DIN 1629 Cold Drawn Precision Seamless Tubes applied in automotive muffler
Brand Name:Huibo
Certification:ISO
Minimum Order Quantity:5tons
Delivery Time:10-15days
Payment Terms:TT/LC
Place of Origin:China
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DIN 1629 Cold Drawn Precision Seamless Tubes
Table 1- Chemical composition | |||||
Steel Grade | C% | Si% | Mn% | P% | S% |
St35 or E235 | ≤0.17 | ≤0.35 | 0.4-1.2 | ≤0.025 | ≤0.025 |
St45 or E255 | ≤0.21 | ≤0.35 | 0.4-1.1 | ≤0.025 | ≤0.025 |
St52 or E355 | ≤0.22 | ≤0.55 | ≤1.6 | ≤0.025 | ≤0.025 |
Table 2 - Mechanical properties at room temperature | |||||||||
Delivery condition | BK | BKW | GBK | NBK | |||||
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 |
St45 or E255 | 580 | 5 | 520 | 8 | 390 | 21 | 440 to 570 | 255 | 21 |
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)
DIN 1629 Cold Drawn Precision Seamless Tubes applied in automotive muffler
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