Electrical Tailgate Spring Wire
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Description
Oil tempered SiCrV-alloyed high tensile spring wire
Oil tempered SiCrV-alloyed high tensile spring wire is used for Electric tailgate spring，It is a high-grade steel wire material for transmission systems and similar medium to high fatigue resistance springs.
Chemical composition
| Steel grades | C | Si | Mn | p | S | Cr | V |
| SAE9254-VHV, SWOSC-VHV, FDSiCrV | 0.50-0.70 |
1.20-1.65 |
0.50-0.80 | ＜0.03 | ＜0.03 | 0.50-1.00 | 0.50-0.20 |
Standard
| EN10270-2 | JIS G3561 | ASTM A401 | SIS |
Physical property
| Diamerer (mm) | Tensile strenght (Mpa) | Rate of reduction in area (Min%) |
| 2.5-5.0 | 2220~2320 | 45 |
Technology requirement:
Oil tempered SiCrV-alloyed high tensile spring wire is used forElectric tail spring . Electric tail spring steel wire is a kind of extra-high strength steel wire, and the steel wire is required to have a toughness of strength ≥2250Mpa and surface shrinkage ≤45% at the same time. The spring fatigue resistance is more than 80,000, and the heat shrinkage is between 3% and 5%. The material has good relaxation properties. EC (Eddy Current) flaw detection by rotary eddy current flaw detector (Circograph) and through-type eddy current flaw detector (Defectomat). The flaw detection depth is 40um.
Application: Oil tempered SiCrV-alloyed high tensile spring wire is used for Car tailgate spring or side door spring.
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