What is ASTM A500?

At UNIASEN, we offer the finest ASTM A500 standardized Steel Pipes, a premium product line designed for structural integrity and versatility.

These pipes are crafted through cold-forming processes, resulting in seamless carbon steel tubing in various shapes and sizes. Ideal for construction of bridges, buildings, and other structural applications, our ASTM A500 pipes are the epitome of strength and durability. With their robust construction, they can withstand rigorous conditions, ensuring long-lasting performance.

When you choose our ASTM A500 pipes, you’re investing in reliability, quality, and the assurance of a product that meets international standards.

Specification

Our ASTM A500 Steel Pipes come in a range of dimensions, catering to your specific project needs. The production procedure adheres to stringent standards, ensuring high-quality output. We offer various steel grades, each with unique properties to suit different applications. Our pipes can be finished with a variety of surface coatings for enhanced durability and aesthetic appeal. We provide different end types and joint methods, allowing for flexible assembly. Additionally, we offer machining services to customize your pipes according to your specifications. With UNIASEN, you get a product that is truly tailored to your needs.

  • Standard: ASTM A500
  • Procedure: ERW, SMLS, SSAW, LSAW
  • Dimensions: 13.7mm – 2235mm

1/4″ – 88″

DN8 – DN400

  • Thickness: 1.65mm – 25.4mm

SCH 5S -SCH XXS

  • Unit Length: 1.5 – 18 mtrs
  • Steel Grade: ASTM A500 Gr. A, ASTM A500 Gr. C, ASTM A500 Gr. B, ASTM A500 Gr. D
  • Surface Coating: Varnishing, Black, Oiling, Hot Dip Galvanizing
  • End Type: Square cut, Bevelled, Threaded, Grooved
  • Joint Method: Fitting, Flange, Coupling, Clamp, Pipe Shoulder, Welding
  • Pipe Machining: Welding, Bending, Hole Drilling, Punching, Swaging, Tapering, Flaring, Expanding

Dimension

Our ASTM A500 Steel Pipes are available in a variety of dimensions, from small rounds to large rectangular shapes. Each dimension is meticulously designed to meet specific structural needs. Whether you require compact pipes for small-scale projects or large tubes for major constructions, we have you covered. Our dimension table provides a comprehensive guide to the available sizes, wall thicknesses, and weights, allowing you to choose the perfect pipe for your project. With UNIASEN, you have the freedom to select the ideal pipe dimension that aligns with your structural requirements.

Square Hollow Section
Thickness: 1.000 in. [25.4 mm] or less
Size (mm)
20 x 2080 x 80180 x 180
25 x 2590 x 90200 x 200
30 x 30100 x 100225 x 225
38 x 38110 x 110240 x 240
40 x 40120 x 120250 x 250
50 x 50125 x 125300 x 300
60 x 60130 x 130350 x 350
65 x 65140 x 140400 x 400
70 x 70150 x 150450 x 450
75 x 75160 x 160500 x 500
Rectangular Hollow Section
Thickness: 1.000 in. [25.4 mm] or less
Size (mm)
20 x 30120 x 40250 x 75
40 x 20120 x 50250 x 100
40 x 25120 x 60250 x 150
40 x 30120 x 80250 x 200
50 x 25120 x 100300 x 100
50 x 30140 x 60300 x 150
50 x 40140 x 80300 x 180
60 x 30150 x 50300 x 200
60 x 40150 x 75400 x 200
70 x 50150 x 100400 x 300
80 x 40160 x 60400 x 350
80 x 50160 x 80450 x 250
80 x 60180 x 120500 x 200
90 x 60180 x 140500 x 300
100 x 40200 x 50500 x 400
100 x 50200 x 60600 x 200
100 x 60200 x 80600 x 300
100 x 80200 x 100600 x 400
Steel Pipe Dimensions Chart ANSI B36. 10 & 36.19
Nominal
Pipe Size
Outside
Diameter
(mm)
Nominal Wall Thickness Schedule
NPSDNODSCH
5
SCH
10
SCH
20
SCH
30
SCH
STD
SCH
40
SCH
60
SCH
XS
SCH
80
SCH
100
SCH
120
SCH
140
1/8610.31.241.451.731.732.412.41
1/4813.71.651.852.242.243.023.02
3/81017.11.651.852.312.313.203.20
1/21521.31.652.112.412.772.773.733.73
3/42026.71.652.112.412.872.873.913.91
12533.41.652.772.93.383.384.554.55
1 1/43242.21.652.772.973.563.564.854.85
1 1/24048.31.652.773.183.683.685.085.08
25060.31.652.773.183.913.915.545.54
2 1/265732.113.054.785.165.167.017.01
38088.92.113.054.785.495.497.627.62
3 1/290101.62.113.054.785.745.748.088.08
4100114.32.113.054.786.026.028.568.5611.13
5125141.32.773.406.556.559.539.5312.70
6150168.32.773.407.117.1110.9710.9714.27
8200219.12.773.766.357.048.188.1810.3112.7012.7015.0918.2620.62
10250273.03.404.196.357.809.279.2712.7012.7015.0918.2621.4425.40
12300323.83.964.576.358.389.5310.3114.2712.7017.4821.4425.40
14350355.63.966.357.929.539.5311.1315.0912.7019.0523.83
16400406.44.196.357.929.539.5312.7016.6612.7021.44
184504574.196.357.9211.139.5314.2719.0512.7023.83
205005084.786.359.5312.709.5315.0920.6212.70
225505594.786.359.5312.709.5322.2312.70
246006105.546.359.5314.279.5317.4824.6112.70
266506607.9212.709.5312.70
287007117.9212.7015.889.5312.70
307507626.357.9212.7015.889.5312.70
328008137.9212.7015.889.5317.4812.70
348508647.9212.7015.889.5317.4812.70
369009147.9212.7015.889.5319.0512.70
389509659.5312.70
40100010169.5312.70
42105010679.5312.70
44110011189.5312.70
46115011689.5312.70
48120012199.5312.70
Nominal
Pipe Size
Outside
Diameter
(mm)
Nominal Wall Thickness
NPSDNOD
52130013219.5310.3111.1311.9112.714.2715.8817.4819.0520.6222.2323.8325.4
56140014229.5310.3111.1311.9112.714.2715.8817.4819.0520.6222.2323.8325.4
60150015249.5310.3111.1311.9112.714.2715.8817.4819.0520.6222.2323.8325.4
64160016269.5310.3111.1311.9112.714.2715.8817.4819.0520.6222.2323.8325.4
68170017279.5310.3111.1311.9112.714.2715.8817.4819.0520.6222.2323.8325.4
721800182912.714.2715.8817.4819.0520.6222.2323.8325.4
761900193012.714.2715.8817.4819.0520.6222.2323.8325.4
802000203214.2715.8817.4819.0520.6222.2323.8325.4
842134
882235

