Seamless Precision Steel Tube Cold-drawn or Cold-rolled Steel Tube for Precision Applications
Product Information
Product standards: GB/T 3639, DIN 2391, EN 10305-1, ASTM A519
Main products: cylinder pipes for jacks, automobile cylinder sleeves, hydraulic cylinder pipes for large machinery, automobile shock absorber pipes, automobile shaft pipes.
Product use: pipes for auto maintenance equipment, pipes for railway equipment, pipes for nuclear power, pipes for auto parts, pipes for medical equipment, pipes for mining machinery.
Straightness:
The curvature should be ≤3.0mm/m.
The total length (L) curvature of steel tube with an outer diameter greater than 16mm should meet the following requirements:
a) ReH≤500MPa，≤0.15%L
b) ReH> 500MPa，≤0.20% L
Lengths:
The usual length of steel tube is 2000mm~12000mm.
According to the request of the buyer, the steel tube of other lengths can be produced after negotiation
Delivery Status:
Cold working/hard state: +C
Cold working/soft state: +LC
Stress relief annealing state after cold working: +SR
Annealing state: +A
Normalizing state: +N
