Comparison of ASTM A500 Round vs. A53 Pipe
(FOR STRUCTURAL APPLICATIONS)

 

ASTM A500-01a

 ASTM A53/A53M-01
Description:
(per ASTM)		 Standard Specificaion for Cold-Formed Welded and Seamless Carbon Steel Structural Tubing in Rounds and Shapes. Standard Specification for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and Seamless.
Intended Use:
(per ASTM)		 Welded, riveted or bolted construction of bridges and buildings, and for general structural purposes. Mechanical and pressure applications and is also acceptable for ordinary uses in steam, water, gas and air lines.

 

Advantages of A500 Round (HSS)

  • A product specifically designed for construction and structural applications.
  • Produced to tighter tolerances (O.D., wall, straightness).
  • Readily weldable by conventional methods both in the shop or in the field.
  • Superior surface finish (bare-no mill laquer coating applied).
  • Higher strength to weight ratio.
  • Broader variety of O.D. sizes and gauges.
  • Readily available on two-three week rolling cycle.
  • Specific lengths available from production 20' to 74'.

Technical Information

Specification:

A500

 A53
Strength Levels: Grade B Types E and S Grade A

Yield Strength Min.
Tensile Strength Min.
Elongation % Min.

42,000 PSI
58,000 PSI
23

30,000 PSI
48,000 PSI
Varies
Strength Levels: Grade C Types E and S Grade B
Yield Strength Min.
Tensile Strength Min.
Elongation % Min.

46,000 PSI
62,000 PSI
21

35,000 PSI
60,000 PSI
Varies
   
Lengths: Atlas Tube produces lengths up to 74' Single random lengths (16'-24')
or doulbe random lengths (36'-46')
 
Tolerances:
O.D. Size
Wall Thickness
Chemistry

+/- .75%
+/- 10%
low C, Mn, P, S and residual elements for superior weldability.

+/- 1%
- 12.5%
higher C, Mn, P, S and residual elements that could impact weldability.
Size Availability: 28 different sizes available in range from 1.900" O.D. to 16.000" O.D. A53 lists 13 different sizes available from 1.900" O.D. to 16.000" O.D.
 
Guage Availability: Standard guages available through Atlas Tube are .125", .188", .250", .313", .375", .438", .500" and .625" as well as all the nominal pipe guages. A variety of guages are available. Some of the heavier sections are only available as a seamless product.
 
Straightness: 1/8" X length (in feet) divided by five. Not specified.