Steel Tubes #10

Listing ID #5365428

high precision cold drawn seamless tube for gas springs

size φ3.0mm-φ160mm;thickness 0.4mm-20.0mm
material :#10, #20, #45
od tolerance:+/-0.03mm
id tolerance:+/-0.02mm
thickness tolerance:≤0.03mm
straightness:≤0.08mm/m
roughness:0.1ra-0.3ra
condition:
1. Bk (+c)no heat treatment after last cold forming process.
2. Bkw (+lc) after last heat treatment there is a light finishing pass (cold drawing)
3. Bks (+sr) after the final cold forming process the tubes are stress relieve annealed.
4. Gbk (+a) after the final cold forming process the tubes are annealed in a controlled atmosphere.
5. Nbk (+n) after the final cold forming process the tubes are annealed above the upper 
packing:
woven bag / wooden or crate carton/ bundle packing/ plain end or vanished as per customer's request.