DOM Steel Tubes
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Instruction
EN10305-2 Welded Precision Cold Drawn Steel Tubes
Applications:
for Auto industry/for machinery use/Oil Cylinder Tube/Motorcyle shock absorber
Auto shock absorber innder cylinder/Telescopic Cylinders
Size range: O.D.:6-350mm W.T.:1-35mm L:max12000mm
Characteristic: High preicision with smooth ID tolerance and roughness
Steel Grade and Chemical Compositions:
Steel Grade | C | Si | Mn | P | S | |
Steel name | Steel number | max | max | max | max | max |
E155 | 1.0033 | 0.11 | 0.35 | 0.70 | 0.025 | 0.025 |
E195 | 1.0034 | 0.15 | 0.35 | 0.70 | 0.025 | 0.025 |
E235 | 1.0308 | 0.17 | 0.35 | 1.20 | 0.025 | 0.025 |
E275 | 1.0225 | 0.21 | 0.35 | 1.40 | 0.025 | 0.025 |
E355 | 1.0580 | 0.22 | 0.35 | 1.60 | 0.025 | 0.025 |
Mechanical properties at room temperature | |||||||||||||
Steel grade | Minimum values for the delivery conditiona b | ||||||||||||
Steel name | (+Cc) | (+LCc) | (+SR) | (+Ad) | (+N) | ||||||||
Rm Mpa | A % | Rm Mpa | A % | Rm Mpa | ReH Mpa | A % | Rm Mpa | A % | Rm Mpa | ReHe Mpa | A % | ||
E155 | 1.0033 | 400 | 6 | 350 | 10 | 350 | 245 | 18 | 260 | 28 | 270-410 | 155 | 28 |
E195 | 1.0034 | 420 | 6 | 370 | 10 | 370 | 260 | 18 | 290 | 28 | 300-440 | 195 | 28 |
E235 | 1.0308 | 490 | 6 | 440 | 10 | 440 | 325 | 14 | 315 | 25 | 340-480 | 235 | 25 |
E275 | 1.0225 | 560 | 5 | 510 | 8 | 510 | 375 | 12 | 390 | 21 | 410-550 | 275 | 21 |
E355 | 1.0580 | 640 | 4 | 590 | 6 | 590 | 435 | 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
Note: Special steel grade is also available, according to customer request.
Details of the DOM Tubing:
For Application of:
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- Email : sales@steel-tubes.com