Common Materials

ASTM A653 GALVANIZED CARBON SHEET

These sheets are produced from rimmed, cast, capped, or semi-killed steel, and are intended for uses involving simple bending or moderate forming. They may be bent flat on themselves in any direction at room temperature without cracking. The zinc coating will withstand bending without flaking when tested in accordance with ASTM A653. The coating is applied by the continuous hot-dip process, producing a tight coat of prime spelter of the 1.25 oz.-per-square-foot coating class. Sheets meet the commercial quality requirements of ASTM A653. Gauges 16 and lighter are available as lock-forming quality, conforming to ASTM A653.

American Specifications:   ASTM A653

Applications:   These sheets are for general utility uses such as corrugated siding and roofing, culverts, window frames, heating and ventilating ducting, cornices, and eaves troughs. Galvanized sheets are sometimes painted, but when a superior paint retaining surface is desired, we recommend the use of electrolytic zinc coated sheets. (Jetcoat)

Size Range:   30 ga - 10 ga

Typical Chemical Analysis:  
C .15 max
Mn .60 max
P .035 max
S .04 max
Typical Mechanical Properties:  
  Regular Galvanized Commercial Quality Drawing Quality Commercial Quality Extra Smooth Drawing Quality
Tensile strength 45-57 42-50 46-58 43-51
Yield point 35-49 25-38 37-51 29-42
Elongation 23-37 33-43 20-35 30-38
Rockwell RB50-RB65 RB45-RB58 RB56-RB72 RB50-RB62

Weldability:   Yes

Size & Weight Table:


Flat Galvanized Sheet 		 
Gauge Lb/ft²
   
30 Ga. (.016" ) .656
28 Ga. (.019" ) .781
26 Ga. (.022" ) .906
24 Ga. (.028" ) 1.156
22 Ga. (.034" ) 1.406
20 Ga. (.040" ) 1.656
18 Ga. (.052" ) 2.156
16 Ga. (.064" ) 2.656
14 Ga. (.079") 3.281
12 Ga. (.108") 4.531
11 Ga. (.123") 5.156
10 Ga. (.138") 5.781