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ASTM A1085 is a new HSS specification that covers cold-formed welded carbon hollow structural sections for welded or bolted applications. Independence Tube was instrumental with a handful of other HSS producers and the American Institute of Steel Construction (AISC) that developed this product for seismic and bridge applications.
Produced in round and square sizes, this new specification provides improved performance that makes HSS design easier and more efficient.
A comparison of A500 and ASTM A1085 and the differences:
|Manufacture Process||Cold-Formed Welded||Cold-Formed Welded|
|Thickness Range||t < 0.875"||0.148" - 0.875"|
Round - 42 ksi min
Shapes - 42 ksi min
50 ksi min
70 ksi max
Round - 58 ksi min
Shapes - 58 ksi min
|All Shapes - 65 ksi min|
|Wall Thickness||+/- 10%||+10% /- 5%|
|Corner Radii||No more than 3t max||
t ≤ 0.400 1.6t to 3.0t
t > 0.400 1.8t to 3.0t
|CVN||N/A||25 ft-lbs @ 40° F|
|Elongation, min in 2"||23%||21%|
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