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Your Position: Home > Product > Carbon Steel Pipes > Precision Tubes

Cold Drawn Seamless

Update: 2015/4/6      View:
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Introduction

Cold Drawn Seamless Mechanical Tubing (CDS) is a cold drawn 1018 / 1026 steel tube which offers uniform tolerances, enhanced machinability and increased strength and tolerances compared to hot-rolled products. Produced from hot rolled 1026, the cold drawing process increases the tube's physical properties and offers better tolerances and reduced machining allowances over hot finish seamless.

  • Made from 1018/1026 steel
  • Meet ASTM A519
  • Stocked size range: 1.500” – 14.000” OD; .2500” – 1.2500” wall thickness
  • Stocked lengths 8’-24’
  • Cut to length available

Benefits of Round Cold Drawn Seamless Mechanical Tubing:

  • Superior surface finish
  • Dimensional accuracy and excellent micro-structure uniformity
  • Enhanced machinability
  • High strength to weight ratio
  • Tight tolerances, resulting in reduced machine time
  • Applications: hydraulic cylinders, rollers, structural apps, truck and automotive parts.

Seamless Mechanical Tube Tolerance

Test Reports available on request

Cold Drawn Round Carbon Steel

ASTM A519

Grade Chemistry          %    Yield Tensile Elongation Typical Hardness
                   PSI PSI % in 2" section Min
1020 Carbon 0.15-0.25 60,000 70,000 10 B-80
  MN 0.30-0.60        
  P 0.040 Max        
  S 0.050 Max        
1026 Carbon 0.21-0.28 75,000 85,000 8 B-85
  MN 0.60-0.90        
  P 0.040 Max        
  S 0.050 Max        

