erw welding defects

Brand Name:ST

Model Number:ERW steel pipe 020

Place of Origin:Hebei，China

... small, blasting the mouth is generally not the origin of the spiral weld, so the higher security. Spiral weld near the defect with parallel spiral weld force is smaller, so the risk of expansion is not. Product Description Standard JIS, AISI, ASTM, GB,

Brand Name:HuaYang

Model Number:ERW

Place of Origin:china

... - disc shearing process, base metal pit, scratch less; 3. There is basically no residual stress in the finished pipe after stress elimination; 4. Short weld, small probability of defects;Conditional transportation of

Brand Name:XIANGTONGHUIYUAN

Model Number:Welded pipe SPCC

Place of Origin:China

...t affect the quality of raw materials are mainly the three aspects of the unstable mechanical properties of the steel strip, the surface defects of the steel strip and the large deviations in geometric dimensions. Therefore, we should focus on these three

Brand Name:HuaYang

Model Number:ERW

Place of Origin:china

... - disc shearing process, base metal pit, scratch less; 3. There is basically no residual stress in the finished pipe after stress elimination; 4. Short weld, small probability of defects;Conditional transportation of

Brand Name:XIANGTONGHUIYUAN

Model Number:Welded pipe SPCC

Place of Origin:China

...t affect the quality of raw materials are mainly the three aspects of the unstable mechanical properties of the steel strip, the surface defects of the steel strip and the large deviations in geometric dimensions. Therefore, we should focus on these three