Audited Supplier
ST34-2 37-2 44-2 52-3
Welded
Cold Drawn
Carbon
Bright Annealing, Black Phosphating, Galvanizing
Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Machinery Industry, Chemical Industry, Heat Exchanger
Round
GB/T24187-2009
Bk (+C) Bkw (+LC) Bks (+Sr) Gbk (+a) Nbk (+N)
GB/T24187-2009
ISO 9001 Ts16949
Non-Secondary
Automotive, Hydraulic System and Precision Device
CW
Plywood Box or Bundles
OD3-100mm
China
7304319000
Product Description
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
Chewit international Located in zhangjiagang city which is along The Yangtze Golden Channel the junction of River and Coast Economic Belt. It owns an excellent geographic position, as it is close to Nanjing city in the north, adjacent to Suzhou and Wuxi cities in the south, next to Shanghai international city in the east. Zhangjiagang international port and State highway endow us a convenient water and land transportation which links us to the outside world both home and aboard. Chewit International is one group company with two manufactures one is producing steel forgings for Marine, Power, Boiler, Ocean, Oil, Petrochemical, Mechanical and Hydraulic fields and the other is producing precision steel tubes for automotive industry and hydraulic system and also one semi-independent company specially for import and export business. We have a total area of 150000 square meters with the employees over 200 people. All the products well produced by our mills need to be double inspected by chewit professional quality controller and then we will offer our customer the vivid report for the tested items. Only those products which are inspected well can be allowed to delivery to our customers. By the means of strict inspection, we wined a lot of customer for long term business both home and abroad. We adhere to our company tenet Customer First, Quality formost and always try our best to serve our customer with our full heart.
