Seamless Cold Drawn Precision Tubes and Pipes
| Product Name | Standard | Grade | Size Range O.D. mm |
Usage |
| Seamless Cold Drawn Precision Tubes | JIS G3445 | STKM 11A, STKM 12A, STKM 12B, STKM 12C, STKM 13A, STKM 13B, STKM 13C, STKM 15A, STKM 15C, STKM 17A, STKM 17C, STKM 18A | 6.00 to 88.90 | Mechanical and Automobile Precision Tubes |
| DIN2391 | ST35, ST45, ST52 | 6.00 to 76.00 | Seamless Precision Tubes | |
| ASME/ ASTM SA/A519 | SAE1010,
SAE1020, SAE1025, SAE1026, SAE1035, SAE1045, SAE4130 |
6.00 to 340.00 | Mechanical Precision Tubes | |
| EN10305-1 | E215, E235, E335 | 6.00 to 340.00 | Hydraulic Pressure Equipment | |
| ISO8535-1 | ST35, ST37, ST52 | 6.00 to 16.00 | High Precision High Pressure Fuel Pipes | |
| Cold Drawn Welded Precision Tubes | ASTM A513 | MT1010, 1015, 1020 | 21.70 to 90.00 | Automobile Shock Absorber Cylinder, Front and Rear Axle Structural Purpose,
Director Tubes, Engine Hydraulic Tubes |
| EN10305-2 | E215, E235, E335 | 10.00 to 90.00 | ||
| DIN2393 | S215, S235, S355 | 10.00 to 90.00 | ||
| DIN2394 | S215, S235, S355 | 10.00 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
| COUNTRY | STANDARD | Name |
| ASTM | ASTM A519 | Seamless Carbon and Alloy Steel Mechanical Tubing |
| ASTM A513 | Electric-Resistance-Welded Carbon and Alloy Steel Mechanical Tubing | |
| DIN | DIN2391 | Seamless Precision Steel Tubes |
| DIN2393 | Welding Precision Steel Tubes | |
| DIN2394 | Cold Drawn Welding Precision Steel Tubes | |
| EN | EN10305 | Steel Tubes For Precision (Seamless Cold Drawn Tubes) |
| JIS | JIS G3445 | Carbon Steel Tubes for Machine Structural Purposes |
Chemical Components and Mechanical Properties
ASTM A519 (ASME SA519) ASTM A513 Chemical Components (Normal Grade)
| Standard | Grade | Chemical Components (%) | |||||||
| C | Si | Mn | P | S | Mo | Cr | V | ||
| ASTM A519 | MT1010 | 0.05-0.15 | / | 0.30-0.60 | ≤0.040 | ≤0.050 | / | / | / |
| MT1015 | 0.10-0.20 | / | 0.30-0.60 | ≤0.040 | ≤0.050 | / | / | / | |
| MT1020 | 0.15-0.25 | / | 0.30-0.60 | ≤0.040 | ≤0.050 | / | / | / | |
| 1010 | ≤0.10 | / | 0.30-0.50 | ≤0.040 | ≤0.050 | / | / | / | |
| 1020 | 0.18-0.23 | / | 0.30-0.60 | ≤0.040 | ≤0.050 | / | / | / | |
| 1035 | 0.32-0.38 | / | 0.60-0.90 | ≤0.040 | ≤0.050 | / | / | / | |
| 1045 | 0.43-0.50 | / | 0.60-0.90 | ≤0.040 | ≤0.050 | / | / | / | |
| 4130 | 0.28-0.33 | 0.15-0.35 | 0.40-0.60 | ≤0.040 | ≤0.040 | 0.15-0.25 | 0.8-1.10 | / | |
ASTM A519 (ASME SA519) ASTM A513 Mechanical Properties ( Normal Grade)
| Grade | Delivery Condition |
Tensile Strength (Mpa) Min. |
Yield Strength (Mpa) Min. |
Elongation (%) Min. |
Hardness (HB) Min. |
| 1020 | HR | 345 | 221 | 25 | 55 |
| CW | 483 | 414 | 5 | 75 | |
| SR | 448 | 345 | 10 | 72 | |
| A | 331 | 193 | 30 | 50 | |
| N | 379 | 234 | 22 | 60 | |
| 1035 | HR | 448 | 276 | 20 | 72 |
| CW | 586 | 517 | 5 | 88 | |
| SR | 517 | 448 | 8 | 80 | |
| A | 414 | 228 | 25 | 67 | |
| N | 448 | 276 | 20 | 72 | |
| 1045 | HR | 517 | 310 | 15 | 80 |
| CW | 621 | 552 | 5 | 90 | |
| SR | 552 | 483 | 8 | 85 | |
| A | 448 | 241 | 20 | 72 | |
| N | 517 | 331 | 15 | 80 | |
| 4130 | HR | 621 | 483 | 20 | 89 |
| SR | 724 | 586 | 10 | 95 | |
| A | 517 | 379 | 30 | 81 | |
| N | 621 | 414 | 20 | 89 |
DIN2391 Precision Tubes
| Standard | Grade | Chemical Components (%) | Mechanical Properties（NBK) | |||||||||
| C Max. |
Si Max. |
