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High Strength Cold Rolled Steel Tube 0.3mm Wall Tthickness For Motorcyle Shock Absorber
|Material||Low Carbon Steel,Carbon Steel,Carbon Alloy Steel,E355,E235,ST37.2||Brand||Hongbao|
cold rolled steel tube,
cold drawn seamless pipe
Cold Drawn Seamless Steel Tube EN10305-1 E235 E355Steel Tube for Precision Application
GB Series (mm)
DIN series (mm)
|Enterprise internal control standards (mm)||
Special high-precision (mm)
|Wall thickness||0.3-10||±10%; MIN±0.15||±10%||±10%; MIN±0.05||±10%; MIN±0.03|
The tubes can be produced in the following delivery conditions:
BK (+C) Cold finished/hard (cold finished as drawn).
No heat treatment after the last cold forming process.
BKW (+LC) Cold finished/soft (lightly cold worked)
After the last heat treatment there is a light finishing pass (cold drawing).
BKS (+SR) Cold finished/stress relieve annealed.
After the final cold forming process the tubes are stress relieve annealed.
GBK (+A) Annealed.
After the final cold forming process the tubes are annealed in a controlled atmosphere.
NBK (+N) Normalized. (Mainly focus on)
After the final cold forming process the tubes are annealed above the upper transformation point in a controlled atmosphere.