Properties

Aluzinc® is a flat carbon steel product coated on both sides with an aluminium-zinc alloy. The coating is composed of 55% aluminium, 43.4% zinc and 1.6% silicon and applied by means of a continuous hot dip galvanising process. Aluzinc® is available in a wide range of steel grades: steels for cold forming and deep drawing applications, and structural steels. 

Advantages

The excellent corrosion resistance of Aluzinc® is a result of the properties of its two metallic constituents: the barrier effect of the aluminium present on the surface of the coating and the sacrificial protection of zinc.


The characteristic spangled silver colour of Aluzinc® gives it a very attractive appearance. Thanks to a thin transparent layer of aluminium oxide on the top surface of the coating, this appearance is preserved over time.


Aluzinc® offers additional advantages:

Applications

Aluzinc® coated steels are used widely in both indoor and outdoor applications:

 

Aluzinc® can be supplied oiled and/or with a chemical surface treatment, or with an Easyfilm® thin organic coating (please see data sheet E80 for the specific properties of Easyfilm®). DX56D AM FCE +AZHFX +Easyfilm® is suitable for standing seam applications in roofing and cladding.

 

Aluzinc® Florelis is a product with improved uniformity, with the result that there is no visible difference between the sheets. It is specially designed for facades of buildings with the highest aesthetic requirements.

Recommendations for use

Storage

Aluzinc® is supplied passivated or oiled to temporarily limit any risk of black rust formation. During transport and storage, all necessary precautions must be taken to keep the material dry and to prevent the formation of condensation. Improved protection can be obtained by the application of an Easyfilm® coating.

 

Forming and joining

The forming and joining techniques currently used for uncoated steel sheets are also suitable for Aluzinc®.
The coating thickness must therefore be compatible with both the desired degree of corrosion protection and the requirements of the forming and welding processes envisaged. Forming performance is improved if Aluzinc® is coated with an Easyfilm® thin organic coating.

 

Painting

Aluzinc® can be painted after degreasing and surface treatment when delivered oiled. Aluzinc® coated with an Easyfilm® thin organic coating can be painted directly, without any prior surface treatment. However, the paint must be compatible with the Easyfilm® resin.

Weldability

In electrical resistance welding, the welding current must be suitably regulated and regularly adjusted. Electrode life can be extended by regularly stepping up the welding current and periodically dressing (machining) the electrodes.

Coating weight and typical thickness

Aluzinc® Coating weight - double sided (g/m)Coating thickness (m per side)
AZ10010013
AZ15015020
AZ16516523
AZ18518525
AZ20020026

Brand correspondence

 
Steels for cold forming and deep drawing applications
 ASTM A792EN 10215:1995EN 10326:2004EN 10327:2004EN 10292:2007EN 10346:2009EN 10346:2015Old brand names
DX51D +AZ EN 10346 CSDX51D+AZ DX51D+AZ DX51D+AZDX51D+AZAC2
DX51D AM FCE +AZFlorelis +Easyfilm®         
DX52D +AZ EN 10346 FSDX52D+AZ DX52D+AZ DX52D+AZDX52D+AZAC3
DX53D +AZ EN 10346  DX53D+AZ DX53D+AZ DX53D+AZDX53D+AZ(AC4)
DX54D +AZ EN 10346 DSDX54D+AZ DX54D+AZ DX54D+AZDX54D+AZAC5
DX54D AM FCE +AZHFX +Easyfilm®         
DX56D +AZ EN 10346       DX56D +AZDX56D AM FCE +AZ
DX56D AM FCE +AZHFX +Easyfilm®         
Grades in italics: not included in the standard
 
