Jiangsu Hongbao Group Co., Ltd.
Jiangsu Hongbao Group Co., Ltd. Manufacture since 1958
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Thickness 4.76mm Copper Zinc Coated Bundy Tube Welded Galvanized Steel Bundy Tube For Condenser
Description
Single wall bundy tube mainly used on refrigeration condenser and evaporator, brake tube,oil injection tube line and link pipe parts. It would be in coils and straight tube.
THE TYPE OF SURFACE COATING, CONDITION AND CODE STEEL TUBE
| type | Coating condition | code |
| Without coated | Inner and outer side without coating | SWP |
| CU coated | Cu coated on outer side only | SWCu |
| ZN Coated a | Outer with white /colour/olive ZN coated | SWZn |
| CU coated both sides b | Cu coated on outer and inner side both | SWCuCu |
| ZN coated outer CU, coated inner c | Outer Zn coated, inner CU coated | SWZnCu |
| a electric or hot dip galvanized b made by both sides CU coated steel coil. On the welding line ,to be negotiated c made by both sides CU coated steel coil | ||
Tolerance of OD
| OD | usual(PA) | precision(PC) |
| <4.76 | ±0.08mm | ±0.05mm |
| 4.76 ~ 8.00 | ±0.12mm | ±0.07mm |
| >8.00 ~ 12.00 | ±0.16mm | ±0.10mm |
| >12.00 | ±0.20mm | ±0.12mm |
Mechanical property
| type | Tensile strength Rm/Mpa | Yield strength ReL/Mpa | elongation A/% |
| Soft tube(MA) | 280-320 | ≥170 | ≥35 |
| Hard tube(MB) | 320-350 | ≥200 | ≥25 |
Chemical composition %
| element | C | Si | Mn | P | S |
| cold rolled low carbon steel | <0.08 | <0.03 | <0.30 | <0.03 | <0.03 |
| Cold rolled exceed Low carbon steel | <0.008 | <0.03 | <0.25 | <0.02 | <0.03 |
Feature:
1) Widely be in used in non-freon refrigerator and other refrigeration equipment .
2) Standard: Standards:ASTMA254,DIN,GB etc.
3) Outside diameter: 3.2mm~10.00mm
4) Wall thickness: 0.4mm~1.0mm
5) Materials:BHG,SPCC
6) Surface Treatment: Bright ,Zinc-coated, Copper-coated
