My first Magazine ASTM A500 Tube

ASTM A500
ASTM A500 tube is a standard specification for cold-formed welded and seamless carbon steel structural tubing in round , square and rectangular shapes .
ASTM A500 covers cold-formed welded and seamless carbon steel round , square , rectangular , or special shape structural tubing for welded , riveted , or bolted construction of bridges and buildings , and for general structural purposes . This tubing shall be produced in both welded and seamless sizes and must have the chemical requirements of carbon , manganese , phosphorus , sulfur , and copper .
Chemical Requirements of ASTM A500uirements of ASTM A500
Composition , %
Grades A , B and D
Grace C
Element
Heat
Product
Heat
Product
Analysis
Analysis
Analysis
Analysis
Carbon , max
Manganese , max
Phosphorus , max
Sulfur , max
Copper , when copper steel is specified , min
0.26
0.30
0.23
0.27
...
...
1.35
1.40
0.035
0.045
0.035
0.045
0.035
0.045
0.035
0.045
0.20
0.18
0.20
0.18
Round Structural Tubing Grade Grade A Grade B Grade C Grade D
Tensile strength , mn , ps ( MPa ) 45 000
58 000
62 00
58 000
( 310 )
( 400 )
( 427 )
( 400 )
Yield strength , mn , psi ( MPa ) 33 000
42 000
46 000
36 000
( 228 )
( 290 )
( 317 )
( 250 )
Elongation in 2 in . ( 50.8 mm ), min , % A 25B 23C 21D 23C