Specification:Cold-drawn or Cold-rolled Precision Inside Diameter Seamless Steel Tubes for Hydraulic and Pneumatic System Service
Application:Suitable for Hydraulic and Pneumatic System Service
Grade:20 45 25Mn Q345B/C/D/E 27SiMn
Manufacture:Cold-drawn or Cold-rolled
Section of Shape:Round
Outside Diameter: 25mm to 500mm according to GB/T 32957
Wall Thickness:According to GB/T 32957 or Specified
Length of Pipe:Fixed 5.8/6 Meters or SRL/DRL or Specified
Permissible Variations:According to GB/T 32957 Standard
End of Finish: Plain End or Bevelled End
Heat treatment:Heat Treated
Surface:+C +LC +SR +A +N
MTC: Mill Test Certificate according to GB/T 2102 or EN10204 3.1B
Marking & Packing: According to GB/T 2102 or Specified 
MOQ:5 Tons
Transportation:FCL&LCL by sea
Delivery:10-15 days after signed contract
Payment:L/C or T/T or D/P or O/A


Relevant Links:

1ASTM A511Seamless Staniless Steel Mechanical Tubing
2ASTM A519Seamless Carbon and Alloy Steel Mechanical Tubing
3ASTM A554Welded Stainless Steel Mechanical Tubing 
4ASTM A513Electric-Resistance-Welded Carbon and Alloy Steel Mechanical Tubing
5EN 10296-1&2Welded Circular Steel tubes for Mechanical and General Engineering Purposes
6EN 10297-1&2Seamless Circular Steel Tubes for Mechanical and General Engineering Purposes
7EN 10305-1&2&3&4&5&6Steel Tubes for Precision Applications
8JIS G3441Alloy Steel Tubes for Machine Purposes
9JIS G7216Plain End Seamless Precision Steel Tube
10JIS G7217Plain End Welded Precision Steel Tube
11GB/T 3639Seamless Cold-drawn or Cold-rolled Steel Tubes for Precision Applications
12GB/T 12770Welded Stainless Steel Tubes for Mechanical Structure
13GB/T 31315Cold Drawn or Cold Rolled Precision Weld Steel Tubes for Mechanical Structures
14GB/T 32957Cold-drawn or Cold-rolled Precision Inside Diameter Seamless Steel Tubes for Hydraulic and Pneumatic System Service