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Znic Coated Galvanized Coil Tube 4.2x0.5 Welded Steel Pipe 240h Salty Spray Test

Place of Origin: Jiangsu, China
Brand Name: Hongbao
Certification: ISO
Model Number: BHG1
Minimum Order Quantity: 5MT
Price: Negotiable
Packaging Details: Seaworthy Coil Bundle Packing
Delivery Time: 15 working days
Payment Terms: T/T, L/C, Western Union, D/A, D/P
Supply Ability: 30000MT per year
Product Details
Material:: SPCC, SPCD-SD, SPCD, SPCE Thickness:: 0.45-1.5mm
Size:: 4*0.5, 4.2*0.5, 4.76*0.65 Shape:: Coil
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Product Description

Wall Bundy Tube For Refrigerator Freezer Condenser Parts Znic Coated Galvanized Coil Tube

 

Description:

  1. With smooth surface, the average roughness Ra is 0.6µm≤Ra≤1.9µm
  2. Inner cleanliness is 0.1948/m2 Max.
  3. Various ways of bending and cutting fabrication is possible
  4. Zinc, copper plating is available following customer’s request. The hot galvanizing thickness can be above 8 µm
  5. Clean inner wall with industrial alcohol to guaranty the cleanliness
  6. Salt spray test for hot galvanizing tube is above 72 hours
  7. Packing: antirust paper for inner packing and cloth for outer packing

 

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

 

7. Packing: In coil, in wooden box with seaworthy packing

 

8. Application

Fluid carrying system for automobiles

Fluid carrying system for refrigerators

Wire condenser for chillers, showcase

Vending machine, ice machine etc.

 

Znic Coated Galvanized Coil Tube 4.2x0.5 Welded Steel Pipe 240h Salty Spray Test 0Znic Coated Galvanized Coil Tube 4.2x0.5 Welded Steel Pipe 240h Salty Spray Test 1