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Specs |
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A500 Specifications
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Mechanical Properties
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Properties
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Grade A
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Grade B
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Grade C
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Tensile Strength, min. psi
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45,000
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58,000
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62,000
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Yield Strength, min. psi
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39,000
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46,000
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50,000
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Elongation in 2" min.
3/16" wall & heavier
1/8" wall
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25%
25%
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23%
19.5%
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21%
21%
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Outside Dimensions
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Largest Outside Dimension
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Tolerance*
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2-1/2" and under
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± 0.020"
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Over 2-1/2" to 3-1/2" inclusive
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± 0.025"
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Over 3-1/2" to 5-1/2" inclusive
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± 0.030"
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Over 5-1/2"
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± 1%
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*Tolerances include allowance for convexity or concavity.
For rectangular tubing having a ratio of outside large to small flat dimension less
than 1.5, and for square tubing, the tolerance on small flat dimension shall be
identical to the large flat dimension tolerance. For rectangular tubing having a
ratio of outside large to small flat dimension in the range of 1.5 to 3.0 inclusive,
the tolerance on small flat dimension shall be 1.5 times the large flat dimension
tolerance. For rectangular tubing having a ratio of outside large to small flat
dimension greater than 3.0, the tolerance on small flat dimension shall be 2.0 times
the large flat dimension tolerance.
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Chemical Composition
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Chemical
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Grades
A & B
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Grade C
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Carbon, max. %
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0.26
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0.23
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Manganese, max. %
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---
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1.35
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Phosphorus, max. %
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0.04
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0.04
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Sulphur, max. %
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0.05
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0.05
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Copper, when copper steel is specified, min. %
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0.20
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0.20
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Twist
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Longest Side
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Maximum Twist in 3 Feet
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Over 1-1/2" to 2-1/2" inclusive
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.062"
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Over 2-1/2" to 4" inclusive
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.075"
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Over 4" to 6" inclusive
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.087"
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Over 6" to 8" inclusive
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.100"
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Over 8"
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.112"
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- Straightness: .025" times the number of feet of total
length
- Squareness of Sides: Deviation from 90? by +/-2? max.
- Radius of Corners: The radius of any outside corner
shall not exceed three times the specified wall thickness
- Wall Thickness:
+/-10% of nominal wall thickness, as measured at the center of the flat
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To the best of our knowledge, all information contained herein
is correct at the time of publication. Independence Tube Corporation does not assume
any responsibility for errors or oversights resulting from the use of the information
contained herein.
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