Tubes for Hydraulic Cylinders
Product Specifications
1.Product Description /Specifications
Hydraulic Cylinder Honed Tube
Standard: ASTM A519, DIN2391, EN10204-1
Grade: 1020, C45, ST52, ST52.3, 27SiMn, 25Mn
Technology: Cold Drawn, Cold roll, Honed, Skived, Burnished
Application: construction machinery, metallurgical machinery, plastic machinery, mining machinery, road construction machinery, hydraulic and pneumatic cylinders
Size
Manufacturing Process | Tube ID | Length | Straightness | Dimensional Accuracy | Tolerance on ID | Inner Bore Roughness |
honing | Φ40-800mm | ≤13m | 0.2-0.3mm | H8~H9 | ±8% | <=0.8 um |
Chemical Composition
grade | C | Si | Mn | P | S | Cr | Ni | Cu | V | Al |
1020 | 0.17-0.23 | 0.17-0.37 | 0.35-0.65 | <=0.035 | <=0.035 | <=0.25 | <=0.30 | <=0.25 | - | - |
C45 | 0.42-0.50 | 0.17-0.37 | 0.50-0.80 | <=0.035 | <=0.035 | <=0.25 | <=0.30 | <=0.25 | - | - |
16Mn | 0.13-0.19 | 0.20-0.60 | 1.20-1.60 | <=0.030 | <=0.030 | <=0.030 | <=0.30 | <=0.25 | - | - |
27SiMn | 0.24-0.32 | 1.10-1.40 | 1.10-1.40 | <=0.035 | <=0.035 | <=0.30 | <=0.30 | <=0.20 | - | - |
ST52 | <=0.20 | <=0.50 | <=1.70 | <=0.035 | <=0.035 | <=0.30 | <=0.50 | <=0.30 | <=0.15 | - |
ST52.3 | <=0.18 | <=0.50 | <=1.70 | <=0.030 | <=0.25 | <=0.30 | <=0.50 | <=0.30 | <=0.15 | ≥0.015 |
Mechanical Property
Grade | Cold finished (hard) (BK) | Cold finished (hard) (BK+S) | Hardness | Impact Value (-20°C) J | |||
T.S bN/mm2 | Elongation 85% | T.S bN/mm2 | Y.S SN/mm2 | Elongation 85% | |||
1020 | ≥550 | ≥8 | ≥520 | ≥400 | ≥15 | 170 | -- |
C45 | ≥680 | ≥5 | ≥630 | ≥520 | ≥12 | 190 | -- |
16Mn | ≥640 | ≥5 | ≥600 | ≥520 | ≥14 | 160 | -- |
27SiMn | ≥780 | ≥5 | ≥700 | ≥580 | ≥10 | 220 | -- |
ST52 | ≥660 | ≥8 | ≥620 | ≥520 | ≥15 | 190 | -- |
ST52.3 | ≥660 | ≥8 | ≥620 | ≥520 | ≥15 | 190 | ≥27 |
Size Tolerance(mm)
| ID Tolerance |
| ||||
H7 | H8 | H9 | H10 | H11 | ||
30 | +0.0210 | +0.0330 | +0.0520 | +0.0840 | +0.1300 |
|
>30-50 | +0.0250 | +0.0390 | +0.0620 | +0.1000 | +0.1600 | |
>50-80 | +0.0300 | +0.0460 | +0.0740 | +0.1200 | +0.1900 | |
>80-120 | +0.0350 | +0.0540 | +0.0870 | +0.1400 | +0.2200 | |
>120-180 | +0.0400 | +0.0630 | +0.1000 | +0.1600 | +0.2500 | |
>180-250 | +0.0460 | +0.072 | +0.1150 | +0.1850 | +0.2900 | |
>250-315 | +0.0520 | +0.0810 | +0.1300 | +0.2100 | +0.3200 | |
>315-800 | +0.0570 | +0.0890 | +0.1400 | +0.2300 | +0.3600 | |
OD | Tolerance | OD | Tolerance |
≤Φ40 | ±0.15 | Φ160~200 | ±0.80 |
Φ40~60 | ±0.25 | Φ200~240 | ±1.00 |
Φ60~80 | ±0.30 | Φ240~340 | ±1.50 |
Φ80~100 | ±0.40 | Φ340~440 | ±2.00 |
Φ100~160 | ±0.50 | Φ440~520 | ±2.50 |
2. Product Photos
3. Application
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.