a500-square-tubing

ASTM A500 Square Steel

PropertyDetails
StandardASTM A500
MaterialCarbon Steel
ShapeSquare Tube
GradesGrade A, B, C, D
Manufacturing ProcessCold-Formed, Welded & Seamless
Size Range20 x 20 mm to 400 x 400 mm
ASTM A500 Grade B square tubes, some sizes include 120 x 120 x 8 mm and 140 x 140 x 5 mm
Wall Thickness0.065” to 0.625”
LengthCustom or Standard (20 ft, 40 ft, etc.)
Surface FinishBlack, Galvanized, Bare, or Coated
ApplicationsStructural support, Frames, Construction, Infrastructure, Machinery
Category:

Description

ASTM A500 Square Steel Tube

ASTM A500 Square Steel Tube is cold-formed, welded carbon steel structural tubing designed for construction and mechanical applications. These tubes offer superior strength, durability, and uniformity, making them ideal for load-bearing structures, bridges, infrastructure, and industrial frameworks.

ASTM A500 Grade B Square Tube Dimensions

Size (mm)kg/mSize (mm)kg/m
20 x 20 x 2.01.1220 x 20 x 2.51.35
25 x 25 x 1.51.0625 x 25 x 2.01.43
25 X 25 X 2.51.7425 X 25 X 3.02.04
30 X 30 X 2.01.6830 X 30 X 2.52.14
30 X 30 X 3.02.5140 x 40 x 1.51.81
40 x 40 x 2.02.3140 x 40 x 2.52.92
40 x 40 x 3.03.4540 x 40 x 4.04.46
40 x 40 x 5.05.450 x 50 x 1.52.28
50 x 50 x 2.02.9350 x 50 x 2.53.71
50 x 50 x 3.04.3950 x 50 x 4.05.72
50 x 50 x 5.06.9760 x 60 x 3.05.34
60 x 60 x 4.06.9760 x 60 x 5.08.54
60 x 60 x 6.09.4570 x 70 x 3.06.28
70 x 70 x 3.67.4670 x 70 x 5.010.11
70 x 70 x 6.312.570 x 70 x 815.3
75 x 75 x 3.07.0780 x 80 x 3.07.22
80 x 80 x 3.68.5980 x 80 x 5.011.7
80 x 80 x 6.013.990 x 90 x 3.08.01
90 x 90 x 3.69.7290 x 90 x 5.013.3
90 x 90 x 6.015.7690 x 90 x 8.020.4
100 x 100 x 3.08.96100 x 100 x 4.012
100 x 100 x 5.014.8100 x 100 x 5.014.8
100 x 100 x 6.016.19100 x 100 x 8.022.9
100 x 100 x 1027.9120 x 120 x 518
120 x 120 x 6.021.3120 X 120 X 6.322.3
120 x 120 x 8.027.9120 x 120 x 1034.2
120 X 120 X 1235.8120 X 120 X 12.541.6
140 X 140 X 5.021.1140 X 140 X 6.326.3
140 X 140 X 832.9140 X 140 X 1040.4
140 X 140 X 12.549.5150 X 150 X 5.022.7
150 X 150 X 6.328.3150 X 150 X 8.035.4
150 X 150 X 1043.6150 X 150 X 12.553.4
150 X 150 X 1666.4150 X 150 X 1666.4
180 X 180 X 527.4180 X 180 X 6.334.2
180 X 180 X 843180 X 180 X 1053
180 X 180 X 12.565.2180 X 180 X 1681.4
200 X 200 X 530.5200 X 200 X 635.8
200 x 200 x 6.338.2200 x 200 x 848
200 x 200 x 1059.3200 x 200 x 12.573
200 x 200 x 1691.5250 x 250 x 6.348.1
250 x 250 x 860.5250 x 250 x 1075
250 x 250 x 12.592.6250 x 250 x 16117
300 x 300 x 6.357.9300 x 300 x 873.1
300 x 300 x 1057.9300 x 300 x 890.7
300 x 300 x 12.5112300 x 300 x 16142
350 x 350 x 885.7350 x 350 x 10106
350 x 350 x 12.5132350 x 350 x 16167
400 x 400 x 10122400 x 400 x 12141
400 x 400 x 12.5mm152400 x 400 x 16192

ASTM A500 Grade A, B, C, D Chemical Composition

Element Grade A (%) Grade B (%) Grade C (%) Grade D (%)
Carbon (C) 0.26 max 0.26 max 0.23 max 0.23 max
Manganese (Mn) 1.35 max 1.35 max 1.35 max 1.35 max
Phosphorus (P) 0.035 max 0.035 max 0.035 max 0.035 max
Sulfur (S) 0.035 max 0.035 max 0.035 max 0.035 max

ASTM A500 Grade A, B, C, D Mechanical Properties

Property Grade A Grade B Grade C Grade D
Yield Strength (min) 228 MPa (33 ksi) 290 MPa (42 ksi) 317 MPa (46 ksi) 345 MPa (50 ksi)
Tensile Strength (min) 400 MPa (58 ksi) 400 MPa (58 ksi) 427 MPa (62 ksi) 448 MPa (65 ksi)
Elongation (%) 25 23 21 20

A500 Square Steel Tube Available Grades:

  • Grade A – Minimum Yield Strength: 39,000 psi (269 MPa)
  • Grade B – Minimum Yield Strength: 46,000 psi (317 MPa)
  • Grade C – Minimum Yield Strength: 50,000 psi (345 MPa)
  • Grade D – Minimum Yield Strength: 50,000 psi (345 MPa) (For Round Sections Only)

Applications

  1. Construction and Structural Engineering
  2. Mechanical and Industrial Use
  3. Transportation and Automotive
  4. Furniture and Architectural Applications

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