Spring steel
1) Grade: 55Si2MnB
2) Size customered
3) Reliable quality

1.We have the entire range of Pipes, Tubes,Plates,Sheets,wire rods (φ1mm-φ40mm),Round Bar,square,hexagonal,flat steel (maximal width: 100mm).

2.tolerance can reach +0mm, -0.3mm

3.refined polishing and buffing

4.Straigthness of the barres can reach 0.2 mm-0.3mm/m length

5.Can make the produce according to customer's requirements including Chemical

Characteristic and application:

Si and Mn increase the elastic strength, yield ratio, hardenability, temper resistance and Anti-relaxation stability.Overheating sensitive is low but there is a great decarburizing tendency.Especially in the high content of Si and Carbon,the carbon is prone to be graphited which cause the steel brittle.Used for the damping plate spring ,coil spring,cylinder valve spring and heat-resistant spring within 250 in the car,tractor and locomotive.