be produced by hot continuous rolling machines, furnace coil machines or plate machines, and formed into large-diameter steel pipe by spiral welding or UOE straight seam welding. The current development trend of S690QL heat treatment pipeline engineering is large-diameter, high-pressure rich gas transportation, high cold and corrosive service environment, and thickening of submarine pipelines.

The advantage of hot-rolled stainless steel plate is that it can eliminate the damage caused by S690QL heat treatment metal structure in the process of ingot casting to a certain extent, eliminate some tiny defects in the structure, refine the grains of stainless steel material, promote the structure of steel closer, and improve the performance of the material as a whole. This kind of lifting is mainly manifested in the rolling direction, which can make the S690QL heat treatment steel no longer isotropic to some extent, and some defects such as bubbles, cracks and looseness formed during pouring can be eliminated under high temperature or high pressure.

Weathering steel S690QL heat treatment inventory: 22*3400*13000, 23.1*2590*7790, 25*1600*9300, 25*1600*9500, 25*2400*8200, 30*1600*10720, 30*1600*8600, 31.2*2950*9380, 31.9*2920*9420, 32*2500*6000, 34*1900*12000, 38*3300*13400, 60*1750*9100, 70*2260*7240, 70*2260*7700, 70*2260*7950, 70*2270*7000, 70*2270*7350, 70*2270*7600, 70*2500*12000, 75*2390*4320, 80*2200*10000, 80*2250*8850.

The company attaches great importance to logistics services, sets up our own transport truck fleet, improves customer response capacity through the improvement of logistics capacity, and further reduces costs. Customers ordering S690QL heat treatment steel from our company can not only enjoy the service of fast delivery, but also enjoy lower transportation costs. Fast, accurate, simple and efficient has always been our principle.

We have replenish steel materials stocks, now there are huge stocks of S355JR, A36, S690QL heat treatment A572 Gr 50, 16Mo3, A516 Gr 70, ABS grade A, AH32, AH36, EH36, SPA-H, SG295,SM700C etc steel materials. We can arrange delivery for those stock steel products within short time. Meanwhile, we also provide further processing for the S690QL heat treatment steel materials, such as cutting, drilling, bending, welding, etc. Please do not hesitate to contact us if you have any steel demands.