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Seamless Precision Steel Tube
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| Place of Origin | CHANGZHOU, CHINA |
| Brand Name | Joyruns |
| Certification | ISO9000 |
| Model Number | EN10305-2 Precision Tube |
EN10305-2 Welded steel tube for precision machinery parts/cars and cylinder
EN10305-2 Welded Precision steel tube for automobiles
Standard: EN10305-2
Grade: E155,E195,E235,E275,E355
OD. Range:6mm – 114.3mm
Wall thickness: 1mm-15mm
Length: Max length 12M
Type: Seamless
Packaging detail: Bundles with plastic paper packaged or wooden box package
Delivery date: 10-30days
Delivery status: BK(+C), BKS(+SR), BKW(+LC), GBK(+A), NBK(+N)
Applications:
hydraulic system
automobile
precision machinery parts for cars and cylinders.
Auto industry
Oil cylinder tube
Specifications:
Grade and Chemical Composition ( ％ )
|
Grade |
Chemical Composition (%) |
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Steel Name |
Steel Number |
C(Max) |
Si(Max) |
Mn(Max) |
P(Max) |
S(Max) |
Cr |
NI |
Cu |
Mo |
V |
|
|
E155 |
1.0033 |
0.11 |
0.35 |
0.70 |
0.03 |
0.025 |
- |
- |
- |
- |
- |
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|
E195 |
1.0034 |
0.15 |
0.35 |
0.70 |
0.03 |
0.025 |
- |
- |
- |
- |
- |
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E235 |
1.0308 |
0.17 |
0.35 |
1.20 |
0.03 |
0.025 |
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E275 |
1.0225 |
0.21 |
0.35 |
1.40 |
0.03 |
0.025 |
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E355 |
1.0580 |
0.22 |
0.35 |
1.60 |
0.03 |
0.025 |
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Mechanical properties
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Steel Grade |
Minimum values for the delivery condition |
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Steel Name |
Steel Number |
(+C c ) |
(+LC c ) |
(+SR) |
(+A d ) |
(+N)NBK |
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Rm Mpa |
A% |
Rm Mpa |
A% |
Rm Mpa |
ReH Mpa |
A% |
Rm Mpa |
A% |
Rm Mpa |
ReH e Mpa |
A% |
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E155 |
1.0033 |
400 |
6 |
350 |
10 |
350 |
245 |
18 |
260 |
28 |
28 |
270-410 |
155 |
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E195 |
1.0034 |
420 |
6 |
370 |
10 |
370 |
260 |
18 |
290 |
28 |
28 |
300-440 |
195 |
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E235 |
1.0308 |
490 |
6 |
440 |
10 |
440 |
325 |
14 |
315 |
25 |
25 |
340-480 |
235 |
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E275 |
1.0225 |
560 |
5 |
510 |
8 |
510 |
375 |
12 |
390 |
21 |
21 |
410-550 |
275 |
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E355 |
1.0580 |
640 |
4 |
590 |
6 |
590 |
435 |
10 |
450 |
22 |
22 |
490-630 |
355 |
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An Rm: tensile strength; ReH: upper yield strength; A: elongation after fracture
B 1Mpa=1N/mm 2
C Depending on the degree of cold work in the finishing pass the yield strength may nearly be as high as the tensile strength.
D For calculation purposes the following relations are recommended:
For delivery condition +C: ReH≥ 0.8Rm for delivery condition +LC: ReH≥ 0.7Rm
E For calculation purposes the following relation is recommended: ReH≥ 0.5Rm
F For tubes with an outside diameter≤ 30mm and wall thickness≤ 3mm the ReH minimum values are 10Mpa lower than the values given in this table.
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