A513 T-5 D.O.M.

A513-Type 5 This specification covers electric-resistance-welded carbon and alloy steel tubing that is Drawn Over a Mandrel (D.O.M.) and through a die, primarily for use as mechanical tubing. This specification covers round, square, rectangular, and special shape tubing.

Typical Chemical Properties
Grade Designation Carbon Manganese Phosphorus, max. Sulfur, max.
1015 0.13 – 0.18 0.30 – 0.60 0.035 0.035
1020 0.18 – 0.23 0.30 – 0.60 0.035 0.035
1026 0.22 – 0.28 0.60 – 0.90 0.035 0.035
Typical Mechanical Properties
Hardness Limits and Tensile Properties for D.O.M. Stress-Relieved Tubing Yield Strength, ksi (Mpa), min. Ultimate Strength, ksi (Mpa), min. Elongation in 2 in. or 50 mm, %, min. RB min.
Grade Designation
1015 50 (345) 60 (414) 12 72
1020 55 (379) 65 (448) 10 75
1026 65 (448) 75 (517) 10 80
Typical Permissible Variations in Wall Thickness
Wall Thickness (inches) {Birmingham Wire Gage} .375 to 0.875 inclusive Over 0.875 inch to 1.875 inch, Inclusive Over 1.875 inch to 3.750 inch, Inclusive Over 3.750 inch to 15.000 inch, Inclusive
0.035 {20} + 0.002 / – 0.002 + 0.002 / – 0.002 + 0.002 / – 0.002 …..
0.042 {19} + 0.002 / – 0.002 + 0.002 / – 0.003 + 0.002 / – 0.003 …..
0.049 {18} + 0.002 / – 0.002 + 0.002 / – 0.003 + 0.002 / – 0.003 …..
0.065 {16} + 0.002 / – 0.002 + 0.002 / – 0.003 + 0.002 / – 0.003 + 0.004 / – 0.004
0.072 {15} + 0.002 / – 0.002 + 0.002 / – 0.003 + 0.003 / – 0.003 + 0.004 / – 0.005
0.083 {14} + 0.002 / – 0.002 + 0.002 / – 0.003 + 0.003 / – 0.003 + 0.004 / – 0.005
0.095 {13} + 0.002 / – 0.002 + 0.002 / – 0.003 + 0.003 / – 0.003 + 0.004 / – 0.005
0.109 {12} + 0.002 / – 0.003 + 0.002 / – 0.004 + 0.003 / – 0.003 + 0.005 / – 0.005
0.120 {11} + 0.003 / – 0.003 + 0.002 / – 0.004 + 0.003 / – 0.003 + 0.005 / – 0.005
0.134 {10} ….. + 0.002 / – 0.004 + 0.003 / – 0.003 + 0.005 / – 0.005
0.148 {9} ….. + 0.002 / – 0.004 + 0.003 / – 0.003 + 0.005 / – 0.005
0.165 {8} ….. + 0.003 / – 0.004 + 0.003 / – 0.004 + 0.005 / – 0.006
0.180 {7} ….. + 0.004 / – 0.004 + 0.003 / – 0.005 + 0.006 / – 0.006
0.203 {6} ….. + 0.004 / – 0.005 + 0.004 / – 0.005 + 0.006 / – 0.007
0.220 {5} ….. + 0.004 / – 0.006 + 0.004 / – 0.006 + 0.007 / – 0.007
0.259 {3} ….. + 0.005 / – 0.006 + 0.005 / – 0.006 + 0.007 / – 0.007
0.284 {2} ….. + 0.005 / – 0.006 + 0.005 / – 0.006 + 0.007 / – 0.007
0.300 {1} ….. + 0.006 / – 0.006 + 0.006 / – 0.006 + 0.008 / – 0.008
0.32 ….. + 0.007 / – 0.007 + 0.007 / – 0.007 + 0.008 / – 0.008
0.344 ….. + 0.008 / – 0.008 + 0.008 / – 0.008 + 0.009 / – 0.009
0.375 ….. ….. + 0.009 / – 0.009 + 0.009 / – 0.009
0.4 ….. ….. + 0.010 / – 0.010 + 0.010 / – 0.010
0.438 ….. ….. + 0.011 / – 0.011 + 0.011 / – 0.011
0.46 ….. ….. + 0.012 / – 0.012 + 0.012 / – 0.012
0.48 ….. ….. + 0.012 / – 0.012 + 0.012 / – 0.012
0.531 ….. ….. + 0.013 / – 0.013 + 0.013 / – 0.013
0.563 ….. ….. + 0.013 / – 0.013 + 0.013 / – 0.013
0.58 ….. ….. + 0.014 / – 0.014 + 0.014 / – 0.014
0.6 ….. ….. + 0.015 / – 0.015 + 0.015 / – 0.015
0.625 ….. ….. + 0.016 / – 0.016 + 0.016 / – 0.016
0.65 ….. ….. + 0.017 / – 0.017 + 0.017 / – 0.017
Permissible Variations in Dimensions for Round Tubing
Wall Thickness % of O.D. Outside Diameter Tolerance (inches) Outside Diameter Tolerance (inches) Inside Diameter Tolerance (inches) Inside Diameter Tolerance (inches)
Outside Diameter Size Range, inches Over Under Over Under
Up to 0.499 all 0.004 0.000 …. ….
0.500 to 1.699 all 0.005 0.000 0.000 0.005
1.700 to 2.099 all 0.006 0.000 0.000 0.006
2.100 to 2.499 all 0.007 0.000 0.000 0.007
2.500 to 2.899 all 0.008 0.000 0.000 0.008
2.900 to 3.299 all 0.009 0.000 0.000 0.009
3.300 to 3.699 all 0.010 0.000 0.000 0.010
3.700 to 4.099 all 0.011 0.000 0.000 0.011
4.100 to 4.499 all 0.012 0.000 0.000 0.012
4.500 to 4.899 all 0.013 0.000 0.000 0.013
4.900 to 5.299 all 0.014 0.000 0.000 0.014
5.300 to 5.549 all 0.015 0.000 0.000 0.015
5.550 to 5.999 under 6 0.010 0.010 0.010 0.010
5.550 to 5.999 6 and over 0.009 0.009 0.009 0.009
6.000 to 6.499 under 6 0.013 0.013 0.013 0.013
6.000 to 6.499 6 and over 0.010 0.010 0.010 0.010
6.500 to 6.999 under 6 0.015 0.015 0.015 0.015
6.500 to 6.999 6 and over 0.012 0.012 0.012 0.012
7.000 to 7.499 under 6 0.018 0.018 0.018 0.018
7.000 to 7.499 6 and over 0.013 0.013 0.013 0.013
7.500 to 7.999 under 6 0.020 0.020 0.020 0.020
7.500 to 7.999 6 and over 0.015 0.015 0.015 0.015
8.000 to 8.499 under 6 0.023 0.023 0.023 0.023
8.000 to 8.499 6 and over 0.016 0.016 0.016 0.016
8.500 to 8.999 under 6 0.025 0.025 0.025 0.025
8.500 to 8.999 6 and over 0.017 0.017 0.017 0.017
9.000 to 9.499 under 6 0.028 0.028 0.028 0.028
9.000 to 9.499 6 and over 0.019 0.019 0.019 0.019
9.500 to 9.999 under 6 0.030 0.030 0.030 0.030
9.500 to 9.999 6 and over 0.020 0.020 0.020 0.020
10.000 to 10.999 all 0.034 0.034 0.034 0.034
11.000 to 11.999 all 0.035 0.035 0.035 0.035
12.000 to 12.999 all 0.036 0.036 0.036 0.036
13.000 to 13.999 all 0.037 0.037 0.037 0.037
14.000 to 14.999 all 0.038 0.038 0.038 0.038

