ASTM A500 SQUARE TUBE

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HOLLOW STRUCTURAL SECTION ASTM A500

ASTMA500 SQUARE TUBE    ASTMA500 RECTANGULAR TUBE

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

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.

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.
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