p295gh steel used for petroleum top 6 manufacturers in China

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40Cr grade under GB/T 3077-2015 standard is a alloy steel bar material. P295GH steel used for petroleum, 40Cr alloy chemical composition (C: 0.37 ~ 0.44, Si: 0.17 ~ 0.37, Mn: 0.50 ~ 0.80, Cr: 0.80 ~ 1.10, Ni: ≤0.30, P: ≤0.030, S: ≤0.030, Cu: ≤0.30, Mo: ≤0.10). Heat treatment: First quenching heating temperature (℃): 850; coolant: oil; Temperature heating temperature (℃): 520. 40Cr steel tensile strength (σb / MPa): ≥980. Yield point (σs / MPa): ≥785

The performance of heat treatment process reflects the difficulty of heat treatment and the tendency of defects of the steel. It mainly includes hardenability, superheat sensitivity, temper embrittlement tendency and oxidation decarburization tendency. The hardenability of p295gh steel used for petroleum, alloy steel is high. The cooling method can be used slowly during quenching, which can reduce the deformation and cracking tendency of the workpiece. The addition of Mn and Si will increase the superheat sensitivity of steel. The strengthening effect of alloy elements on steel in quenching and tempering state is the most significant.

By Region: data shows that in the first quarter of Asia, crude steel p295gh steel used for petroleum production was 315.2 million tons, down 0.3% year on year. Crude steel production in the EU region in the first quarter was 38.3 million tons, down 10.0% year on year. The output of crude steel in North America in the first quarter was 29.5 million tons, down 4.0% year on year. According to the output ranking, according to the latest data of the p295gh steel used for petroleum world iron and Steel Association, the output of crude steel in the top ten countries in March 2020 was 126 million tons (85.71% of the world), and the output of crude steel in the first quarter was 376 million tons (85.07% of the world).

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It is understood that resources in some markets have arrived normally recently and the overall p295gh steel used for petroleum inventory has begun to increase, but the overall inventory pressure of p295gh steel used for petroleum traders is still not large; secondly, the ex-factory prices of steel mills are firm, and p295gh steel used for petroleum agents are low in willingness to trade at low price under the support of high costs. On the whole, demand has not improved overall, but ordering costs are high and inventory pressure is controllable. It is expected that the p295gh steel used for petroleum prices may consolidate tomorrow.