By expanding in the engine cylinders, the cylinders are converted to mechanical energy. The piston in the compressor cylinder compresses the gas to increase the pressure. The outer casing of a turbine or rotary piston engine is commonly referred to as a cylinder. Application of stainless steel cylindrical tubes: printing (tension control), semiconductor (spot welder, chip grinding), automatic control, robots, etc.
The Rockwell hardness test of cylindrical tubes is actually the same as the Brinell hardness test, the indentation test method, but the difference is that Rockwell mainly measures the depth of the indentation, and the Rockwell hardness test method is the most widely used because Rockwell hardness is suitable for testing soft metal materials, effectively making up for insufficient Brinell hardness testing, and relatively simple methods. However, due to the small indentation, the hardness value is not as accurate as the Brinell hardness value.
Cangzhou Steel Pipe Group (CSPG)Co.,Ltd.
No.92 JieFang East Road ,Cangzhou City, Hebei,P.R.China.
CSPG has more than eighteen years history company which located in Lecong Iron and Steel World, a well-known steel distribution center in China, with superior geographical position and convenient water and land transportation.
We are a direct-selling manufacturer specializing in the research and development of spiral steel pipes, steel spiral pipes, anti-corrosion steel pipes inside and outside. Since its inception, the company has been guided by a brand-new thinking of steel pipe product market based on the business philosophy of honesty, pragmatism and knowledge-seeking.