Diameter Tolerances

OD
Size Range 		Wall:
Percent of OD

Unannealed or
Stress Relief Annealed

Soft Annealed or
Normalized 		Oil Quenched 
& Tempered
Inches   OD Inches ID Inches OD Inches ID Inches OD & ID
    Plus Minus Plus Minus Plus Minus Plus Minus Plus/Minus
Up to 0.499 All 0.004 0.000     0.005 0.002     0.005
0.500-1.699 All 0.005 0.000 0.000 0.005 0.007 0.002 0.002 0.007 0.007
0.500-1.699 All 0.005 0.000 0.000 0.005 0.007 0.002 0.002 0.007 0.007
1.700-2.099 All 0.006 0.000 0.000 0.006 0.006 0.005 0.005 0.006 0.008
2.100-2.499 All 0.007 0.000 0.000 0.007 0.008 0.005 0.005 0.008 0.009
2.500-2.899 All 0.008 0.000 0.000 0.008 0.009 0.005 0.005 0.009 0.010
2.900-3.299 All 0.009 0.000 0.000 0.009 0.011 0.005 0.005 0.011 0.012
3.300-3.699 All 0.01 0.000 0.000 0.01 0.013 0.005 0.005 0.013 0.013
3.700-4.099 All 0.011 0.000 0.000 0.011 0.013 0.007 0.01 0.010 0.014
4.100-4.499 All 0.012 0.000 0.000 0.012 0.014 0.007 0.011 0.011 0.015
4.500-4.899 All 0.013 0.000 0.000 0.013 0.016 0.007 0.012 0.012 0.017
4.900-5.299 All 0.014 0.000 0.000 0.014 0.018 0.007 0.013 0.013 0.018
5.300-5.549 All 0.015 0.000 0.000 0.015 0.02 0.007 0.014 0.014 0.019
  Under 6 0.010 0.010 0.010 0.010 0.018 0.018 0.018 0.018 0.025
5.550-5.999 6 to 7 1/2 0.009 0.009 0.009 0.009 0.016 0.016 0.016 0.016 0.023
  Over 7 1/2 0.018 0.000 0.009 0.009 0.017 0.015 0.016 0.016 0.023
  Under 6 0.013 0.013 0.013 0.013 0.023 0.023 0.023 0.023 0.033
6.000-6.499 6 to 7 1/2 0.010 0.010 0.010 0.010 0.018 0.018 0.018 0.018 0.025
  Over 7 1/2 0.020 0.000 0.010 0.010 0.020 0.015 0.018 0.018 0.025
  Under 6 0.015 0.015 0.015 0.015 0.027 0.027 0.027 0.027 0.038
6.500-6.999 6 to 7 1/2 0.012 0.012 0.012 0.012 0.021 0.021 0.021 0.021 0.029
  Over 7 1/2 0.012 0.012 0.012 0.012 0.021 0.021 0.021 0.021 0.029
  Under 6 0.018 0.018 0.018 0.018 0.032 0.032 0.032 0.032 0.045
7.000-7.499 6 to 7 1/2 0.013 0.013 0.013 0.013 0.023 0.023 0.023 0.023 0.033
  Over 7 1/2 0.026 0.000 0.013 0.013 0.031 0.015 0.023 0.023 0.033
  Under 6 0.02 0.020 0.020 0.020 0.035 0.035 0.035 0.035 0.05
7.500-7.999 6 to 7 1/2 0.015 0.015 0.015 0.015 0.026 0.026 0.026 0.026 0.037
  Over 7 1/2 0.029 0.000 0.015 0.015 0.036 0.015 0.026 0.026 0.037
  Under 6 0.023 0.023 0.023 0.023 0.041 0.041 0.041 0.041 0.058
8.000-8.499 6 to 7 1/2 0.016 0.016 0.016 0.016 0.028 0.028 0.028 0.028 0.040
  Over 7 1/2 0.031 0.000 0.015 0.016 0.033 0.022 0.028 0.028 0.040
  Under 6 0.025 0.025 0.025 0.025 0.044 0.044 0.044 0.044 0.063
8.500-8.999 6 to 7 1/2 0.017 0.017 0.017 0.017 0.03 .030' 0.030 0.030 0.043
  Over 7 1/2 0.034 0.000 0.015 0.019 0.038 0.022 0.030 0.030 0.043
  Under 6 0.028 0.028 0.028 0.028 0.045 0.045 0.049 0.049 0.070
9.000-9.499 6 to 7 1/2 0.019 0.019 0.019 0.019 0.033 0.033 0.033 0.033 0.047
  Over 7 1/2 0.037 0.000 0.015 0.022 0.043 0.022 0.033 0.033 0.047
  Under 6 0.03 0.030 0.030 0.030 0.045 0.045 0.053 0.053 0.075
9.500-9.999 6 to 7 1/2 0.02 0.020 0.020 0.020 0.035 0.035 0.035 0.035 0.050
  Over 7 1/2 0.04 0.000 0.015 0.025 0.048 0.022 0.035 0.035 0.050
  Under 6 0.034 0.034 0.034 0.034 0.045 0.045 0.060 0.060 0.080
10.000-10.999 6 to 7 1/2 0.022 0.022 0.022 0.022 0.039 0.039 0.039 0.039 0.055
  Over 7 1/2 0.044 0.000 0.015 0.029 0.055 0.022 0.039 0.039 0.055
  Under 6 0.035 0.035 0.035 0.035 0.05 0.050 0.065 0.065  
11.000-12.000 6 to 7 1/2 0.025 0.025 0.025 0.025 0.045 0.045 0.045 0.045  
  Over 7 1/2 0.045 0.000 0.015 0.035 0.060 0.022 0.045 0.045  

Wall Tolerances

Wall  % of OD Wall Tolerances Max 
% Over and Under Nominal Wall 		ID under .500" ID .500" and over
Under 10%   +/- 10.0% +/- 7.5%
10 - 25%   +/- 10.0% +/- 6.5%
Over 25%   +/- 12.5% +/- 7.5%

Straightness Tolerances

Outside Diameter Size Range Wall percent of Outside Diameter Total Camber in any 3 ft.
Up to 5.000" 3% OD & Over 0.030"
5.001 / 8.000" 4% OD & Over 0.045"
8.001 / 10.750" 4% OD & Over 0.060"
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