304 stainless steel coil tube
USD $2,500 - $8,000 /Ton
Min.Order:1 Ton
Wenzhou Gissun Stainless Steel Co., Ltd.
304 stainless steel coil tube;
1>Before Formed pipe :Assurance of compliance
Review of Sub-vendor ; quality plan ;
Review of samples certification (MTC)
Chemical analysis
Tension &Mechanical tests
2>Formed pipe :
NDT operator qualification
Eddy current testing
Ultrasonic testing
3>Finished pipe :
MT testing for Edge of Pipe(If Exist)
Visual examination
Thickness measurement (Continues Ultrasonic)
Inside/Out Side/ Length dimension control.
Straightness
Visual & Dimention check of edge
Weight control
Marking
Material & NDT retest (if required)
4>Ready for delivery :
Protection coating
Certificate of compliance
Packing check
Shipping mark and number check