NIPPON STEEL METAL PRODUCTS CO.,LTD.

language

Products 　

Home | PRODUCTS | BUILDING PRODUCTS | HOLLOW STRUTURAL SECTION Product Top

BUILDING PRODUCTS

hollow section

ASTM A 500


Standard | Tolerances | Packing | Marking | Inspection and Testing | Available size range | Section properties

HOLLOW STRUCTURAL SECTION ASTM A 500


ASTM A500 "Cold-Formed Welded and Seamless Carbon Steel Structural Tubing in Rounds and Shapes".

Mechanical properties and chemical composition

pdf

Tolerances

The tolerances on dimensions are established in accordance with ASTM A 500

Characteristics   Tolerances  
Outside dimensions   (H,B2.5in.) 0.020in. (0.5mm)
H : Longest side   (2.5in.H, B3.5in.) 0.025in. (0.6mm)
B : Shortest side   (3.5in.H, B5.5in.) 0.030in. (0.8mm)
    (5.5in.H, B) 1% in dimensions
Wall thickness(T)   10% in thickness  
Squareness of sides   902  
External corner radius(R)   R3T  
Twist   (H1.5in.) 0.050in./3feet length (1.3mm/1m length)
    (1.5in.H2.5in.) 0.062in./3feet length (1.6mm/1m length)
    (2.5in.H4.0in.) 0.075in./3feet length (1.9mm/1m length)
    (4.0in.H6.0in.) 0.087in./3feet length (2.2mm/1m length)
    (6.0in.H8.0in.) 0.100in./3feet length (2.5mm/1m length)
    (8.0in.H) 0.112in./3feet length (2.8mm/1m length)
Straightness   1/8 in./1 feet length (10.4mm/1m length)
Length(L)   0, +50mm (Private standard tolerance)
NOTE
1) The tolerance of outside dimensions includes an allowance for convexity or concavity.
2) Outside dimensions are measured across the flats at positions at least 2in. from the end of the HSS.

top

Packing

In bare bundle with steel band,or in bulk. Standard lengths are 24, 40 and 48 feet.


Marking

Each of the square and rectangular hollow sections shall be marked with the following information.
a)manufacturer's name b)specification designation c)grade letter d)dimension e)heat number


Inspection and Testing

ASTM A500 is subject to specific inspection and testing. The test method shall be in accordance with ASTM A 370, ASTM A 751.
If you need additional requirements, please consult us.

top

Available size rangeDimensions (in.-size)
Size (in.) Wall thickness (in.)
BWG#7 3/16 4/16 5/16 6/16 8/16 10/16 12/16 14/16

0.180

 0.188 0.250 0.313 0.375 0.500 0.625 0.750 0.875
Square Rectangular mm/mm 4.57 4.76 6.35 7.94 9.53 12.70 15.88 19.05 22.23
2.0x2.0   50.8x50.8            
2.5x2.5   63.5x63.5            
  3.0x2.0 76.2x50.8            
3.0x3.0   76.2x76.2        
  4.0x2.0 101.6x50.8            
3.5x3.5   88.9x88.9            
  4.0x3.0 101.6x76.2            
  5.0x2.0 127x50.8            
4.0x4.0   101.6x101.6      
  5.0x3.0 127x76.2        
  6.0x2.0 152.4x50.8            
4.5x4.5   114.3x114.3          
  6.0x3.0 152.4x76.2        
5.0x5.0   127x127      
  6.0x4.0 152.4x101.6      
6.0x6.0   152.4x152.4      
  7.0x5.0 177.8x127            
  8.0x4.0 203.2x101.6      
7.0x7.0   177.8x177.8      
  8.0x6.0 203.2x152.4      
  10x4.0 254x101.6            
8.0x8.0   203.2x203.2    
  10x6.0 254x152.4      
  12x4.0 304.8x101.6          
  10x8.0 254x203.2              
  12x6.0 304.8x152.4              
10x10   254x254      
  12x8.0 304.8x203.2          
  14x6.0 355.6x152.4            
12x12   304.8x304.8      
  14x10 355.6x254            
  16x8.0 406.4x203.2        
14x14   355.6x355.6      
  16x12 406.4x304.8          
16x16   406.4x406.4      
  20x12 508x304.8            
18x18   457.2x457.2          
  24x12 609.6x304.8            
20x20   508x508          
22x22   558.8x558.8              

GradeB available
GradeB to be Confirmed
GradeC available
If you require other sizes, please consult us.


Available size rangeDimensions (mm-size)
Size (mm) Wall thickness (mm)
Square Rectangular 1.6 2.0 2.3 2.5 3.0 3.2 4.0 4.5 5.0 6.0 6.3 8.0 9.0 10.0 12.0 12.5 16.0 19.0 22.0
  60x30                      
50x50                    
  60x40                      
  70x40                      
60x60                    
  75x45                  
  75x50                      
  100x40                      
75x75                
  100x50                  
80x80                
  125x40                      
  125x50                  
90x90                      
100x100          
  125x75            
  150x50                      
  150x75                    
  150x80                          
120x120                            
125x125            
  150x100            
150x150                  
  175x125                      
  200x100                
175x175                      
  200x150                    
  250x100                      
200x200                    
  225x175                                
  250x150                    
  300x100                          
  250x200                        
  300x150                        
250x250                      
  300x200                      
  350x150                        
300x300                      
  350x250                      
  400x200                        
350x350                          
  400x300                            
400x400                          
  500x300                              
450x450                          
  600x300                            
500x500                          
550x550                              

GradeB available
GradeC available
If you require other sizes, please consult us.

top
Section properties

pdf

Primer painted, Hot-dip zinc coated

pdf