Round Steel Tube Specification | ||||||
Nominal Diameter | Inch Outside Diameter | Outside Diameter | Wall Thickness | |||
15 | 1/2 | 20-22 | 0.7-2.75 | |||
20 | 3/4 | 24-26.5 | 0.7-2.75 | |||
25 | 1 | 31-33.4 | 0.7-3.75 | |||
32 | 1 1/4 | 40-42.5 | 0.7-4.0 | |||
40 | 1 1/2 | 46-48.3 | 0.7-7.0 | |||
50 | 2 | 57-60.3 | 0.7-7.0 | |||
65 | 2 1/2 | 74-76.3 | 0.7-7.0 | |||
80 | 3 | 86-89 | 0.7-8.0 | |||
100 | 4 | 111-114 | 0.8-9.0 | |||
125 | 5 | 138-140 | 0.9-9.0 | |||
150 | 6 | 164-165 | 1.0-11.5 | |||
200 | 8 | 218-219 | 1.1-12 |
Surface Treatment | ||||||
Finish | Thickness | Characteristics | Applications | |||
No. 1 | 3.0mm~50.0mm | Finished by hot-rolling, annealing and pickling, characterized by white pickled surface | Chemical industry equipment, Industrial tanks | |||
No. 2B | 0.3mm~6.0mm | Finished by heat treatment, pickling after cold rolling, followed by skin pass line to be more brighter and smooth surface | General Application Medical Instruments,Tableware | |||
No. BA | 0.5mm~2.0mm | Bright heat treatment after cold rolling | Kitchen utensil, kitchen ware,architectural purpose | |||
No. 4 | 0.4mm~3.0mm | Polishing with No. 150 to No.180 mesh abrasivesThe most popular finishes | Milk & Food processing acilities, Hospital Equipment, Bath-tub | |||
No. 8 | 0.5mm~2.0mm | A mirror-like reflective surface by polishing with finer abrasives over 800 mesh | Reflector, Mirror, Interior-Exterior decoration forbuilding | |||
HL | 0.4mm~3.0mm | Finished by continuous linear polishing | Architectural purposes, escalators, kitchen ware vehicles |
Round Steel Tube Specification | ||||||
Nominal Diameter | Inch Outside Diameter | Outside Diameter | Wall Thickness | |||
15 | 1/2 | 20-22 | 0.7-2.75 | |||
20 | 3/4 | 24-26.5 | 0.7-2.75 | |||
25 | 1 | 31-33.4 | 0.7-3.75 | |||
32 | 1 1/4 | 40-42.5 | 0.7-4.0 | |||
40 | 1 1/2 | 46-48.3 | 0.7-7.0 | |||
50 | 2 | 57-60.3 | 0.7-7.0 | |||
65 | 2 1/2 | 74-76.3 | 0.7-7.0 | |||
80 | 3 | 86-89 | 0.7-8.0 | |||
100 | 4 | 111-114 | 0.8-9.0 | |||
125 | 5 | 138-140 | 0.9-9.0 | |||
150 | 6 | 164-165 | 1.0-11.5 | |||
200 | 8 | 218-219 | 1.1-12 |
Surface Treatment | ||||||
Finish | Thickness | Characteristics | Applications | |||
No. 1 | 3.0mm~50.0mm | Finished by hot-rolling, annealing and pickling, characterized by white pickled surface | Chemical industry equipment, Industrial tanks | |||
No. 2B | 0.3mm~6.0mm | Finished by heat treatment, pickling after cold rolling, followed by skin pass line to be more brighter and smooth surface | General Application Medical Instruments,Tableware | |||
No. BA | 0.5mm~2.0mm | Bright heat treatment after cold rolling | Kitchen utensil, kitchen ware,architectural purpose | |||
No. 4 | 0.4mm~3.0mm | Polishing with No. 150 to No.180 mesh abrasivesThe most popular finishes | Milk & Food processing acilities, Hospital Equipment, Bath-tub | |||
No. 8 | 0.5mm~2.0mm | A mirror-like reflective surface by polishing with finer abrasives over 800 mesh | Reflector, Mirror, Interior-Exterior decoration forbuilding | |||
HL | 0.4mm~3.0mm | Finished by continuous linear polishing | Architectural purposes, escalators, kitchen ware vehicles |