Cold Rolled Flat Oval Special Inner Shaped Carbon Steel Tubes& Pipes

1.shape:flat oval inner shape,round outside

2.material:carbon steel ,low alloy steel 

3.grade:10#(aisi1010,s10c),20#(ck20,aisi1020),45#ck45,aisi1045),st52(16Mn,Q345B),25Mn(stkm13c-t)

4.made by:steel billet/round steel 

5. final supply condition:cold drawn / cold rolled and stress-relieved(BK+S)                                          

6.tolerance:+/-0.02mm OD,+/-10% WT+0.2/-0mm

7.package:steel trips hexagonal boundle,plastic film+woven bag outside

8.payment term:T/T 30% deposit 

9.usage:shock absorber BUSHING

 ****tips:step4 is instead by cold rolled.

Cold rolling technique is more precision than cold drawn and better surface .

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