Structural steels
 ASTM A792EN 10215:1995EN 10326:2004EN 10327:2004EN 10292:2007EN 10346:2009EN 10346:2015Old brand names
S220GD +AZ EN 10346   S220GD+AZ  S220GD+AZS220GD+AZ 
S220GD +AZ AM FCE +AZFlorelis +Easyfilm®         
S250GD +AZ EN 10346 SS Grade 255 (37)S250GD+AZS250GD+AZ  S250GD+AZS250GD+AZAC250
S250GD +AZ AM FCE +AZFlorelis +Easyfilm®         
S280GD +AZ EN 10346 SS Grade 275 (40)S280GD+AZS280GD+AZ  S280GD+AZS280GD+AZAC280
S280GD +AZ AM FCE +AZFlorelis +Easyfilm®         
S320GD +AZ EN 10346  S320GD+AZS320GD+AZ  S320GD+AZS320GD+AZAC320
S320GD +AZ AM FCE +AZFlorelis +Easyfilm®         
S350GD +AZ EN 10346 SS Grade 340 (50)S350GD+AZS350GD+AZ  S350GD+AZS350GD+AZAC350
S550GD +AZ EN 10346 SS Grade 550 (80)S550GD+AZS550GD+AZ  S550GD+AZS550GD+AZAC550
Grades in italics: not included in the standard
 
High strength interstitial free steels
 ASTM A792EN 10215:1995EN 10326:2004EN 10327:2004EN 10292:2007EN 10346:2009EN 10346:2015Old brand names
HX220YD +AZ EN 10346     HX220YD+AZHX220YD+AZHX220YD+AZ 
 
High Strength Low Alloy steels
 ASTM A792EN 10215:1995EN 10326:2004EN 10327:2004EN 10292:2007EN 10346:2009EN 10346:2015Old brand names
HX260LAD +AZ EN 10346     HX260LAD+AZHX260LAD+AZHX260LAD+AZAC250NB
HX300LAD +AZ EN 10346     HX300LAD+AZHX300LAD+AZHX300LAD+AZAC280NB
HX340LAD +AZ EN 10346     HX340LAD+AZHX340LAD+AZHX340LAD+AZAC320NB
HX380LAD +AZ EN 10346     HX380LAD+AZHX380LAD+AZHX380LAD+AZAC380
HX420LAD +AZ EN 10346     HX420LAD+AZHX420LAD+AZHX420LAD+AZAC420
() Closest grade as no fully equivalent grade exists.

Dimensions

Steels for cold forming and deep drawing applications

Thickness (mm)Min widthDX51D +AZ EN 10346DX51D AM FCE +AZFlorelis +Easyfilm®DX52D +AZ EN 10346, DX53D +AZ EN 10346, DX54D +AZ EN 10346, DX54D AM FCE +AZHFX +Easyfilm®, DX56D +AZ EN 10346, DX56D AM FCE +AZHFX +Easyfilm®
Max widthMax widthMax width
0.20 ≤ th < 0.257001000--
0.25 ≤ th < 0.301200
0.30 ≤ th < 0.361350
0.36 ≤ th < 0.6015001400
0.60 ≤ th < 0.701500
0.70 ≤ th < 1.201500
1.20 ≤ th < 2.00-

U V

Structural steels

Thickness (mm)Min widthS220GD +AZ EN 10346, S250GD +AZ EN 10346, S280GD +AZ EN 10346S220GD +AZ AM FCE +AZFlorelis +Easyfilm®, S250GD +AZ AM FCE +AZFlorelis +Easyfilm®, S280GD +AZ AM FCE +AZFlorelis +Easyfilm®S320GD +AZ EN 10346, S350GD +AZ EN 10346S320GD +AZ AM FCE +AZFlorelis +Easyfilm®S550GD +AZ EN 10346
Max widthMax widthMax widthMax widthMax width
0.20 ≤ th < 0.257001000---1000
0.25 ≤ th < 0.3012001100
0.30 ≤ th < 0.36135012501250
0.36 ≤ th < 0.4615001350
0.46 ≤ th < 0.601450
0.60 ≤ th < 1.00150015001250-
1.00 ≤ th < 1.20-
1.20 ≤ th < 2.00-

