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Resources Steel Tubing ASTM Standards
Steel Tubing ASTM Standards
ASTM Standards

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Steel Tubing ASTM standards

All our steel tube is produced within ASTM-A513 tolerances unless otherwise specified. Our team rigorously inspects your product to ensure it meets all Steel tubing ASTM Standards. Our processes are ISO 9001 certified. Chemistry information for each heat number is supplied with every shipment. T&B Tube can furnish physical properties as required. Our materials physical certifications are provided by an independent certified lab.

ASTM Standards Steel Tube

ROUNDS

ASTM Standards Steel Tube

ASTM A513 Outside Diameter Tolerances

OD RangeGauge Range+/- Tolerance
0.75" - 1.125" inc.16ga - 11ga0.0035"
Over 1.125" - 2.0" inc.16ga - 10ga0.005"
Over 2.0" - 2.5" inc.16ga - 7ga0.006"

ASTM A513 Wall Tolerances - Hot Rolled Round Tubing

3/4" to 1"1 1/32 to 1 15/15"2" to 2 1/2"
GageNominalMin.Max.Min.Max.Min.Max.
18.049".042".050".042".049"**
17.058".049".063".048".062".047".061"
16.065".056".070".055".069".054".068"
15.072".063".077".062".076".061".075"
14.083".073".089".072".088".071".087"
13.095".085".101".084".100".083".099"
12.109".099".115".098".114".097".113"
11.120".110".126".109".125".108".124"
10.134"****.122".138"
7.180"****.167".185"

ASTM A513 Wall Tolerances – Cold Rolled Round Tubing

3/8” to 7/8”15/16” to 1 7/8”1 15/16” to 3 ¾”
GageNominalMin.Max.Min.Max.Min.Max.
22.028”.023”.029”.023”.029”**
20.035”.030”.037”.030”.036”.030”.036”
19.042”.036”.044”.036”.043”.036”.043”
18.049”.043”.052”.043”.051”.043”.051”
17.058”.052”.063”.051”.062”.051”.062”
16.065”.058”.070”.058”.069”.058”.069”
15.072”.065”.077”.065”.076”.065”.076”
14.083”.076”.089”.076”.088”.076”.087”
13.095”.088”.101”.088”.100”.088”.099”
12.109”**.101”.115”.101”.114”
11.120”**.112”.127”.112”.126”
10.134”**.126”.141”.126”.140”

SHAPES

ASTM Standards Steel tube

ASTM A513 Outside Dimension Tolerances

Largest Outside Dim.Gauge Range+/- Tolerance
.62520ga - 14ga.004"
Over .625" - 1.125" inc.20ga - 11ga.005"
Over 1.125" - 1.5" inc.20ga - 10ga.006"
Over 1.5" - 2" inc.16ga - 7ga.008"
Over 2" - 3" inc.16ga - 7ga.01"

ASTM A513 Gauge Tolerances

GaugeNominalLow WallHigh Wall
20.035".032".039"
19.042".038".046"
18.049".044".054"
17.058".052".064"
16.065".059".072"
14.083".075".091"
13.095".086".105"
12.109".098".120"
11.120".108".132"
10.134".121".147"
7.180".162".198"

Working with T&B Tube Company

For three decades, we have strived to put the customer first and exceed expectations. We know how important it is that our product arrives on time and fabricates without problems.