Project Description

Seamless Cold Drawn Precision Tubes and Pipes

Product NameStandardGradeSize Range
O.D. mm
Usage
Seamless Cold Drawn Precision TubesJIS G3445STKM 11A, STKM 12A, STKM 12B, STKM 12C, STKM 13A, STKM 13B, STKM 13C, STKM 15A, STKM 15C, STKM 17A, STKM 17C, STKM 18A6.00 to 88.90Mechanical and Automobile Precision Tubes
DIN2391ST35, ST45, ST526.00 to 76.00Seamless Precision Tubes
ASME/ ASTM SA/A519SAE1010,

SAE1020,

SAE1025,

SAE1026,

SAE1035,

SAE1045,

SAE4130

6.00 to 340.00Mechanical Precision Tubes
EN10305-1E215, E235, E3356.00 to 340.00Hydraulic Pressure Equipment
ISO8535-1ST35, ST37, ST526.00 to 16.00High Precision High Pressure Fuel Pipes
Cold Drawn Welded Precision TubesASTM A513MT1010, 1015, 102021.70 to 90.00Automobile Shock Absorber Cylinder, Front and Rear Axle Structural Purpose,

Director Tubes, Engine Hydraulic Tubes

EN10305-2E215, E235, E33510.00 to 90.00
DIN2393S215, S235, S35510.00 to 90.00
DIN2394S215, S235, S35510.00 to 90.00

Cold drawn Precision Tubes (Cold Rolled Precision Tubes)

Precision Cylinder Tubes, Honed Tubes.

Size: Outside Diameter: 6mm – 340mm, Wall Thickness: 1mm – 50mm

Standard: DIN2391, DIN2394, ASTM A519, JIS G3445 STKM

Application: used for Air Cylinder and Oil Cylinder, Oil Inlet Tubes and Gas Spring Tubes on Automobile, Bushing

Tubes.

Seamless cold drawn precision tubes and pipes are widely used for machine structural purpose, automobile, and hydraulic pressure equipment.

Because CTS has its own factory of cold drawn precision tubes and pipes, we are more competitive than our peer companies.
Due to that, CTS has many advantages.

What are CTS’ competitive aspects on producing seamless cold drawn precision tubes?

First of all, CTS could provide samples for customers to check and test before they place orders.

Secondly, CTS has TS16949 certificate, while not so many factories have it.

Furthermore, we could load container directly in our warehouse, and as a result, most damages could be avoid during the transportation from the warehouse to port.

Finally, we have 14 sets of cold drawn lines and 20 sets of cold rolled lines to produce seamless cold drawn precision tubes and welded cold drawn precision tubes.

Destination and standards of seamless cold drawn precision tubes and pipes.

Due to good quality, our precision tubes have been exported to Thailand, Malaysia, Indonesia, Korea, Turkey, Colombia, and Singapore, etc.

Our factory has more than 10 years’ experience of cold drawn precision tubes and pipes.

What standards of seamless cold drawn precision tubes could CTS supply?

We can supply seamless cold drawn precision tubes and pipes according to Standard DIN2391, DIN2392, DIN2393, EN10305, JIS G3445, ASTM A519, and ASTM A513.

We are familiar with almost all precision tubes standards.

Honing tubes for cylinder are also our main products. Standards include DIN2391 ST52 and ASTM A519 SAE1020.

Feel free to contact CTS now for seamless cold drawn precision tubes and pipes business.

You are always welcomed.

Need other steel tubes? Contact us now!

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Standards

COUNTRYSTANDARDName
ASTMASTM A519Seamless Carbon and Alloy Steel Mechanical Tubing
ASTM A513Electric-Resistance-Welded Carbon and Alloy Steel Mechanical Tubing
DINDIN2391Seamless Precision Steel Tubes
DIN2393Welding Precision Steel Tubes
DIN2394Cold Drawn Welding  Precision Steel Tubes
ENEN10305Steel Tubes For Precision (Seamless Cold Drawn Tubes)
JISJIS G3445Carbon Steel Tubes for Machine Structural Purposes

Chemical Components and Mechanical Properties
ASTM A519 (ASME SA519) ASTM A513 Chemical Components (Normal Grade)