Chemical Requirement

At UNIASEN, we understand the importance of chemical composition in determining the quality of steel pipes. Our ASTM A500 Steel Pipes are made from a carefully balanced mix of carbon, manganese, phosphorus, sulfur, and copper. This composition ensures high strength, excellent ductility, and superior corrosion resistance. We strictly adhere to the chemical requirements set by the ASTM A500 standard, ensuring that our pipes deliver the performance you expect.

Chemical Requirements
ElementComposition, %
Grades B and DGrade C
HeatProductHeatProduct
AnalysisAnalysisAnalysisAnalysis
Carbon, maxA0.260.300.230.27
Manganese, maxA1.351.401.351.40
Phosphorus, max0.0350.0450.0350.045
Sulfur, max0.0350.0450.0350.045
Copper, minB0.200.180.200.18
A  For each reduction of 0.01 percentage point below the specified maximum for carbon, an increase of 0.06 percentage point above the specified maximum for manganese is permitted, up to a maximum of 1.50 % by heat analysis and 1.60 % by product analysis.
B  If copper-containing steel is specified in the purchase order.

Mechanical Requirement

Our ASTM A500 Steel Pipes meet all mechanical requirements set by the ASTM standard. They exhibit high tensile strength, yield strength, and elongation capacity, ensuring they can withstand heavy loads and high pressure. These mechanical properties make our pipes ideal for structural applications, providing the stability and resilience your projects need. When you choose UNIASEN, you’re choosing a product that won’t let you down.

Tensile Requirements
Round, Square, Rectangular, and Special Tubular Shapes
 Grade BGrade CGrade D
Tensile strength, min,
psi [MPa]
58 00062 00058 000
[400][425][400]
Yield strength, min, psi[MPa]46 00050 00036 000
[315][345][250]
Elongation in 2 in. [50
mm], min, %C
23A21B23A
A   Applies to specified wall thicknesses (t ) equal to or greater than 0. 180 in. [4.57mm]. For lighter specified wall thicknesses, the minimum elongation values shall be  calculated  by the formula:  percent  elongation  in 2  in.  [50  mm]  =  61t +  12, rounded to the nearest percent. For A500M use the following formula: 2.4t + 12, rounded to the nearest percent.

B    Applies to specified wall thicknesses (t ) equal to or greater than 0. 120 in. [3.05mm]. For lighter specified wall thicknesses, the minimum elongation values shall
be by agreement with the manufacturer.

C    The minimum elongation values specified apply only to tests performed prior to shipment of the tubing.

Steel Grades

We offer ASTM A500 Steel Pipes in various steel grades, each designed for specific applications. From Grade A with lower yield strength for lighter applications to Grade C with higher yield strength for heavy-duty structures, we have a grade for every need. Each grade offers a unique blend of chemical composition and mechanical properties, ensuring you get a pipe that’s perfectly suited to your project’s requirements.

Production Tolerance

At UNIASEN, we take pride in our precision. Our ASTM A500 Steel Pipes are produced with strict tolerances, ensuring consistent quality across all products. We adhere to the ASTM A500 standard’s tolerance requirements for dimensions, wall thickness, weight, and length. This means you can trust our pipes to fit perfectly into your project, with no surprises or adjustments needed. With UNIASEN, you get a product that’s made to measure, every time.

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