Block Steel Corp.

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Block Steel Aluminized Steel Products

Block Steel specializes in Aluminized Steel and is the country's largest aluminized distributor. We also stock Aluminized Stainless, Hot Dipped Galvanized, and distribute tubing. Block's inventory averages over 25,000 tons, which means we can fill almost all aluminized orders immediately.

ALUMINIZED STEEL INVENTORY (ASTM A463)

Coatings
Oz/Sq Ft

T1-40
.40
T1-25
.25
T1-13
.13
T1-60
.60

Type 2
.65

Gauges
.012 Through .146 = Manufactured Limit
Widths
Up to 60" Wide = Manufactured Limit
Grades
CS(A or B), DDS, EDDS, EDDS+, Structural, HSLA
Surface
Oiled, Dry, Chemical Treatment

Aluminized Steel (ASTM-A463) is hot-dip coated on both sides with an aluminum/silicon alloy coating. This steel has the surface characteristics of aluminum with the superior strength and lower cost of steel. It is produced with a soft, satin-like finish.

TYPE 1: Hot-dip coated with an aluminum/silicon alloy containing 5% to 11% silicon to promote better adherence. It is intended principally for heat resisting applications and also for uses where corrosion resistance and heat are involved. Possible end uses are mufflers, furnaces, ovens, ranges, heaters, water heaters, fireplaces, and baking pans.

TYPE 2: Hot-dip coated with commercially pure aluminum. It is intended principally for applications requiring atmospheric corrosion resistance. Type 2 may ultimately be manufactured into corrugated roofing and siding, grain bins, air conditioner housings and drying ovens.

ALUMINIZED TYPE 1 STAINLESS 409 AND 439: The coating is Type 1 Aluminized, containing approximately 91% aluminum and 9% silicon, that is metalurgically bonded to the stainless substrate. The aluminum coating significantly extends the life of a car exhaust system over that of bare stainless.

ALUMINIZED STEEL COATING WEIGHT
Total Coating on Both Sides
Coating Minimum/English
Oz/Sq Ft
Minimum/Metric
Grams/Sq M
T1-13 .13 40
T1-25 .25 76
T1-40 .40 122
T1-60 .60 182
Type 2 .65 184

ALUMINIZED STEEL TYPE 1
Typical Mechanical Properties
Grade
Yield
Tensile
Elong
R Val
CS
47ksi
56ksi
31%
--
DDS
31ksi
48ksi
40%
1.2
EDDS
29ksi
46ksi
42%
1.4
EDDS+
26ksi
45ksi
42%
1.7

ALUMINIZED GAUGE TABLE
Thickness & Weight Equivalents
Gauge
Thickness in Inches
Pounds Per Sq Ft
No.
Mean
Low
High
Type 1
Type 2
10
.138
.129
.147
5.598
5.571
11
.123
.114
.132
4.977
4.950
12
.108
.099
.117
4.365
4.338
13
.093
.085
.101
3.753
3.726
14
.079
.071
.087
3.182
3.115
15
.071
.065
.077
2.856
2.829
16
.064
.058
.070
2.570
2.543
17
.058
.053
.063
2.325
2.298
18
.052
.047
.057
2.081
2.053
19
.046
.041
.051
1.836
1.809
20
.040
.036
.044
1.591
1.564
21
.037
.033
.041
1.469
1.441
22
.034
.030
.038
1.346
1.319
23
.031
.027
.035
1.224
1.197
24
.028
.024
.032
1.101
1.074
25
.025
.021
.029
0.979
0.952
26
.022
.019
.025
0.857
0.829
27
.020
.017
.023
0.775
0.748
28
.019
.016
.022
0.764
0.707
29
.017
.014
.020
0.653
0.625
30
.016
.013
.019
0.612
0.585
 
     
 
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Block Steel FYI

Aluminized has superior performance compared to galvanized for resistance to atmospheric, salt spray and muffler condensate corrosion. (more)

 
     
   
     
   
     
   
     
Block Steel Corp.
6101 W. Oakton
Skokie, IL 60077 USA
p: 847-966-3000
f: 847-966-5906

ISO/TS 16949 Certified
Member: Metal Service Center Institute