TORICH INTERNATIONAL LIMITED
TORICH INTERNATIONAL LIMITED The Steel Tube Maker
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EN10305-1 Telescopic Cylinders Gas Cylinder Tube with Cold Processing Production
Standard: EN10305-1 Seamless Cold Drawn/Rolling Steel Tubes
Steel Tubes for precision applications.
Applications: for Gas Cylinder Applications, Oil Cylinders/Telescopic Cylinders
Size Range: O.D.:6-380mm W.T.:1-35mm L:max12000mm
Steel Grade: E235, E355,E215 etc
Note: Special steel grade is also available, according to customer request.
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
| 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 | 450 | 10 | 450 | 22 | 490-630 | 355 | 22 |
