Spring Steel Flat Bar
Main specifications: width 44.5~150mm, thickness 5～56mm
Executive standards: GB, JIS，DIN, ASTM and technical agreement
Material characteristics: With excellent comprehensive property, high tensile strength and fatigue limit, high elastic limitation and yield ratio, but also has excellent plasticity and toughness. At the same time, it also has the favorable hardenability and the surface quality. Moreover, it has favorable cold working performance and heat treatment technology property.
Material applications: Mainly used in automobile leaf spring or steering arm of air suspension.
Main Specifications and steel grades of spring steel flat bar：
| Size (mm) |
Steel grades |
Executive standards |
| 44.5～150×5～56 |
60Si2Mn、50CrV、55CrMn 、55SiMnVB、60CrMn、28SiMnB、51CrMnV、52CrMnMoV、60Si2CrV、60CrMnB |
GB/T 33164.1-2016 |
| 60Si2Mn、55SiMnVB、50CrVA、55CrMnA、60CrMnA、28MnSiB、60CrMnBA |
GB/T 1222-2007 |
| SUP6、SUP9、SUP9A、SUP10、SUP11A |
JIS G 4801：2011 |
| 55Cr3、51CrV4、61SiCr7、52CrMoV4 |
EN 10089：2002;EN 10092-1-2003 |
| 5160、5160H、6150、6150H、51B60、51B60H |
ASTM A322;ASTM A304-04 |
| SAE5160、SAE5160H、SAE6150、SAE6150H、SAE51B60、SAE51B60H |
SAE J1268；SAE J404 |
| 52CrMnBA、50CrMnVA、FAS3550、NHS3 |
Protocol standard |
