Standard Precision Seamless Steel Tubes
Product Specifications
1.Product Description /Specifications
Production Range | Outer Diameter：10-120mm (0.4 inch - 4.7 inch) |
Wall Thickness：1-20mm (0.04 inch - 0.78 inch) | |
Material / Grade | Carbon Steel： GB/T 8162 & 8163 & 3639: 10#, 20#, 35#, 45#, 55#, Q235B, Q235C, CF53, A105 ASTM A519: 1010, 1020, 1026, 1035, 1045, 1050 DIN17121/EN 10297-1, DIN1629/DIN2391/EN 10305-1: C10/CK10, C22/CK22, C35/CK35, C45/CK45, CF53 JIS3441/JIS3444/JIS3445: STKM11A, STKM12A/STKM12B/STKM12C, STKM13A/STKM13B/STKM13C JIS G4051: S10C, S20C, S25C, S35C, S45C, S55C |
Alloy Steel： GB/T 8162 & 8163 & 3639: 16Mn(Q345B), 20Cr, 40Cr, 15CrMo, 20CrMo, 28CrMo, 30CrMo, 35CrMo, 42CrMo, 20CrMnTi, 40MnMoV, 20Mn2, ZF6, 16MnCr5, 20MnCr5, 38Mn2V, 09CrCuSb(ND) ASTM A519: 5120, 5140, 4130, 4135, 4140 DIN17121/EN 10297-1, DIN1629/DIN2391/EN 10305-1: ST52, EN10084-1998 20Cr4, 41Cr4, 15CrMo4, 25CrMo4, 35CrMo4, 42CrMo4, 16MnCr5 JIS3441/JIS3444/JIS3445: SCM432/SCRRM3, SCM4 JIS G4053: JIS SCr420, JIS SCr440, SCM415, SCM420 | |
Tolerance | Tolerance ±0.15mm，Superior products ±0.05mm, Can be customized according to customer’s requirements |
Technique | Cold Drawn / Cold Rolled |
Shape | Round |
Further Processing for Steel Tubes | Final Annealing, Cutting, Chamfer, Threading, Inner diameter or Outer Diameter Lathe, Surface Shot Blasting, Laser Marking |
