Astm A500 RHS Pipe | Astm A500 Structural Tubing Dimensions, Astm A500 Structural Tubing, Structural Astm A500 Grade B
Reliant Pipes & Tubes Pvt. Ltd.

Astm A500 RHS Pipe | Astm A500 Structural Tubing Dimensions, Astm A500 Structural Tubing, Structural Astm A500 Grade B

Astm A500 RHS Pipe | Astm A500 Structural Tubing Dimensions, Astm A500 Structural Tubing, Structural Astm A500 Grade B

Astm A500 RHS Pipe | Astm A500 Structural Tubing Dimensions, Astm A500 Structural Tubing, Structural Astm A500 Grade B

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STRUCTURAL TUBING

Square and Rectangle Tubing ASTM A500 Grade A,B,C

Section Size: 2" x 2" to 12" x 12"
Wall Thickness: .120", .180", .188", .250", .313", .375", .500" 
Lengths: 20', 24', 40', 48', Customer Specific Lengths

Round Tubing ASTM A500 Grade A,B,C

Diameter: 2" to 12"
Wall Thickness: .120", .180", 188", .250", .313", .375", .500"
Lengths: 20', 24', 40', 48', Customer Specified Lengths

Primer Coated Tubing

Availlable in Red, Blue, Grey, and Customer Specified Colors

ASTM A500 TUBING

CHARACTERISTICS

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 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: .113 - .625 

Square

Type: HREW

  • Widths 2” – 20”      
  • Wall Thickness: .125 - .625

*Typically CREW is available in 065 GA and lighter and OD sizes 2” and under

FABRICATOR COLUMN LENGTHS

Rectangle

Type: HREW
  • Widths: 8" X 6" - 16" X 8" 
  • Wall Thicknes: .250 - .500
  • Lengths: 30', 34', 48' 

Square

Type: HREW

  • Widths: 8" - 12"   
  • Wall Thickness: .250 - .500
  • Lengths: 30', 34', 48'

 

 

 

TYPICAL CHEMICAL PROPERTIES

Grade B

Grade C

Carbon, Max %

0.260

0.230

Manganese, Max %

----

1.350

Phosphorus, Max %

0.035

0.035

Sulphur, Max %

0.035

0.035

Copper, when copper steel is

0.200

0.200

specified, Min %

 

 

 TYPICAL MECHANICAL PROPERTIES

Grade B

Grade C

Tensile Strength, Min psi

58,000

62,000

Yield Strength, Min psi

46,000

50,000

Elongation in 2” Min

23%*

21%**

*.180” wall and over

 

 

**.120” wall and over

 

 

A500 Carbon Steel Structural Tubing

Reliant Pipes offers A500 structural steel tubing in a range of sizes and shapes. The ASTM A500 specification covers cold-formed welded and seamless carbon steel tubing in round, square, rectangular, and “special” shapes for welded, riveted, or bolted construction applications, as well as for general structural purposes.

Request an eQuote or Contact Reliant Pipes today for more information.

The aspects of the ASTM A500 specification that are most important for our purposes include:

Manufacture

ASTM A500 spec states that welded tubing shall be made from flat-rolled steel using electric-resistance welding. Longitudinal butt joints of welded tubing shall be welded across its thickness in such a manner as to assure the structural design strength of the tubing section. Welded structural steel tubing is normally furnished without the removal of inside flash.

Chemical Requirements

Composition, %
Element Grades A, B and D Grace C
  Heat
Analysis
Product
Analysis
Heat
Analysis
Product
Analysis
Carbon, max
0.26 0.30 0.23 0.27
Manganese, max
... ... 1.35 1.40
Phosphorus, max
0.035 0.045 0.035 0.045
Sulfur, max
0.035 0.045 0.035 0.045
Copper, when copper steel
is specified, min
0.20 0.18 0.20 0.18

Tensile Requirements

Round Structural Tubing
  Grade A Grade B Grade C Grade D
Tensile strength, mn, ps (MPa)
45 000
(310)
58 000 
(400)
62 00
(427)
58 000
(400)
Yield strength, mn, psi (MPa)
33 000
(228)
42 000
(290)
46 000
(317)
36 000
(250)
Elongation in 2 in. (50.8 mm), min, %A
25B 23C 21D 23C

Shaped Structural Tubing
  Grade A Grade B Grade C Grade D
Tensile strength, mn, ps (MPa)
45 000
(310)
58 000 
(400)
62 00
(427)
58 000
(400)
Yield strength, mn, psi (MPa)
39 000
(269)
46 000
(317)
50 000
(345)
36 000
(250)
Elongation in 2 in. (50.8 mm), min, %A
25B 23C 21D 23C

Permissible Dimensional Variations

OUTSIDE DIMENSIONS

Outside diameter measurements must be made at positions at least 2” (50.8mm) from either end of the tubing.

