

Dimension | |
OD(mm) | WT(mm) |
4 | 0.5 |
4.76 | 0.6 |
4.76 | 0.65 |
6 | 0.6 |
6 | 0.65 |
8 | 0.6 |
OD<8mm, use hot dipped galvanized OD ≥ 8mm, use eletronic zinc coating(galvanizing) |
Dimension check | Tolerance on Outer Diameter(mm) +0.03mm -0.03mm | |
Tolerance on Wall Thickness(mm) +0.03mm -0.01mm | ||
Seal Airtight Test | 1.6Mpa N2,without leaking | |
Inside Surface Cleanliness (soluble residue) (insoluble residue) | <50mg/m² | |
MECHANICAL COMPOSITION(%) | TENSILE Rm(N/mm2) | ≥270 |
YIELD Rel(N/mm2) | ≥180 | |
ELONGATION A | (%)≥14 | |
CHEMEICAL COMPOSITION(%) | C | ≤0.11% |
Mn | ≤0.4% | |
S | ≤0.03% | |
P | ≤0.03% | |
Surface treatment: copper-plated, zinc-coated, without smooth coating |
Description:
Electro-welded Single Wall Steel Tubing
Single wall steel tubing is the most common type of tubing used in household refrigeration applications. Bundy single wall tubing is manufactured by continuously forming a single low carbon steel strip into a tubular shape and welding the adjoining edges using a high frequency induction welding process. Through strict process controls, the internal weld bead is held to a minimum and all external flashing is removed. Corrosion resistant coatings are applied in-line to assure uniform coverage.
Application:
- AC
- refrigeration
- heat exchanger
- automobile fuel lines,hydraulic brake lines
- compressors, etc
Chewit International