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 Model Number |
DIN2391/EN10305 |
Precision Steel Tube DIN2391/EN10305
Application
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Cold drawn or cold rolled precision seamless steel tubes for hydraulic pressure and pneumatic services.
For Auto. use,machinery use,oil cylinder tube,motorcycle shock reducer use,auto shock reducer inner cylinder,etc.
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size
O.D.: 6.0-650.0mm W.T.: 1.0-65mm Length: Max.12000mm
Steel Grade and Chemical Composition(%)
| Standard |
Grade |
C≤ |
Si≤ |
Mn |
P≤ |
S≤ |
| DIN17175 |
St35 |
0.17 |
0.35 |
≥0.40 |
0.025 |
0.025 |
| St45 |
0.21 |
0.35 |
≥0.40 |
0.025 |
0.025 |
| St52 |
0.22 |
0.55 |
≤1.60 |
0.025 |
0.025 |
Mechanical Properties
Rm:Tensile Strength(Mpa) ReH:Yield Point(Mpa) A%:Elongation Mpa=N/mm
| Standard |
Grade |
BK |
BKW |
BKS |
GBK |
NBK |
| Rm≤ |
A%≤ |
Rm≤ |
A%≤ |
Rm≤ |
ReH≤ |
A%≤ |
Rm≤ |
A%≤ |
Rm |
ReH≤ |
A%≤ |
| DIN2391 |
St35 |
480 |
6 |
420 |
10 |
420 |
315 |
14 |
315 |
25 |
340-470 |
235 |
25 |
| St45 |
580 |
5 |
520 |
8 |
520 |
375 |
12 |
390 |
21 |
440-570 |
235 |
21 |
| St52 |
640 |
4 |
580 |
7 |
580 |
420 |
10 |
490 |
22 |
490-630 |
355 |
22 |
Steel Grade and Chemical Composition(%)
| Standard |
Grade |
C≤ |
Si≤ |
Mn≤ |
P≤ |
S≤ |
Al |
| EN10305 |
E215 |
0.10 |
0.05 |
0.70 |
0.025 |
0.025 |
≥0.025 |
| E235 |
0.17 |
0.35 |
1.20 |
0.025 |
0.025 |
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| E355 |
0.22 |
0.55 |
1.60 |
0.025 |
0.025 |
/ |
Mechanical Properties For EN10305
Rm:Tensile Strength(Mpa) ReH:Yield Point(Mpa) A%:Elongation Mpa=N/mm
| Grade |
Minimum values for the delivery condition(Exclude +N Rm) |
| +C |
+LC |
+SR |
+A |
+N |
| Rm |
A% |
Rm |
A% |
Rm |
ReH |
A% |
Rm |
A% |
Rm |
ReH |
A% |
| E215 |
430 |
8 |
380 |
12 |
380 |
280 |
16 |
280 |
30 |
290-430 |
215 |
30 |
| E235 |
480 |
6 |
420 |
10 |
420 |
350 |
16 |
315 |
25 |
340-480 |
235 |
25 |
| E355 |
640 |
4 |
580 |
7 |
580 |
450 |
10 |
450 |
22 |
490-630 |
355 |
22 |
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