2. Product Photos
Cold Drawn Steel Tube
Cold Rolled Steel Tube
Cold Drawn VS Cold Rolled Steel Tubes
3. Cold Drawn VS Cold Rolled Technics
Cold Drawing
1. Through special alloy steel mould cold drawn forming
2. Small deformation
3. Inside and outside surface bright and clean
4. Hardness moderate
5. Suitable for machining
6. Special shape tube necessary procedure
Cold Rolling
1. Through the roller repeatedly rolling the outer surface forming
2. Large deformation
3. Outer surface bright with a mirror effect
4. High hardness
5. Suitable for terminal products
6. High surface requirement tube necessary procedure
Combination of Cold Drawing and Cold Rolling
1. High-end products adopt the combination mode of cold drawn and cold rolled.
2. Suitable for subsequent machining
3. Perfect surface
Examples: rifle barrel, shock absorber
4. Application
| Auto Parts | Drilling | Engineering Machinery |
| Machining | Tunnel Support | Agricultural Machinery Parts |
| Liquid Conveyance | Transmission |
5. International Steel Grade Table
International Steel Grade Table | ||||||
China | ASTM A519 | DIN | JIS 3445 | JIS G4051 | 俄罗斯гOCT4543-71 | |
Carbon Steel | 10# | 1010 | DC01(1.0330) DC03(1.0347) | STKM11A | S10C | 10 |
| 15# | 1015 | C15C(1.0234) | S15C | 15 | ||
20# | 1020 | C20C(1.0411) | STKM12A/STKM12B/ STKM12C | S20C | 20 | |
25# | 1025 | C25(1.0406) | STKM13A/STKM13B/ STKM13C | S25C | 25 | |
| 30# | 1030 | C30(1.0528) | S30C | 30 | ||
35# | 1035 | C35(1.0501) | S35C | 35 | ||
| 40# | 1040 | C40(1.0511) | S40C | 40 | ||
45# | 1045 | C45(1.0503) | S45C | 45 | ||
| 50# | 1050 | C50(1.0540) | S50C | 50 | ||
55# | 1055 | C55(1.0535) | S55C | 55 | ||
| 60# | 1060 | C60(1.0601) | S58C | 60 | ||
| 65# | 1065 | C66D(1.0612) | SWRH67B | 65 | ||
| 70# | 1070 | C70D(1.0615) | SWRH72A SWRH72B | 70 | ||
| 75# | 1075 | C76D(1.0614) | SWRH77A SWRH77B | 75 | ||
| 80# | 1080 | C80D(1.0622) | SWRH82A SWRH82B | 80 | ||
| 85# | 1084 | D86D(1.0616) | SWRH82A SWRH82B | 85 | ||
CF53 | 1050 | CF53 | ||||
| Q345A | Grade 50[345] | E3359(1.0060) | SPFC 590 | 345 | ||
| Q345B | S355JR(1.0045) | |||||
| Q345C | S355JO(1.0553) | |||||
| Q345D | S355J2(1.0577) | |||||
| Q345E | S355NL(1.0546) | |||||
| Q390A | Grade 55[380] | STKT 540 | 390 | |||
| Q390B | ||||||
| Q390C | ||||||
| Q390D | / | |||||
| Q390E | ||||||
| Q420A | Grade 60[415] | S420NL(1.8912) S420ML(1.8836) | SEV 295 | |||
| Q420B | ||||||
| Q420C | ||||||
| Q420D | ||||||
| Q420E | ||||||
| Q460C | Grade 65[450] | S460NL(1.8903) S460ML(1.8838) | SM570 | |||
| Q460D | SMA570W | |||||
| Q460E | SMA570P | |||||
| Q235A | Grade D/Grade33[230] | SS400 | СтЗKП | |||
Q235B | Grade D/Grade33[230] | СтЗKП | ||||
Q235C | Grade D/Grade33[230] | СтЗСП | ||||
| Q235D | Grade D/Grade33[230] | СтЗСП | ||||
| Q275 | SS Grade40[275] | S275JR(1.0044) S275JO(1.0143) S275J2(1.0145) | SS490 | Ст5ПС Ст5СП | ||
| 15Mn | 1016 | SWRCH16K | 15Γ | |||
| 15MnA | 15ΓΑ | |||||
| 15MnE | 15ΓШ | |||||
| 65Mn | 1566 | SWRH67B | 65Γ | |||
| 65MnA | 65ΓΑ | |||||
65MnE | ||||||
Alloy Steel | 16Mn(Q345B） | St52 | ||||
20Cr | 5120 | 20Cr4 (EN 10084-1998) | JIS SCr420( JIS G4053) | |||
40Cr | 5140 | 41Cr4(1.7035) | JIS SCr440( JIS G4053) | |||
15CrMo | 15CrMo4 | SCM415 (JIS 4053) | ||||
20CrMo | 25CrMo4(1.7218) | SCM420 (JIS 4053) | ||||
28CrMo | ||||||
30CrMo | 4130 | |||||
35CrMo | 4135 | 35CrMo4(1.7220) | SCM432/SCRRM3 | |||
42CrMo | 4140 | 42CrMo4(1.7225) | SCM4 | |||
20CrMnTi | ||||||
