ASTM A-554 Specifications
Tubing Size Range
Round Squares Rectangles
Elliptical Flat Oval Special Shapes



Round              
Size
22ga
20ga
18ga
16ga
14ga
12ga
11ga
.500"    
.619"    
.625"    
.687"  
.750"  
.840"
.854"
.866"
.875"
.937"
.940"
1.000"
1.030"
1.035"
1.060"
1.062"
1.070"
1.080"
1.121"
1.125"
1.187"
1.250"
1.312"
1.375"
1.490"
1.500"
1.625"  
1.750"  
1.875"  
1.900"  
2.000"  
2.080"    
2.250"    
2.375"    
2.500"    
2.562"    
3.000"    
4.000"      
5.000"      



Squares              
Size
22ga
20ga
18ga
16ga
14ga
12ga
11ga
.375"        
.496"          
.500"        
.625"      
.725"          
.730"            
.750"  
.835"          
.860"            
.875"        
1.000"  
1.125"    
1.250"  
1.375"    
1.500"        
1.625"    
1.750"    
1.875"    
2.000"    
3 "      
4 "        



Rectangles              
Size
22ga
20ga
18ga
16ga
14ga
12ga
11ga
.244" x .944"            
.250" x .500"        
.250" x 1.000"            
.250" x 2.000"          
.308" x .995"            
.308" x 1.497"            
.312" x .500"            
.312" x 1.500"      
.315" x 1.382"            
.322" x .885"            
.370" x 1.365"            
.375" x .500"            
.375" x .625"            
.375" x .750"        
.375" x .875"          
.375" x 1.000"        
.375" x 1.125"        
.375" x 1.375"            
.375" x 1.500"      
.375" x 2.000"          
.385" x .885"            
.390" x 1.015"            
.394" x .984"            
.394" x 1.185"            
.500" x .375"            
.500" x .625"          
.500" x .750"      
.500" x .875"            
.500" x 1.000"    
.500"