|
Out Diameter |
1-1/4"-16" |
|
Wall Thickness |
0.109"-0.562" |
|
Length |
3.0m-18m |
|
OD Tolerance |
+/- 0.5% |
|
WT Tolerance |
+/- 10.00% |
GB/T 8162 Grades 10,20,35,45,Q355A,Q355B,Q355C,Q355D,Q355E;
DIN 1629 Grades St37.0, St44.0,St55 St52, Ck45;
ASTM A53/ASME SA53 Grades A & B;
ASTM A519/ASME SA519 Grades 1020,1026,4130,4135;
ASTM A500/ASME SA500 Grades A, B, C, D,E;
EN10210-1 Grade S235JRH, S275JOH, S275J2H, S355JOH, S355J2H, S355K2H;
|
GB/T 8162 |
Standard Specification for pipelines, vessels and steel structures. |
|
DIN 1629 |
Standard Specification used for circular unalloyed steel tubes subject to special requirements |
|
ASTM A53 |
Standard Specification for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and Seamless. |
|
ASTM A519 |
Standard Specification used for machine, automobile, and other mechanical accessory purposes. |
|
ASTM A500 |
Specification for Cold-Formed Welded and Seamless Carbon Steel Structural Tubing in Rounds and Shapes |
|
EN10210-1 |
Standard for hot finished structural hollow section of non-alloy and fine grain steels |
Used in the general structure and the mechanism, including construction, machinery, transportation, aviation, petroleum mining and each kind of structural tubes
In structural engineering, the tube is the system where in order to resist lateral loads (wind, seismic, etc.) a building is designed to act like a hollow cylinder, cantilevered perpendicular to the ground.
The system can be constructed using steel, concrete, or composite construction (the discrete use of both steel and concrete). It can be used for office, apartment and mixed-use buildings. Most buildings in excess of 40 stories constructed since the 1960s are of this structural type.