质量可靠的精密管生产厂家

The vacuum carburizing temperature is generally higher than that of ordinary gas carburizing. Carburizing and diffusion are often used at 920~1040 C. As shown, there are two stages: pulse ventilation, stop gas, multi-stage carburizing and diffusion. The effect is better. Vacuum carburized layer is formed faster than ordinary gas, liquid and solid carburized layer because of its high temperature, especially its clean surface and high activity. If the carburized layer needs 1 millimeters, it will take 927 hours and 1 hours at 1033 degrees Celsius, only 5 hours.
Precision steel pipe has the advantages of no oxide layer on the inner and outer walls, high pressure, no leakage, high precision, high finish, small cold bending deformation, high flatness, no cracks and so on. It is mainly used to produce pneumatic or hydraulic components. As a cylinder or an oil cylinder, it can be a seamless tube. The chemical composition of cold drawn precision steel pipe

The chemical composition of the precision pipe is carbon C, silicon, manganese, sulfur, sulfur, phosphorus, chromium, chromium. outer wall finish, no oxide layer after heat treatment, high cleanliness, high pressure. Cold bending, leveling and no cracks. The precision steel pipe provided by Tianjin century federation can be used for all kinds of complex deformation and machining.
Precision steel pipes are mainly used to produce seamless or welded products such as pneumatic or hydraulic components, such as oxide layer on the inner and outer walls, high pressure,  SH, no cold bending deformation, flat and no crack. Precision steel pipe mainly produces 10, 20, 35, 45, 40 cr, 42CrMo grade precision seamless steel pipe can also be consulted and supplied.山东大鼎钢管厂

受钢铁行业的利润挤压的拖累，钢板的消费更趋于高端产品，和两端产品数量进行了调整。据调查，热轧商品产量略有下降，国际冷轧产品逐渐增多，与钢铁产业链本身的延长增加。改变冷热价差也将导致产业链的调整，因此价格大幅上升格式的时刻将难以为继。据统计，截至目前，在世界一些敏感地区钢材产品的价格增加了在后期低水平高达200元，目前的价格，和市场已部分非敏感的操作。