ASTM A500 Tubes Manufacturer and Supplier in India

Depending on the strength requirements of the tube, certain tubing is most suitable for certain applications. ASTM A500 Tubes are often referred to as hollow structural sections. Rectangular sections are commonly used in welded steel frames with multiple directions of loading.
Due to their uniform geometry along two or more cross-sectional axes, square and circular HSS exhibit uniform strength characteristics under multiple-axis loading. Therefore, they are good choices for columns. The resistance to torsion is also excellent.
The flat square surfaces of ASTM A500 Tubes can sometimes enhance the aesthetics of exposed structures. We typically produce to ASTM A500 grade B standards, but we can also produce to ASTM A1085. There is a specification for the outside dimensions (OD) and wall thickness (gauge).
In structural applications, we produce square, rectangle, round, and special-shaped electric resistance welded carbon steel tubing to ASTM specifications ASTM A500 Tubes, Grade B, and Grade C. The grade required depends on the purpose and strength level. The Grade D specification is not met by Valmont tubing.
Square & Rectangle ASTM A500 Tubes
Grade | Yield (min) | Tensile (min) | Elongation (min) |
---|---|---|---|
Grade A | 39,000 psi | 45,000 psi | Determined by wall |
Grade B | 46,000 psi | 58,000 psi | Determined by wall |
Grade C | 50,000 psi | 62,000 psi | Determined by wall |
Round ASTM A500 Tubes
Grade | Yield(min) | Tensile (min) | Elongation (min) |
---|---|---|---|
Grade A | 33,000 psi | 45,000 psi | Determined by wall |
Grade B | 42,000 psi | 58,000 psi | Determined by wall |
Grade C | 46,000 psi | 62,000 psi | Determined by wall |
Corten Steel Tube is your premium resource for advanced quality A500 structural carbon steel tubing. Contact us for more information regarding ASTM A500 carbon steel tubes. We will gladly discuss the specific requirements of your next project.
Specification Of ASTM A500 Tubes
- In accordance with ASTM A500 Tubes, weld seams should not be located within the corner radius of square, rectangle, and other specially shaped tubes.
- The corner radius of square and rectangular tubing shall not exceed three times the tube diameter, according to ASTM A500.
- As per ASTM A500, electric resistance welded tubing is normally provided without removing the inside flash. Please specify at the time of quotation or order placement if flash control is required.
- ASTM A847 specifies high-strength low alloy atmospheric corrosion-resistant steel tubing.
A500 Carbon Steel Material Component Properties
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 |
A500 Carbon Steel Mechanical Properties
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 |
A500 Carbon Steel Permissible Dimensional Variations for Outside Dimensions
- Outside diameter measurements for ASTM A500 Tubes must be made at positions at least 2” (50.8mm) from either end of the tubing.
- It is prohibited for round structural tubing with a nominal outside diameter of 1.900″ (48.26mm) or less to vary by more than 0.5%, rounded to the nearest 0.005″ (0.13mm). Nominal ODs of 2″ (50.8mm) and larger cannot vary more than 0.75%, rounded to the nearest 0.005″.
- A convexity or concavity allowance must be made when measuring square structural tubing and rectangular structural tubing across flats. The specified dimensions must not exceed the plus/minus allowances shown in the table below.
ASTM A500 Tubes Outside Dimensional Tolerances for Square & Rectangular Steel tubing
When determining outside dimensional tolerances for square and rectangular steel tubing, multiple factors must be taken into account. Below is a chart that shows the exact outside dimensional tolerances for A500 carbon steel.
Outside Large Flat Dimension, in. (mm) | Large Flat Dimension Tolerance, 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
STRAIGHTNESS
SIDE SQUARENESS
CORNER RADII
TWIST
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 |
Stocked Size Range And Shapes
- Square: 0.500″ to 16.000″ with 0.065″ to 0.625″ Wall Thickness
- Rectangle: 1.000″ x 0.500″ to 20.000″ x 12.000″ with 0.065″ to 0.625″ Wall Thickness
- Round: 0.750″ to 20.000″ O.D. with 0.065″ to 0.625″ Wall Thickness
Advantages of ASTM A500 Tubes
- Excellent weldability
- Good machinability
- Can be cold worked
- Aesthetically pleasing
FAQs for ASTM A588 Corten Steel Plates
ASTM A500 Grade B steel pipe can often replace other standard carbon steel pipes due to comparable mechanical properties. However, for more demanding applications requiring greater strength, ASTM A500 Grade C pipe, with its higher yield and tensile strength, is the preferred choice.
Galvanized rectangular tubing can be manufactured from either A513 or A500 grade steel, depending on the dimensions. The galvanization process involves hot-dipping the steel into molten zinc.
ASTM A500 comes in different grades, including B and C. Grade B is suitable for various construction methods like welding, riveting, and bolting. Grade C is specified for structural uses where higher strength is essential, boasting a minimum yield strength of 50,000 psi (345 MPa) and a minimum tensile strength of 62,000 psi (427 MPa).
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