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HSS (hollow structured sections) refers to a metal profile that is hollow and tubular. This hollow structural tube (or HSS) is used as a structural element in buildings, bridges and other structures, and in a wide variety of manufactured products. It's produced in round, square and rectangular shapes in a broad range of sizes and gauges.

HSS or hollow structural steel tubing has many benefits including:

  • Aesthetic appeal            
  • High strength-to-weight ratios
  • Uniform strength
  • Cost effectiveness
  • Recyclability 

ASTM A500 Tubing

Characteristics

ASTM A500 is a standard specification for cold-formed welded and seamless carbon steel structural tubing in round, square and rectangular shapes. ASTM A500 is the most common specification in North America for Hollow Structural Sections (HSS).

Applications

ASTM A500 applications include structural supports, building columns, highway signs, oil field services and communication towers.

Sizes

Rectangle

Type: HREW

Widths: Rectangles equivalent to 2” sq through 20”

Round

Type: HREW

OD: ¾” – 20” Wall Thickness: 0.113 - 0.625

Square

Type: HREW

Widths: 2” – 20”  Wall Thickness: 0.125 - 0.625

*** Above Tube length can be customerized

 Typical Mechanical Properties

Round Structural Tubing

 

Grade A

Grade B

Grade C

Grade D

Tensile Strength, Min psi

45000

58000

62000

58000

Yield Strength, Min psi

33000

42000

46000

36000

Elongation in 2” Min

0.25

0.23

0.21

0.23

Shaped Structural Tubing

 

Grade A

Grade B

Grade C

Grade D

Tensile Strength, Min psi

45000

58000

62000

58000

Yield Strength, Min psi

39000

46000

50000

36000

Elongation in 2” Min

0.25

0.23

0.21

0.23

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