ASTM Seamless Steel Precision Tube Pipe

Type: Seamless
Technique: Cold Drawn
Material: Carbon Steel
Surface Treatment: as Required
Usage: Pipeline Transport, Special Purpose, Oil/Gas Drilling, Machinery Industry, Chemical Industry, Mining, Construction & Decoration
Section Shape: Round
Customization:

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Basic Info.

Model NO.
MRPT03
OEM
Supported
Transport Package
Bundle
Specification
ASTM
Trademark
MR
Origin
Qingdao, China
HS Code
73089000
Production Capacity
200, 000 Tons/Month

Product Description

ASTM Carbon Steel Tube/Pipe Precision Tube Pipe/Pipe
Drawn Over Mandrel
ASTM Seamless Steel Precision Tube Pipe

Drawn Over Mandrel (DOM) Round Mechanical Tubing is a cold drawn 1020 / 1026 electric resistance welded tube with all the flash removed prior to cold drawing.  In comparison to other tubing, DOM round tubing is produced to more exact OD and ID tolerances, and has the highest weld strength possible.

  • Made from 1020 / 1026 Steel
  • Meets ASTM A513 Type 5
  • Stocked Size Range: 3/16" - 14" OD; .028" - .625" wall thickness
  • Stocked in 20' random lengths
  • Cut to length sizes
  • Suitable to hone sizes
  • Imperial and metric sizes
  • Custom sizes available upon request

Benefits of Drawn Over Mandrel (DOM) Round Mechanical Tubing:

  • Uniform wall thickness with close OD and ID tolerances
  • Uniform grain structure and controlled hardness
  • High Tensile and Yield Strength
  • Smooth and Clean OD and ID surfaces
  • Excellent machining characteristics
  • Applications: Hydraulic Cylinders, Axles, High Speed Shafts, Barrels, Bearings, Spacers, and many other machined tubular parts.

D.O.M. Steel Tubing

Test reports available on request.

ASTM A513 Type 5  

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 15 B-85

MN 0.60-0.90




P 0.040 Max




S 0.050 Max



ST52.3   Carbon  0.13-0.18  75,000 85,000  15  B-80

 MN  1.2-1.4




 P  0.025 max




 S  0.010 max



Diameter Tolerances

OD Inches Wall: OD Inches ID Inches
Size Range Percent of OD Plus Minus Plus Minus
Up to 0.499 All 0.004 0.000

0.500-1.699 All 0.005 0.000 0.000 0.005
1.700-2.099 All 0.006 0.000 0.000 0.006
2.100-2.499 All 0.007 0.000 0.000 0.007
2.500-2.899 All 0.008 0.000 0.000 0.008
2.900-3.299 All 0.009 0.000 0.000 0.009
3.300-3.699 All 0.010 0.000 0.000 0.010
3.700-4.099 All 0.011 0.000 0.000 0.011
4.100-4.499 All 0.012 0.000 0.000 0.012
4.500-4.899 All 0.013 0.000 0.000 0.013
4.900-5.299 All 0.014 0.000 0.000 0.014
5.300-5.549 All 0.015 0.000 0.000 0.015
5.550-5.999 Under 6" 0.010 0.001 0.001 0.001