Mn | P | S | Mo | Cr | V | Tensile Strength (Mpa) |
Yield Strength (Mpa) |
Elonga-tion (%) |
||
| DIN2391 | ST35 | 0.17 | 0.35 | ≥0.40 | ≤0.025 | ≤0.025 | 0.25-0.35 | / | / | 340-470 | ≥235 | ≥25 |
| ST45 | 0.21 | 0.35 | ≥0.40 | ≤0.025 | ≤0.025 | 0.45-0.65 | / | / | 440-570 | ≥255 | ≥21 | |
| ST52 | 0.22 | 0.55 | ≤1.60 | ≤0.025 | ≤0.025 | 0.90-1.20 | / | / | 490-630 | ≥355 | ≥22 | |
EN1030-1, EN10305-2, EN10305-3 Seamless Cold Drawn Tubes
| Standard | Grade | Chemical Components(%) | Mechanical Properties（+N) | |||||||||
| C Max. |
Si Max. |
Mn Max. |
P Max. |
S Max. |
AL Min. |
Cr | V | Tensile Strength (Mpa) |
Yield Strength (Mpa) |
Elonga-tion (%) |
||
| EN10305 | E215 | 0.1 | 0.05 | 0.7 | 0.025 | 0.025 | 0.025 | / | / | 290-430 | ≥215 | ≥25 |
| E235 | 0.17 | 0.35 | 1.2 | 0.025 | 0.025 | / | / | / | 340-480 | ≥235 | ≥21 | |
| E355 | 0.22 | 0.55 | 1.6 | 0.025 | 0.025 | / | / | / | 490-630 | ≥355 | ≥22 | |
Cold Drawn Precision Tube Delivery Condition
| Designation | Symbol | Description | |||||||
| Cold drawn/hard | +C | No heat treatment after the final cold drawing process | |||||||
| Cold drawn/soft | +LC | After the final heat treatment there is a suitable drawing pass | |||||||
| Cold drawn and stress relieved | +SR | After the final cold drawing process there is a stress relief heat treatment in a
controlled atmosphere |
|||||||
| Annealed | +A | After the final cold drawing process the tubes are annealed in a controlled
atmosphere |
|||||||
| Normalized | +N | After the final cold drawing operation the tubes are normalized in a controlled
atmosphere |
|||||||
JIS G3445 (JISF) Carbon Steel Tubes for Machine and Structural usage
| Standard | Grade | Chemical Components (%) | Mechanical Properties | |||||||||
| C Max. |
Si Max. |
Mn Max. |
P Max. |
S Max. |
Nb Max. |
Cr | V | Tensile Strength (Mpa) Min. |
Yield Strength (Mpa) Min. |
Elongation (%) Min. |
||
| JIS G3445 | STKM 11A | 0.12 | 0.35 | 0.6 | 0.04 | 0.04 | / | / | / | 290 | / | 35 |
| STKM 12A | 0.2 | 0.35 | 0.6 | 0.04 | 0.04 | / | / | / | 340 | 175 | 35 | |
| STKM 12B | 390 | 275 | 25 | |||||||||
| STKM 12C | 470 | 355 | 20 | |||||||||
| STKM 13A | 0.25 | 0.35 | 0.30-0.90 | 0.04 | 0.04 | / | / | / | 370 | 215 | 30 | |
| STKM 13B | 440 | 305 | 20 | |||||||||
| STKM 13C | 510 | 380 | 15 | |||||||||
| STKM 14A | 0.3 | 0.35 | 0.30-1.00 | 0.04 | 0.04 | / | / | / | 410 | 245 | 25 | |
| STKM 14B | 500 | 355 | 15 | |||||||||
| STKM 14C | 550 | 410 | 15 | |||||||||
| STKM 15A | 0.25-0.35 | 0.35 | 0.30-1.00 | 0.04 | 0.04 | / | / | / | 470 | 275 | 22 | |
| STKM 15C | 580 | 430 | 12 | |||||||||
| STKM 16A | 0.35-0.45 | 0.4 | 0.40-1.00 | 0.04 | 0.04 | / | / | / | 510 | 325 | 20 | |
| STKM 16C | 620 | 460 | 12 | |||||||||
| STKM 17A | 0.45-0.55 | 0.4 | 0.40-1.00 | 0.04 | 0.04 | / | / | / | 550 | 345 | 20 | |
| STKM 17C | 650 | 480 | 10 | |||||||||
| STKM 18A | 0.18 | 0.55 | 1.5 | 0.04 | 0.04 | / | / | / | 440 | 275 | 25 | |
| STKM 18B | 490 | 315 | 23 | |||||||||
| STKM 18C | 510 | 380 | 15 | |||||||||
| STKM 19A | 0.25 | 0.55 | 1.5 | 0.04 | 0.04 | / | / | / | 490 | 315 | 23 | |
| STKM 19C | 550 | 410 | 15 | |||||||||
| STKM 20A | 0.25 | 0.55 | 1.6 | 0.04 | 0.04 | 0.15 | / | / | 540 | 390 | 23 | |
Precision Steel Tubes Production and Testing Equipment
Piercing Machine, Cold Rolling Machine, Cold Drawn Machine, Hydrostatic (Hydro) Testing Machine, etc.
