Cold Rolled Seamless Carbon Tubes with fixed length
Cold Rolled Carbon Seamless Tubes
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Table 1- Chemical composition |
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Steel Grade |
C% |
Si% |
Mn% |
P% |
S% |
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St35 or E235 |
≤0.17 |
≤0.35 |
0.4-1.2 |
≤0.025 |
≤0.025 |
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St45 or E255 |
≤0.21 |
≤0.35 |
0.4-1.1 |
≤0.025 |
≤0.025 |
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St52 or E355 |
≤0.22 |
≤0.55 |
≤1.6 |
≤0.025 |
≤0.025 |
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Table 2 - Mechanical properties at room temperature |
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Delivery condition |
BK |
BKW |
GBK |
NBK |
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steel Grade |
Rm Mpa (Min) |
A %(Min) |
Rm Mpa(Min) |
A %(Min) |
Rm Mpa(Min) |
A %(Min) |
Rm Mpa(Min) |
ReH Mpa(Min) |
A %(Min) |
|
St35 or E235 |
480 |
6 |
420 |
10 |
315 |
25 |
340 to 480 |
235 |
25 |
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St45 or E255 |
580 |
5 |
520 |
8 |
390 |
21 |
440 to 570 |
255 |
21 |
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St52 or E355 |
640 |
4 |
580 |
7 |
450 |
22 |
490 to 630 |
355 |
22 |
Application:
A. Fuel injection lines/nozzles
1. Automotive fields
B. CNG (Compressed Nature Gas) tube-- Burst pressure: 1307Bar, Working Pressure: around 350bar
C. Drive transmission: Steering column elements
D. Gear shafts, hand brake, front axles, airbag inflators, stabilizers, seat fasteners, front-wheel drive shafts
2. Hydraulic Fields
A. Hydraulic circuits (HPL), pneumatic lines, and hydraulic suspension system
B. Hydraulic cylinders (HPZ)
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