U V

High strength interstitial free steels

Thickness (mm)Min widthHX220YD +AZ EN 10346
Max width
0.36 ≤ th < 0.467001250
0.46 ≤ th < 0.701400
0.70 ≤ th < 2.001500

U V

High Strength Low Alloy steels

Thickness (mm)Min widthHX260LAD +AZ EN 10346, HX380LAD +AZ EN 10346, HX420LAD +AZ EN 10346HX300LAD +AZ EN 10346, HX340LAD +AZ EN 10346
Max widthMax width
0.30 ≤ th < 0.36700-1350
0.36 ≤ th < 0.4612501500
0.46 ≤ th < 0.701400
0.70 ≤ th < 2.001500

U V

Mechanical properties

Steels for cold forming and deep drawing applications
 
Notes
Direction
Thickness (mm)
Re (MPa)
Rm (MPa)
A80 (%)
Bending ratio (th)
r 90
n 90
DX51D +AZ EN 10346 T0.2 - 0.35-270 - 500≥ 15---
0.35 - 0.5≥ 18
0.5 - 0.7≥ 20
0.7 - 2≥ 22
DX51D AM FCE +AZFlorelis +Easyfilm® L< 1.2---< 0--
T< 0.6---< 0--
0.6 - 1.2≥ 140270 - 500≥ 22
DX52D +AZ EN 103461T0.35 - 0.5140 - 300270 - 420≥ 22---
0.5 - 0.7≥ 24
0.7 - 2≥ 26
DX53D +AZ EN 10346 T0.35 - 0.5140 - 260270 - 380≥ 26---
0.5 - 0.7≥ 28
0.7 - 2≥ 30
DX54D +AZ EN 10346 T0.35 - 0.5120 - 220260 - 350≥ 32---
0.5 - 0.7≥ 34
0.7 - 2≥ 36
DX54D AM FCE +AZHFX +Easyfilm® L< 2---< 0--
T< 0.2---< 0--
0.2 - 0.7120 - 220260 - 350≥ 34≥ 1.4≥ 0.180
0.7 - 2≥ 36
DX56D +AZ EN 10346 L< 2---< 0--
T0.35 - 0.5120 - 180260 - 350≥ 35< 0≥ 1.3≥ 0.200
0.5 - 0.7≥ 37≥ 1.5
0.7 - 2≥ 39≥ 1.7
DX56D AM FCE +AZHFX +Easyfilm® T0.2 - 0.7120 - 180260 - 350≥ 37-≥ 1.5≥ 0.200
0.7 - 2≥ 39≥ 1.7
Grades in italics: not included in the standard
1. For DX52D +AZ EN 10346 the Re-value only applies to skin-passed products (surface qualities B and C).
Structural steels
 
Notes
Direction
Thickness (mm)
Re (MPa)
Rm (MPa)
A80 (%)
Bending ratio (th)
r 90
n 90
S220GD +AZ EN 10346 L0.2 - 0.35≥ 220≥ 300≥ 13< 0--
0.35 - 0.5≥ 16
0.5 - 0.7≥ 18
0.7 - 2≥ 20
T< 2---< 0--
S220GD +AZ AM FCE +AZFlorelis +Easyfilm® L0.6 - 0.7≥ 220≥ 300≥ 18---
0.7 - 1.2≥ 20
S250GD +AZ EN 10346 L0.2 - 0.35≥ 250≥ 330≥ 12---
0.35 - 0.5≥ 15
0.5 - 0.7≥ 17
0.7 - 2≥ 19
S250GD +AZ AM FCE +AZFlorelis +Easyfilm® L0.6 - 0.7≥ 250≥ 330≥ 17---
0.7 - 1.2≥ 19
S280GD +AZ EN 10346 L0.2 - 0.35≥ 280≥ 360≥ 11---
0.35 - 0.5≥ 14
0.5 - 0.7≥ 16
0.7 - 2≥ 18
S280GD +AZ AM FCE +AZFlorelis +Easyfilm® L0.6 - 0.7≥ 280≥ 330≥ 16---
0.7 - 1.2≥ 18
S320GD +AZ EN 10346 L0.3 - 0.5≥ 320≥ 390≥ 13---
0.5 - 0.7≥ 15
0.7 - 2≥ 17
S320GD +AZ AM FCE +AZFlorelis +Easyfilm® L0.6 - 0.7≥ 320≥ 390≥ 15---
0.7 - 1≥ 17
S350GD +AZ EN 10346 L0.3 - 0.5≥ 350≥ 420≥ 12---
0.5 - 0.7≥ 14
0.7 - 2≥ 16
S550GD +AZ EN 10346 L0.2 - 0.55≥ 550≥ 560----
Grades in italics: not included in the standard
High strength interstitial free steels
 
