Characteristics of seamless pipe

无缝管过程性能测试:压扁test, tensile test, impact test, flaring test, hardness test, metallographic test, bending test, nondestructive testing (including eddy current X-ray and ultrasonic testing).

Seamless pipe chemical analysis: the chemical composition of the material for chemical analysis, chemical composition to meet the standard requirements.

Seamless pipe pressure and hydrostatic test is for pressure tube by into the hydrostatic test, which do not maintain the prescribed pressure value not less than 5 seconds, not to disclose, the regular supply hydraulic pressure test is 2.45MPa pressure The pressure test is P = 0.5MPAa.

The corrosion test: industrial corrosion-resistant steel pipe according to standard regulations or agreement between the corrosion of steel pipe corrosion resistance test, no intergranular corrosion.

Characteristics of seamless pipe

• the outer diameter is smaller.
• High precision can do small quantities of raw.
• cold drawn steel pipe with high precision and good surface quality.
• steel pipe cross area is more complex.
• steel pipe superior performance, relatively dense metal.