SPCD Bundy Pipe Single Wall Double Wall Copper Coated

Name: SPCD Bundy Pipe Single Wall Double Wall Copper Coated
Brand: Jiangsu Hongbao Group Co., Ltd.

Single Wall Double Wall Copper Coated Steel Tube Bundy Tube Single Wall Steel Tube Description: Bundy tube, sometimes called Bundy pipe, is type of double-walled low-carbon steel tube manufactured by rolling a copper-coated steel strip through 720°F and resistance brazing the overlapped seam in a process called Bundywelding. It may be zinc coated for corrosion protection. It is primarily used in automotive hydraulic brake lines in cars. We can supply any type and diameter of

Place of Origin Jiangsu, China

Packaging Details Seaworthy Coil Bundle Packing

Model Number BHG1

Supply Ability 30000MT per year

Certification ISO

Brand Name Hongbao

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Product Description

Single Wall Double Wall Copper Coated Steel Tube Bundy Tube Single Wall Steel Tube

Description:

Bundy tube, sometimes called Bundy pipe, is type of double-walled low-carbon steel tube manufactured by rolling a copper-coated steel strip through 720°F and resistance brazing the overlapped seam in a process called Bundywelding. It may be zinc coated for corrosion protection. It is primarily used in automotive hydraulic brake lines in cars. We can supply any type and diameter of Bundy Tube your requirement calls for.

2. Steel Grade

BHG1, SPCC, SPCD, SPCEN, ST14, ST15, ST16, DC04, DC05, DC06

3. Heat Treatment

BK or NBK

4. Specification

OD mm	4	4.2	4.76	6	6.35	7.8	8	9.52
W T	0.5-1.0mm (0.5-0.7mm common WT)
Tolerance	±0.05mm
Length	180Kg/coil; 700-1000m/coil; per customer’s request

5. Production Process

Tube welding– Cold drawing (reduce diameter)– Annealing in Protected Atmosphere— Cleaning-- Leakage detection– Zinc/Copper Plating– Keep pressure (Airtightness) – Packing

6. Surface Treatment

Coating	Thickness	Salt spray test duration
Copper/White Zinc/Colour-Zinc	8μm	72h
PVF	8μm+20μm	1000-2000h
Military Green Zinc	8μm	180h
GALFAN	8μm+20μm	1000-2000h
Nylon	8μm+40μm	180h