Notes
Direction
Thickness (mm)
Re (MPa)
Rm (MPa)
A80 (%)
Bending ratio (th)
r 90
n 90
HX220YD +AZ EN 10346 L< 3---< 0--
T0.35 - 0.5220 - 280340 - 410≥ 28< 0≥ 0.9≥ 0.140
0.5 - 0.7≥ 30≥ 1.1≥ 0.160
0.7 - 1.5≥ 1.3≥ 0.170
1.5 - 2≥ 1.1
High Strength Low Alloy steels
 
Notes
Direction
Thickness (mm)
Re (MPa)
Rm (MPa)
A80 (%)
Bending ratio (th)
r 90
n 90
HX260LAD +AZ EN 10346 T0.35 - 0.5260 - 330350 - 430≥ 20---
0.5 - 0.7≥ 22
0.7 - 2≥ 24
HX300LAD +AZ EN 10346 T0.35 - 0.5300 - 380380 - 480≥ 17---
0.5 - 0.7≥ 19
0.7 - 2≥ 21
HX340LAD +AZ EN 10346 T0.35 - 0.5340 - 420410 - 510≥ 15---
0.5 - 0.7≥ 17
0.7 - 2≥ 19
HX380LAD +AZ EN 10346 T0.35 - 0.5380 - 480440 - 560≥ 13---
0.5 - 0.7≥ 15
0.7 - 2≥ 17
HX420LAD +AZ EN 10346 T0.35 - 0.5420 - 520470 - 590≥ 11---
0.5 - 0.7≥ 13
0.7 - 2≥ 15


Chemical composition

 
Steels for cold forming and deep drawing applications
 
C (%)
Mn (%)
P (%)
S (%)
Si (%)
Al (%)
Nb (%)
Ti (%)
DX51D +AZ EN 10346 ≤ 0.180 ≤ 1.20 ≤ 0.120 ≤ 0.045 ≤ 0.50 - - ≤ 0.300
DX51D AM FCE +AZFlorelis +Easyfilm® ≤ 0.180 ≤ 1.20 ≤ 0.120 ≤ 0.045 ≤ 0.50 - - ≤ 0.300
DX52D +AZ EN 10346 ≤ 0.120 ≤ 0.60 ≤ 0.100 ≤ 0.045 ≤ 0.50 - - ≤ 0.300
DX53D +AZ EN 10346 ≤ 0.120 ≤ 0.60 ≤ 0.100 ≤ 0.045 ≤ 0.50 - - ≤ 0.300
DX54D +AZ EN 10346 ≤ 0.120 ≤ 0.60 ≤ 0.100 ≤ 0.045 ≤ 0.50 - - ≤ 0.300
DX54D AM FCE +AZHFX +Easyfilm® ≤ 0.120 ≤ 0.60 ≤ 0.100 ≤ 0.045 ≤ 0.50 - - ≤ 0.300
DX56D +AZ EN 10346 ≤ 0.120 ≤ 0.60 ≤ 0.100 ≤ 0.045 ≤ 0.50 - - ≤ 0.300
DX56D AM FCE +AZHFX +Easyfilm® ≤ 0.120 ≤ 0.60 ≤ 0.100 ≤ 0.045 ≤ 0.50 - - ≤ 0.300
Grades in italics: not included in the standard
 
