After the heat treatment of the 45# seamless steel pipe, it is necessary to wait for it to cool before proceeding to the next step. The cooling method...
Date:2019-04-08 Tags:45#Cooling method of seamless steel pipe
The chemical composition specified in the general standard refers to the smelting component. It refers to the chemical composition of the 45# seamle...
Date:2019-04-08 Tags:45# analysis of seamless steel pipe industry problems
The primary industry and real estate formed support for investment in January-February. The national fixed asset investment (excluding farmers) was 4...
Date:2019-04-03 Tags:The primary industry and real estate formed support
The crude steel output is growing too fast. The oversupply pressure in the steel industry shows that under the background of high steel prices, steel ...
Date:2019-04-03 Tags:The crude steel output is growing too fast. The oversupply pressure in the steel indust
Proceso de producción de tubería de acero con costura recta (LSAW) de soldadura por arco sumergido d...
Date:2019-04-03 Tags:Tubería de acero LSAW, proceso de producción de LSAW
In general, with the end of the "two sessions", the domestic coking coal production will be gradually released in the later period, but the coking co...
Date:2019-04-02 Tags:Can the double focus be improved at the end of the heating season?
From 2017 to 2018, as the downstream steel market gradually lost from loss to obvious profit, the ferroalloy industry has considerable profit margin...
Date:2019-04-02 Tags:Ferroalloy prices will be high in the near future
After the opening on March 20, the main contract of iron ore fell by nearly 5%, and the disk was always dominated by oscillations, with the largest ...
Date:2019-04-02 Tags:Iron ore main contract fell by nearly 5%
Precision spiral steel pipe is a kind of high-precision steel pipe after cold drawing or hot rolling. Because the inner and outer walls of precisio...
Date:2019-03-29 Tags:Steel pipe difference: the difference between precision steel pipe and spiral steel pipe
Burn-through and hydrogen-induced cracking in spiral steel pipe welding are hot topics at home and abroad. There are many influencing factors of ...
Date:2019-03-29 Tags:Influence of the thickness of spiral steel pipe on welding quality
With the continuous development of China's economy, the country vigorously develops the energy industry. Pipeline long-distance oil and gas pipeli...
Date:2019-03-29 Tags:What should be done on the surface of high-frequency anti-corrosion spiral steel pipe?
Skin turning of billets The steel billet is a process for removing the surface defects and scale of the round billet and processing the specified...
Date:2019-03-28 Tags:Brief introduction of spiral steel pipe billet processing content and equipment
The cut steel pipe is inspected according to technical requirements. The inspection includes checking the size and bending of each pipe and the qualit...
Date:2019-03-28 Tags:Spiral steel pipe manufacturers steel pipe size and quality inspection
There are many types of steel pipes and different uses, so their technical requirements are different and production methods are different....
Date:2019-03-28 Tags:Brief introduction to the manufacturing skills of spiral steel pipe manufacturers
The intermediate wave is formed at the side of the precision stainless steel strip and half of the center (1/4 inch from the side). The main reason...
Date:2019-03-27 Tags:Requirements for the use of precision stainless steel tubes
