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DELIVERY TECH-SPECIFICATION
 
PRODUCT NAME : ALUMINIUM FIN STOCK (BARE AND HYDROPHILIC) 

 
1. HYDROPHILIC PRE-COATED ALUMINUM FIN STOCK
 
2. BARE ALUMINUM FIN STOCK
 
3. APPLICATION RANGE
 
THIS SPECIFICATION APPLIES FOR HEAT-EXCHANGERS Al FIN STOCK OF AIR CONDITIONERS.

4. CHEMICAL COMPOSITION



Alloy Si Fe Cu Mn Mg Cr Zn Ti Others Al
Tag No.                 Per Total  
8011 0.50  0.9 0.6  1.0 0.10 0.20 0.05 0.05 0.10 0.08 0.05 0.15 Balance
Remarks in the table, if there is upper and lower limit of the content, it is alloy element if the content is a single value, aluminum will be minimum limit other impurity element will be maximum limit.

5. MECHANICAL   PERFORMANCE    
ALLOY
NO
TEMPER
THICKNESS
TENSILE
STRENGTH
(Mpa)
ELONGATION
(%)
ERICHSEN
(mm)
8011 O 0.095-0.130 85-105 ≥18 ≥6.0
8011 O 0.130-0.160 85-105 ≥19 ≥6.5
8011 O 0.160-0.200 85-105 ≥20 ≥6.8
8011 H22 0.100-0.130 100-130 ≥17 ≥6.0
8011 H22 0.130-0.160 100-130 ≥18 ≥6.2
8011 H22 0.160-0.200 100-130 ≥19 ≥6.5
8011 H24 0.100-0.130 115-140 ≥15 ≥5.5
8011 H24 0.130-0.160 115-140 ≥16 ≥6.0
TESTING  METHODS  GB/T228-2002  YS/T419-2000  
 

6.  COATING  PERFORMANCE

6.1 COATING STRUCTURE


HYDROPHILIC LAYER
ANTI-CORROSIVE LAYER
BASE MATERIAL
ANTI-CORROSIVE LAYER
HYDROPHILIC LAYER
 
6.2  COATING TYPES

(1) FILM WITH CORROSIVE RESISTANCE ORGANIC RESIN
 
(2) HYDROPHILIC FILM ORGANIC RESIN

6.3 COATING PERFORMANCE


SERIAL NO ITEMS TESTING METHODS RESULTS
1 SUPERFICIES AND
APPEARANCE
BY EYES GOLDEN, BLUE
BLACK
2 FILM THICKNESS CALCULATED FROM
WEIGHT OF FILM
2—3µm
3 ORIGINAL
HYDROPHILIDICY
TEST HYDROPHILICITY DIRECTLY ≥8mm
4 INITIAL
HYDROPHILICITY
DIP IN VAPORING OIL 3min (20±15)→VERTICAL
SITUATION 7min AT NORMAL TEMPERATURE→
210±10 DRY 2min →DIP IN PURE WATER 10min
→DRY 10min/CYCLE AT NORMAL TEMPERATURE, 
10CIRCLE→TEST HYDROPHILICITY.
≥6.0mm
5 SALT-SPRAYB RESISTANCE
JIS-Z-2371 (5%×35×72) JIS-Z-2371 (5%×35×72HOURS)
CONTINUOUS SALT SPRAY
≥R.NO9.5
6 HEAT RESISTANCE
A : 200  ×10MINS
B : 400  ×10MINS
A : NO CHANGES
B : TURNS LIGHT BROWN
7 OIL RESISTANCE DIP IN PRESS OIL 24HOURS→WASH IN FLOWING WATER→PEELTEST NO DELAMENATION
8 ADHEWSIVE FORCE
A. BENDING 180°
B. PEEL TEST
C. ERICHSEN VALUE=5MM
100% NO DELAMINATION
9 ODOR BY NOSE AFTER DIPPING IN WATER AND DRYING NATURALLY NO ODOR
7. 
7.1 SIZE AND TOLERANCE


THICKNESS WIDTH
SIZE TOLERANCE SIZE TOLERANCE
0.095-0.20 ±5% 150-1400 ±1

7.2 outer diameter of tube core and correspondence roll

UNIT : mm

Tube core material : Aluminum or steel 
Tube core inner diameter :  150, 152.4 , 200
correspondingφ150  φ152.4  φ200tube core,
roll maximum outer diameter : 
1200

8. SUPERFICIES AND APPEARANCE
 
1. CLEAN NO FISH TAILS FOLDING SCRATCH AND OTHER DEFAULTS.
2. NO ADHENSIVE THINGS ON THE SURFACE NO COLOR CHANGES.
3. FLAT SIDES SHOULD BE SMOOTH AND NO CRACKS ON SIDES.
4. NO APPARENT DIFFERENCE OF COLOR BETWEEN COILS OR BETWEEN LAYERS OF EACH COIL.


9. DEMANDS OF PACKAGE AND OTHERS
 
STANDARD EXPORTING PACKAGE USING FUMIGATED WOODEN PALLET.

10. STORAGE CONDITIONS WARE HOUSE FOR LONG-TIME STORAGE SHOULD MEET THE REQUIREMENTS AS IT FOLLOWS
 
1. CLEAN DRY HUMIDITY ≤65% NO CORROSIVE GAS.
2. ABLE TO PREVENT RAIN SNOW AND WATER FROM PERMEANCE.
3. NO OTHER CHEMICAL ACTIVE MATERIALS OR HUMID MATERIALS.

11. TAB THE TAB OF EACH COIL SHOULD INCLUDE THE CONTENTS AS IT FOLLOWS
 
1. PRODUCT NAME
2. ALLOY & TEMPER
3. PRODUCT SPECIFICATION
4. LOT NO
5. NET WEIGHT
6. PACKAGING DATE


12. QUALITY CERTIFICATE FOLLOWING CONTENTS SHOULD BE INDICATED IN QUALITY CERTIFICATE.
 
1. PRODUCT  NAME
2. ALLOY & TEMPER
3. SPECIFICATION
4. TENSILE  STRENGTH
5. ELONGATION
6. ERICHSEN
7. QUALITY OF COATING APPEARANCE AND PERFORMANCE 
8. LOT NO
9. NET WEIGHT

13. OTHERS THE ITEMS INCLUDED IN THE SPECIFICATION SHOULD BE OBSERVED BY TWO PARTIES ANY PROBLEM SHOULD BE SETTED BY NEGOTIATION.

 
14. PACKING






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