GB/T8162 Structure Carbon Seamless Steel Pipes

Steel Grade/Steel Material/Steel Number:

10# 15# 20# 25# 35# 45# 20Mn 25Mn Q235 Q275 Q295 Q345 Q390 Q420 Q460

40Mn2 45Mn2 27SiMn 30Cr 35Cr 40Cr 45Cr 50Cr 38CrSi 12CrMo 15CrMo 35CrMo 42CrMo 12CrMoV

Size Range:

OD: 5-220mm

WT:0.5-30mm

Length:1-12m,as customer’s requirement

Characteristic:

Good Surface Quality

Good OD and ID tolerance controlled to Technical Standard

Stable quality

100% Eddy Current Test

TORICH QUALITY ASSURANCE

Production Process:

Raw Material → Incoming Inspection → Storage → Cutting → Hammering → Pickling Lubrication → Cleaning→ Phosphorization → Clean → Lubrication → Cold Drawing/Cold Rolling → Middle Check → Heat Treatment → Straightening → Ends Cutting → Final Inspection → Bundling → Storage

Raw Material Tube:

Seamless Hollow Sections, produced by hot piercing or hot rolled.

Inspection in the work ship:

Size Measurement

NDT

Inspection: by eddy current test ultrasonic test

Mechanical test.

Application:

For manufacturing pipe lines, equipment pipe fittings and steel structure