Tubing produced to Outside diameter and Inside diameter.

Ovality – The ovality shall be within the tolerances except when the wall thickness is less than 3 % of the outside diameter. In such cases see below.

The additional ovality shall be as follows but the mean outside diameter shall be within the specified tolerance:

Outside Diameter, Inches (mm) Additional Ovality Tolerance, inches (mm)
Up to 2 (50.8), inclusive 0.010 (0.25)
Over 2 to 3 (50.8 to 76.2), inclusive 0.015 (0.38)
Over 3 to 4 (76.2 to 101.6), inclusive 0.020 (0.51)
Over 4 to 5 (101.6 to 127.0), inclusive 0.025 (0.64)
Over 5 to 6 (127.0 to 152.4), inclusive 0.030 (0.76)
Over 6 to 7 (152.4 to 177.8), inclusive 0.035 (0.89)
Over 7 to 8 (177.8 to 203.2), inclusive 0.040 (1.02)
Over 8 to 9 (203.2 to 228.6), inclusive 0.045 (1.14)
Over 9 to 10 (228.6 to 254.0), inclusive 0.050 (1.27)
Over 10 to 11 (254.0 to 279.4), inclusive 0.055 (1.40)
Over 11 to 12 (279.4 to 304.8), inclusive 0.060 (1.52)
Over 12 to 12.5 (304.8 to 317.5), inclusive 0.065 (1.65)

Straightness – The straightness tolerance for round tubing is 0.030 in./ 3 ft (0.76 mm/1 m) lengths to 8.000 in. (203 mm) outside diameter. For 8.000 in. outside diameter and above, straightness tolerance is 0.060 in./3 ft (1.52 mm/1 m) lengths.

Information provided is “Typical” for specific requirements please inquire.