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    henan ,China
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The addition of Ca element in steel such as s235jr steel plate sizes can refine grain size, partly desulphurize and change the composition, quantity and morphology of non-metallic inclusions. It is similar to that of adding rare earth in steel. It can improve the corrosion resistance, wear resistance, high temperature and low temperature resistance of steel, improve the impact toughness, fatigue strength, plasticity and welding performance of the steel, and increase the cold heading, shock resistance, hardness and contact endurance strength of the steel.

No. 35 steel plate and No. 20 steel plate are carbon structural steel plates that implement the GB/T 711 standard. There are various heat treatment processes for s235jr steel plate sizes, No. 35 steel plate and No. 20 steel plate, such as hot rolling, normalizing, annealing, tempering, quenching and tempering and so on. Generally, after the finished product is made according to requirements, the heat treatment process is performed to achieve the performance.

Although the research and development of steel for pipelines in China started late, the pace of development is fast. From the adoption of X60 steel on the Shaanxi-Beijing line in 1996, the successful application of API X70 pipeline steel in the West-East Gas Transmission Project in 2001, and the use of X80 pipeline steel on the Jining branch line in 2005. In just 10 years, China's pipeline steel has surpassed three steps.

s235jr steel plate sizes products 2020 online supply: 6*1950*10000, 6*2000*10000, 6*2200*10000, 6*2800*12000, 7*2200*8000, 7*2920*8200, 7*2920*8780, 2200*11200, 8*2200*5730, 8*2210*11000, 8*2400*12000, 9*2300*6870, 12.5*2900*11000, 12.9*2987*10384, 13.6*2940*11455, 14*1950*10900, 14*1950*10950, 14*1950*11000, 14*1950*8000, 14*2000*13500, 22*3400*13000, 23.1*2590*7790, 25*1600*9300.

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