6 to 7 1/2" 0.009 0.009 0.009 0.009
6.000-6.499 Under 6 0.013 0.013 0.013 0.013

6 to 7 1/2" 0.014 0.014 0.014 0.041
6.500-6.999 Under 6 0.015 0.015 0.015 0.015

6 to 7 1/2 0.012 0.012 0.012 0.012
7.000-7.499 Under 6 0.018 0.018 0.018 0.018

6 to 7 1/2 0.013 0.013 0.013 0.013
7.500-7.999 Under 6 0.002 0.002 0.002 0.002

6 to 7 1/2 0.015 0.015 0.015 0.015
8.000-8.499 Under 6 0.023 0.023 0.023 0.023

6 to 7 1/2 0.016 0.016 0.016 0.016
8.500-8.999 Under 6 0.025 0.025 0.025 0.025

6 to 7 1/2 0.017 0.017 0.017 0.017
9.000-9.499 Under 6 0.028 0.028 0.028 0.028

6 to 7 1/2 0.019 0.019 0.019 0.019
9.500-9.999 Under 6 0.003 0.003 0.003 0.003

6 to 7 1/2 0.002 0.002 0.002 0.002
10.000-10.999 Under 6 0.034 0.034 0.034 0.034

6 to 7 1/2 0.022 0.022 0.022 0.022
11.000-11.999 Under 6 0.035 0.035 0.035 0.035

6 to 7 1/2 0.025 0.025 0.025 0.025
12.000-12.999 Under 6 0.036 0.036 0.036 0.036

6 to 7 1/2 0.027 0.027 0.027 0.027
13.000-13.999 Under 6 0.037 0.037 0.037 0.037

6 to 7 1/2 0.029 0.029 0.029 0.029
14.000-15.000 Under 6 0.038 0.038 0.038 0.038

6 to 7 1/2 0.003 0.003 0.003 0.003

Ovality shall be within the above tolerances except when the wall thickness is less than 3% of the OD.

In those cases the additional ovality shall be as follows, but the mean diameter shall be within the specified tolerance

Outside Diameter Additional Ovality Tolerance Outside Diameter Additional Ovality Tolerance
Up to 2"  0.010" 7" - 8" incl. 0.040"
2" - 3" incl. 0.015" 8" - 9" incl. 0.045"
3" - 4" Incl. 0.020" 9"-10" incl. 0.050"
4" - 5" incl. 0.025" 10"-11" incl. 0.055"
5" - 6" incl. 0.030" 11"-12" incl. 0.060"
6" - 7" incl. 0.035" 12"-12.5"incl. 0.065"

Straightness Tolerance

.030" in any 3 ft. of length up to 7.500" OD
.060" in any 3 ft. of length over 7.500" OD

Wall Tolerances

Wall Including Over .875" to Over 1.875" to Over 3.750 "to
Thickness, .375" to 1.875" OD 3.750" OD 15.000" OD
Inches .875" OD


0.028 & 0.035 0.002" 0.002" 0.002"

-0.002" -0.002" -0.002"
0.049 0.002" 0.002" 0.002"

-0.002" -0.003" -0.003"
0.065 0.002" 0.002" 0.002" 0.004"

-0.002" -0.003" -0.003" -0.004"
0.083 0.002" 0.002" 0.003" 0.004"

-0.002" -0.003" -0.003" -0.005"
0.095 0.002" 0.002" 0.003" 0.004"

-0.002" -0.003" -0.003" -0.005"
0.109 0.002" 0.002" 0.003" 0.005"

-0.003" -0.004" -0.003" -0.005"
0.120 0.003" 0.002" 0.003" 0.005"

-0.003" -0.004" -0.003" -0.005"
0.134
0.002" 0.003" 0.005"


-0.004" -0.003" -0.005"
0.148
0.002" 0.003" 0.005"


-0.004" -0.003" -0.005"
0.165
0.003" 0.003" 0.005"


-0.004" -0.004" -0.006"
0.180
0.004" 0.003" 0.006"


-0.004" -0.005" -0.006"
0.203
0.004" 0.004" 0.006"


-0.005" -0.005" -0.007"
0.220
0.004" 0.004" 0.007"


-0.006" -0.006" -0.007"
0.238
0.005" 0.005" 0.007"


-0.006" -0.006" -0.007"
0.259
0.005" 0.005" 0.007"


-0.006" -0.006" -0.007"
0.284
0.005" 0.005" 0.007"


-0.006" -0.006" -0.007"
0.300
0.006" 0.006" 0.008"


-0.006" -0.006" -0.008"
0.320
0.007" 0.007" 0.008"


-0.007" -0.007" -0.008"
0.344
0.008" 0.008" 0.009"


-0.008" -0.008" -0.009"
0.375

0.009" 0.009"



-0.009" -0.009"
0.400

0.010" 0.010"



-0.010" -0.010"
0.438

0.011" 0.011"



-0.011" -0.011"
0.480

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"
0.580

0.014" 0.014"



-0.014" -0.014"
0.600

0.015" 0.015"



-0.015" -0.015"
0.625

0.016" 0.016"



-0.016" -0.016"
0.650


0.017"




-0.017" 
ASTM Seamless Steel Precision Tube Pipe

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