StandardGradeChemical Components (%)
CSiMnPSMoCrV
ASTM A519MT10100.05-0.15/0.30-0.60≤0.040≤0.050///
MT10150.10-0.20/0.30-0.60≤0.040≤0.050///
MT10200.15-0.25/0.30-0.60≤0.040≤0.050///
1010≤0.10/0.30-0.50≤0.040≤0.050///
10200.18-0.23/0.30-0.60≤0.040≤0.050///
10350.32-0.38/0.60-0.90≤0.040≤0.050///
10450.43-0.50/0.60-0.90≤0.040≤0.050///
41300.28-0.330.15-0.350.40-0.60≤0.040≤0.0400.15-0.250.8-1.10/

ASTM A519 (ASME SA519) ASTM A513 Mechanical Properties ( Normal Grade)

GradeDelivery
Condition
Tensile Strength
(Mpa) Min.
Yield Strength
(Mpa) Min.
Elongation
(%) Min.
Hardness
(HB) Min.
1020HR3452212555
CW483414575
SR4483451072
A3311933050
N3792342260
1035HR4482762072
CW586517588
SR517448880
A4142282567
N4482762072
1045HR5173101580
CW621552590
SR552483885
A4482412072
N5173311580
4130HR6214832089
SR7245861095
A5173793081
N6214142089

DIN2391 Precision Tubes

StandardGradeChemical Components (%)Mechanical Properties(NBK)
C
Max.
Si
Max.
MnPSMoCrVTensile
Strength  (Mpa)
Yield
Strength  (Mpa)
Elonga-tion
(%)
DIN2391ST350.170.35≥0.40≤0.025≤0.0250.25-0.35//340-470≥235≥25
ST450.210.35≥0.40≤0.025≤0.0250.45-0.65//440-570≥255≥21
ST520.220.55≤1.60≤0.025≤0.0250.90-1.20//490-630≥355≥22

EN1030-1, EN10305-2, EN10305-3 Seamless Cold Drawn Tubes

StandardGradeChemical Components(%)Mechanical Properties(+N)
C
Max.
Si
Max.
Mn
Max.
P
Max.
S
Max.
AL
Min.
CrVTensile
Strength (Mpa)
Yield
Strength (Mpa)
Elonga-tion
(%)
EN10305E2150.10.050.70.0250.0250.025//290-430≥215≥25
E2350.170.351.20.0250.025///340-480≥235≥21
E3550.220.551.60.0250.025///490-630≥355≥22

Cold Drawn Precision Tube Delivery Condition

DesignationSymbolDescription
Cold drawn/hard+CNo heat treatment after the final cold drawing process
Cold drawn/soft+LCAfter the final heat treatment there is a suitable drawing pass
Cold drawn and stress relieved+SRAfter the final cold drawing process there is a stress relief heat treatment in a

controlled atmosphere

Annealed+AAfter the final cold drawing process the tubes are annealed in a controlled

atmosphere

Normalized+NAfter the final cold drawing operation the tubes are normalized in a controlled

atmosphere

JIS G3445 (JISF) Carbon Steel Tubes for Machine and Structural usage

StandardGradeChemical Components (%)Mechanical Properties
C
Max.
Si
Max.
Mn
Max.
P
Max.
S
Max.
Nb
Max.
CrVTensile
Strength (Mpa) Min.
Yield
Strength (Mpa) Min.
Elongation
(%) Min.
JIS G3445STKM 11A0.120.350.60.040.04///290/35
STKM 12A0.20.350.60.040.04///34017535
STKM 12B39027525
STKM 12C47035520
STKM 13A0.250.350.30-0.900.040.04///37021530
STKM 13B44030520
STKM 13C51038015
STKM 14A0.30.350.30-1.000.040.04///41024525
STKM 14B50035515
STKM 14C55041015
STKM 15A0.25-0.350.350.30-1.000.040.04///47027522
STKM 15C58043012
STKM 16A0.35-0.450.40.40-1.000.040.04///51032520
STKM 16C62046012
STKM 17A0.45-0.550.40.40-1.000.040.04///55034520
STKM 17C65048010
STKM 18A0.180.551.50.040.04///44027525
STKM 18B49031523
STKM 18C51038015
STKM 19A0.250.551.50.040.04///49031523
STKM 19C55041015
STKM 20A0.250.551.60.040.040.15//54039023

Precision Steel Tubes Production and Testing Equipment

Piercing Machine, Cold Rolling Machine, Cold Drawn Machine, Hydrostatic (Hydro) Testing Machine, etc.

Please send an email directly to cts@ctstubes.com to get a prompt response, instead of leaving messages here. Your email will be replied within 24 hours.

Standard and Product List