DIN2391 GALVANIZED STEEL TUBES with High Precision for jack lifting systems
Brand Name:Torich
Certification:ISO9001-2000, TS16949
Model Number:EN10305-1 Precision steel tubes
Minimum Order Quantity:5 tons
Delivery Time:45-60 days
Payment Terms:T/T, L/C
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Daqiao Developing Zone Haiyan,Zhejiang Province,China
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Standard: EN10305-1 Seamless cold drawn/rolling steel tubes
Steel tubes for precision applications,Technical delivery conditions.
Size range: O.D.:6-350mm W.T.:1-35mm L:max12000mm
Applications: for Auto industry/for machinery use/Oil Cylinder
Tube/Motorcyle shock absorber Auto shock absorber innder
cylinder/Telescopic Cylinders
Steel Grade and Chemical Compositions:
| Steel Grade | C | Si | Mn | P | S | Al | |
| Steel name | Steel number | max | max | max | max | max | min |
| E215 | 1.0212 | 0.10 | 0.05 | 0.70 | 0.025 | 0.025 | 0.025 |
| E235 | 1.0308 | 0.17 | 0.35 | 1.20 | 0.025 | 0.025 | - |
| E355 | 1.0580 | 0.22 | 0.55 | 1.60 | 0.025 | 0.025 | - |
| Mechanical properties at room temperature | |||||||||||||
| Steel grade | Minimum values for the delivery condition | ||||||||||||
| Steel name | steel nubmer | (+Cc) | (+LCc) | (+SR) | (+Ad) | (+N) NBK | |||||||
| Rm Mpa | A % | Rm Mpa | A % | Rm Mpa | ReH Mpa | A % | Rm Mpa | A % | Rm Mpa | ReH Mpa | A % | ||
| E215 | 1.0212 | 430 | 8 | 380 | 12 | 380 | 280 | 16 | 280 | 30 | 290-430 | 215 | 30 |
| E235 | 1.0308 | 480 | 6 | 420 | 10 | 420 | 350 | 16 | 315 | 25 | 340-480 | 235 | 25 |
| E355 | 1.0580 | 640 | 4 | 580 | 7 | 580 | 450f | 10 | 450 | 22 | 490-630 | 355 | 22 |
aRm: tensile strength; ReH: upper yield strength; A: elongation
after fracture
b 1Mpa=1N/mm2
c Depending on the degree of cold work in the finishing pass the
yield strength may nearly be as high as the tensile strength.
For calculation purposes the following relations are recommended:
for delivery condition +C: ReH ≥0.8 Rm
for delivery condition +LC: ReH ≥0.7 Rm
d For calclulation purposes the following relation is
recommended:ReH≥0.5Rm e For tubes with outside diameter ≤30mm and wall thickness ≤3mm the
ReH minimim values are 10Mpa lower than the values given in this
Table
f For tubes with outside diameter＞160mm: ReH≥420Mpa
Note: Special steel grade is also available, according to customer request.
DIN2391 GALVANIZED STEEL TUBES with High Precision for jack lifting systems
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