中文  |  English
    Home     CONDENSING TUBE/STEEL TUBE
Contact us

Tel: +86-021-3636 2892
M:    +86-186 218 20086
Fax: +86-021-6305 1741
E-mail: jeff.z@shcosmolink.com
Add: Room 503, XieTu Road NO.788,Luwan District,Shanghai,China
 

CONDENSING TUBE/STEEL TUBE

For condenser, heating element and compressor etc,.

Main Material:
Steel strip (grade: SPCC, SPCD, BHG1*)
*according to our test, the material grade BHG1 physical performance is similar to European material. (the information is for reference only)
Structure & Scope::
1)      Plain/Copper coated steel tube
Diameter: ¢4.00~7.94mm; WT.: 0.5~0.7mm
2)      Double wall steel tube,
Diameter: ¢2.56~4.76mm; WT.: 0.5~0.7mm
3)      Galvanized steel tube

Diameter: 4.00~7.94mm; WT.: 0.5~0.7mm

Chemical Composition:
The chemical composition of the steel strip is according to steel factory’s guarantee note.
Physical performance:

Tensile strength > 290 MPa
Elongation A50 % > 25
Average hardness< 55 HR 30T

Bend test
The finished tube shall stand bending on a centerline radius equal to six times the tube outside diameter without cracking or developing other flaw.
 
 
Flattening test
A section of the tube of about 50 mm in length, the section of the tube containing the welded area shall stand being completely flattened between parallel plates: the welded area shall not show evidence of cracking or flaws.
 
 
 
 
Expansion test
A section of tube of about 300 millimeters in length shall stand being expanded over a tapered mandrel, for a depth of 10 mm, in a way that inside diameter does not exceed the original outside diameter of the tube * 1.2.
The expanded part of the tube must not visually show evidence of cracking or flaws.
 
 
 

Production capability:
80000 kgs per day
R134a Cooling System Tube Inside standard

Residual moisture ≤30mg /m2
Residual impurity ≤30mg / m2
Residual mineral oil/paraffin/chlorine ≤10mg / m2
Air tightness: air pressure 1.6Mpa for 3 sec. no leakage
Air pressure maintains: no less than 0.2MPa
Welding bur < 0.2mm