Spiral Steel Pipe

Inspection of physical methods
The physical properties of spiral steel pipes include parameters such as hardness, yield strength, tensile strength and elongation. These parameters are usually detected by methods such as tensile test, impact test and hardness test.

Hydrostatic pressure test
The hydrostatic pressure test of the spiral steel pipe is a method to detect the leakage and strength of the steel pipe. In the test, the inside of the steel pipe is filled with water under a certain pressure to observe whether there is any leakage and deformation. The test pressure is usually set according to the standard requirements.

Density test
The tightness test is used to detect whether there are non-dense defects in the spiral steel pipe, such as pores, cracks, incomplete penetration and loose tissue. Commonly used methods include radiographic testing, ultrasonic testing, and eddy current testing.