For round structural tubing with nominal OD of 1.900” (48.26mm) and smaller, the outside diameter may not vary more than ±0.5%, rounded to the nearest 0.005” (0.13mm), of the specified size. For nominal ODs of 2” (50.8mm) and larger, outside diameter may not vary more than ±0.75%, rounded to the nearest 0.005”.

Square structural tubing and rectangular structural tubing must be measured across the flats and include an allowance for convexity or concavity. Specified dimensions shall not exceed the plus/minus allowances shown in the table below.

Outside Dimension Tolerances For Square and Rectangular Structural Tubing

Outside Large Flat Dimension, in. (mm) Large Flat Dimension Tolerance, A plus and minus, in. (mm)
2½ (63.5) or under
0.020 (0.51)
Over 2½ to 3½ (63.5 to 88.9), incl
0.025 (0.64)
Over 3½ to 5½, inc
0.030 (0.76)
Over 5½ (139.7) 0.01 times large flat dimension

WALL THICKNESS

Minimum wall thickness at any point of measurement shall not be less than 90% of specified nominal wall thickness. Maximum wall thickness, excluding weld seams, shall not be more than 110% of specified nominal wall thickness. Wall thickness of square structural tubing and rectangular structural tubing must be measured at the center of the flat.

STRAIGHTNESS

Permissible variation in straightness for structural tubing is 1/8” times the total length in feet (or 10.4mm times the number of meters) divided by five.

SIDE SQUARENESS

For square structural tubing and rectangular structural tubing, adjacent sides may deviate from 90° by no more than ±2°.

CORNER RADII

For square structural tubing and rectangular structural tubing, the radius of any one outside corner may not exceed three times (3x) the specified wall thickness.

TWIST

For square structural tubing and rectangular structural tubing, the tolerances for twist (variation with respect to axial alignment) are shown in the table below.

Twist Tolerances for Square and Rectangular Structural Tubing

Specified Dimension of Longest Side, in. (mm) Maximum Twist in the First 3 ft (1 m) and in each additional 3 ft
   in. mm
1½ (38.1) and under
0.050 1.39
Over 1½ to 2½ (38.1 to 63.5),incl
0.062 1.72
Over 2½ to 4 (63.5 to 101.6), incl
0.075 2.09
Over 4 to 6 (101.6 to 152.4), incl
0.087 2.42
Over 6 to 8 (152.4 to 203.2), incl
0.100 2.78
Over 8 (203)
0.112 3.11

Twist is measured in one of two ways: 1) By holding down one end of a square/rectangular tube on a flat surface, with the bottom side of the tube parallel to the surface plate of the two corners at the opposite end of the bottom side of the tube; or, 2) By measuring this difference on the heavier sections by a suitable measuring device. Difference in the height of the corners must not exceed the values in the table above.

Square and Rectangular Tubing ASTM A500 Sizes

Outside Dimension Nominal Wall Thickness/Gauge
Square Rectangle .120" .180" .188" .250" .313" .375" .500"
1-1/2" x 1-1/2"       X        
2" x 2"   X X X X      
2-1/2" x 2-1/2" 3" x 2" X X X X      
3" x 3" 4" x 2" X X X X      
3-1/2" x 3-1/2" 4" x 3", 5" x 2" X X X X      
4" x 4" 5" x 3", 6" x 2" X X X X      
  6" x 3"   X X X      
5" x 5" 6" x 4"   X X X X    
6" x 6" 8" x 4"   X X X X X  
7" x 7" 8" x 6"   X X X X X  
8" x 8" 10" x 6"   X X X X X  
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Astm A500 RHS Pipe | Astm A500 Structural Tubing Dimensions, Astm A500 Structural Tubing, Structural Astm A500 Grade B

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Astm A500 RHS Pipe | Astm A500 Structural Tubing Dimensions, Astm A500 Structural Tubing, Structural Astm A500 Grade B

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