J.D.Steel Corporation
   
ALUZINC STEEL    
 We offer Aluzinc in 2 types
 
Type 1   Type 2
     
Aluminium 55% and Zinc 45%. This material is little Expesive but give very good heat reflection and rust prevention.
 
Aluminium 45% and Zinc 55%. This material is Cheaper then Type 1. Heat reflection is 9.5% less then Type 1 & Rust prevention is 12.5% less. But is better Hot Dip Galvanize steel. Rust 1.8 times and Heat Reflection 6.8 times.
     
 Zinc Coating Weight Symbol  AZ 06   AZ08  AZ 13  AZ 12  AZ 18  AZ 20  AZ 22  AZ 26  AZ 27
 Zinc Coating Thickness (mm)  0.013  0.017  0.021  0.026  0.034  0.04  0.043  0.049  0.054
 Weight g/㎡ (both sides)  90  120  125  183  244  285  305  345  381
 ASTM A 525  G-30    G-40  G-60    G-90      G-115
     
 Surface Treatment:    Surface Finished :
 
Chromate treatment,Oiled or Anti-finger print
  REGULAR SPANGLE:
 
Regular spangle is also called normal spangle which is naturally formed without any additional treatment during galvanizing.
    MINI SPANGLE:
 
The spangle is restrained and formed as mini spangle by reducing the lead content in the zinc liquid or by blowing the zinc powder from the equipment installed on the zinc pot.
  Zero Spangle :
 
The mini spangle is further skin-passed to produce the Zero Spangle surface
Grades offered
 Q/BQB 425-2004  AS
1397-2001
 EN
10215-1995
 ASTM
A792M-02
 JIS G 3321:1998  ISO
9364-2001
 DC51D+AZ  G2+AZ  DX51D+AZ  CS type B、type C  SGLCC  1
 DC52D+AZ  G3+AZ  DX52D+AZ  DS  SGLCD  2
 S250GD+AZ  G250+AZ  S250GD+AZ  255  —  250
 S300GD+AZ  G300+AZ  —  —  —  —
 S350GD+AZ  G350+AZ  S350GD+AZ  345 Class1  SGLC490  350
 S550GD+AZ  G550+AZ  S550GD+AZ  550  SGLC570  550
     
   Yield  Strength  Tensile  Strength  Re  Elongation  A80 %  
Designation  Re  N/mm²  
Steel Grade  Symbol  for the  Type of  Hot-Dip  Coating  N/mm²    
Steel Name  Steel  Number      
Cold Forming Quality  DX51D  1.0226  +AZ  -  Max.500  Min.22
 DX51D  1.0226  +AZ
 DX52D  1.0350  +AZ  Max.300  Max.420  Min.26
 DX52D  1.0350  +AZ
 DX53D  1.0355  +AZ  Max.260  Max.380  Max.30
 DX53D  1.0355  +AZ
 DX54D  1.0306  +AZ  Max.220  Max.350  Max.36
 DX54D  1.0306  +AZ
 Structural Quality  S220GD  1.0241  +AZ  Min.220  Min.300  Min.20
 S220GD  1.0241  +AZ
 S250GD  1.0242  +AZ  Min.250  Min.330  Min.19
 S250GD  1.0242  +AZ
 S280GD  1.0244  +AZ  Min.280  Min.360  Min.18
 S280GD  1.0244  +AZ
 S320GD  1.0250  +AZ  Min.320  Min.390  Min.17
 S320GD  1.0250  +AZ
 S350GD  1.0529  +AZ  Min.350   Min.420  Min.16
 S350GD  1.0529  +AZ
 S550GD  1.0531  +AZ  Min.550  Min.560  -
 S550GD  1.0531  +AZ