Structural steels
 
C (%)
Mn (%)
P (%)
S (%)
Si (%)
Al (%)
Nb (%)
Ti (%)
S220GD +AZ EN 10346 ≤ 0.200 ≤ 1.70 ≤ 0.100 ≤ 0.045 ≤ 0.60 - - -
S220GD +AZ AM FCE +AZFlorelis +Easyfilm® ≤ 0.200 ≤ 1.70 ≤ 0.100 ≤ 0.045 ≤ 0.60 - - -
S250GD +AZ EN 10346 ≤ 0.200 ≤ 1.70 ≤ 0.100 ≤ 0.045 ≤ 0.60 - - -
S250GD +AZ AM FCE +AZFlorelis +Easyfilm® ≤ 0.200 ≤ 1.70 ≤ 0.100 ≤ 0.045 ≤ 0.60 - - -
S280GD +AZ EN 10346 ≤ 0.200 ≤ 1.70 ≤ 0.100 ≤ 0.045 ≤ 0.60 - - -
S280GD +AZ AM FCE +AZFlorelis +Easyfilm® ≤ 0.200 ≤ 1.70 ≤ 0.100 ≤ 0.045 ≤ 0.60 - - -
S320GD +AZ EN 10346 ≤ 0.200 ≤ 1.70 ≤ 0.100 ≤ 0.045 ≤ 0.60 - - -
S320GD +AZ AM FCE +AZFlorelis +Easyfilm® ≤ 0.200 ≤ 1.70 ≤ 0.100 ≤ 0.045 ≤ 0.60 - - -
S350GD +AZ EN 10346 ≤ 0.200 ≤ 1.70 ≤ 0.100 ≤ 0.045 ≤ 0.60 - - -
S550GD +AZ EN 10346 ≤ 0.200 ≤ 1.70 ≤ 0.100 ≤ 0.045 ≤ 0.60 - - -
Grades in italics: not included in the standard
 
High strength interstitial free steels
 
C (%)
Mn (%)
P (%)
S (%)
Si (%)
Al (%)
Nb (%)
Ti (%)
HX220YD +AZ EN 10346 ≤ 0.010 ≤ 0.90 ≤ 0.080 ≤ 0.025 ≤ 0.20 ≥ 0.015 ≤ 0.090 ≤ 0.120
 
High Strength Low Alloy steels
 
C (%)
Mn (%)
P (%)
S (%)
Si (%)
Al (%)
Nb (%)
Ti (%)
HX260LAD +AZ EN 10346 ≤ 0.110 ≤ 1.00 ≤ 0.030 ≤ 0.025 ≤ 0.50 ≥ 0.015 ≤ 0.090 ≤ 0.150
HX300LAD +AZ EN 10346 ≤ 0.120 ≤ 1.40 ≤ 0.030 ≤ 0.025 ≤ 0.50 ≥ 0.015 ≤ 0.090 ≤ 0.150
HX340LAD +AZ EN 10346 ≤ 0.120 ≤ 1.40 ≤ 0.030 ≤ 0.025 ≤ 0.50 ≥ 0.015 ≤ 0.100 ≤ 0.150
HX380LAD +AZ EN 10346 ≤ 0.120 ≤ 1.50 ≤ 0.030 ≤ 0.025 ≤ 0.50 ≥ 0.015 ≤ 0.100 ≤ 0.150
HX420LAD +AZ EN 10346 ≤ 0.120 ≤ 1.60 ≤ 0.030 ≤ 0.025 ≤ 0.50 ≥ 0.015 ≤ 0.100 ≤ 0.150


For commercial information (quotations, deliveries, product availability):

For technical questions about these products: flateurope.technical.assistance@arcelormittal.com


All details provided in the ArcelorMittal Flat Carbon Europe S.A. catalogue are for information purposes only. ArcelorMittal Flat Carbon Europe S.A. reserves the right to change its product range at any time without prior notice.