40MnMoV | ||||||
20Mn2 | 1524 | P355GH(1.0473) | SMn420 | |||
| 30Mn2 | 1330 | 28Mn6(1.1170) | SMn433 | 30г2 | ||
| 35Mn2 | 1335 | SMn438 | 35г2 | |||
| 40Mn2 | 1340 | SMn438 | 40г2 | |||
| 45Mn2 | 1345 | SMnC443 | 45г2 | |||
| 50Mn2 | 50г2 | |||||
| 40B | 1040 | 38B2(1.5515) | ||||
| 45B | 1045 | |||||
| 50B | 1050 | |||||
| 40MnB | 1541 | 37MnB5(1.5538) | ||||
| 45MnB | 1547 | |||||
| 15Cr | 5115 | 17Cr3(1.7016) | SCr415 | 15X | ||
| 15CrA | 5115 | 17Cr3(1.7016) | SCr415 | 15XA | ||
| 20Cr | 5120 | 17Cr3(1.7016) | SCr420 | 20X | ||
| 30Cr | 5130 | 28Cr4(1.7030) | SCr430 | 30X | ||
| 35Cr | 5135 | 34Cr4(1.7033) | SCr435 | 35X | ||
| 40Cr | 5140 | 41Cr4(1.7035) | SCr440 | 40X | ||
| 45Cr | 5145 | SCr445 | 45X | |||
| 50Cr | 5150 | 50X | ||||
| 38CrSi | 38XC | |||||
| 15CrMo | 18CrMo4(1.7243) | SCM415 | 15XM | |||
| 20CrMo | 4118 | 18CrMo4(1.7243) | SCM420 | 20XM | ||
| 30CrMo | 4130 | 25CrMo4(1.7218) | SCM430 | 30XM | ||
| 30CrMoA | 4130 | 25CrMo4(1.7218) | SCM430 | 30XMA | ||
| 35CrMo | 4135 | 34CrMo4(1.7220) | SCM435 | 35XM | ||
| 35CrMoV | 4135 | 34CrMo4(1.7220) | SCM435 | 40XMφA | ||
| 42CrMo | 4142 | 42CrMo4(1.7225) | SCM440 | |||
ZF6 | 16MnCr5(1.7131) | |||||
16MnCr5 | ||||||
20MnCr5 | ||||||
38Mn2V | ||||||
36Mn2V | ||||||
09CrCuSb(ND钢) | ||||||
Steel Tube Standard | Seamless Steel Tubes for Structural Purposes GB/T 8162-2018 | ASTM A519 | DIN17121/EN 10297-1 | JIS3441/JIS3444/JIS3445 | ||
Seamless Steel Pipes for Liquid Service GB/T 8163-2018 | ASTM A106 | |||||
Seamless Cold-drawn or Cold-rolled Steel Tubes for Precision Applications GB/T 3639-2009 | DIN1629/DIN2391/ EN 10305-1 | |||||
Cold Drawn Shaped Steel Tubes GB/T 3094-2012 | ASTM A500 / ASME SA500 | |||||
Seamless Steel Tubes for Automobile Stabilizer Bar GB/T 33821-2017 | ||||||
Rebar Coupler Standard | Couplers for Rebar Mechanical Splicing JG/T 163-2013 | |||||
Certificate
Our Certificate：
| ISO 9001 | IATF 16949 |
Why Choose Tenjan?
(1) Large Scale Production，Strong R&D Capability
The annual production capacity can reach 60,000 tons under years of development. Every-year R&D investment and a team of technicians enable Tenjan with strong R&D capability. Tenjan has full system of production with advanced equipment, such as perforation, pickling, cold rolling, cold drawing, straightening, flaw detection, tensile test and machining.
(2) Quality Control
Every batch of products can be traced and guaranteed by the raw material certificate and steel tube quality certificate. Complete quality control system, following ISO9001, to ensure a full inspection process such as pull force test, chemical composition test and eddy current detection.
(3) Certification
The chairman of Tenjan, Mr. Wensheng Gu, is one of the major constitutors of national standard Couplers for Rebar Mechanical Splicing JG/T 163-2013. And Tenjan has won the Quality System Certificates of ISO9001 and IATF16949.
(4) Major Customer Case
We have long-term relationship with customers such as BMW, MCC, CNNP, CRRC, Midea, Sinohydro, China Pingmei, China Academy of Building Research and so on.
(5) Export Countries
Our products were exported to Europe, America, Japan, South Korea, The Middle East, Southeast Asia and in total six continents over 20 countries, and which has been consistently trusted by customers.
(6) Customer Service
Tenjan provides considerate service to every customer with fast feedback, quality track and technical support.