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JF high lead series

  • parameters

JF series materials, also known as bimetallic materials or copper lead steel strips, are made of low carbon steel or steel coil as the base material, and the surface is sintered with copper alloy steel and copper alloy products. Different copper alloy materials are suitable for different working conditions. The surface copper alloy grades can be divided into high lead series, lead series and lead-free series.


Alloy grade Name Main chemical composition %Alloy hardness HB Steel layer hardness HB Main use occasion 
cupbsnznniBi
CuPb24Sn4JF720margin19.0~27.03.0~4.555~80110~140Bushing, bearing bush, thrust piece
CuPb24Sn1JF750margin19.0~27.00.6~2.055~80110~140
CuPb22Sn3JF750margin19.0~24.02.0~4.055~80110~140
CuPb20Sn4JF760margin17.0~22.03.0~4.555~80110~140
CuPb22Sn1JF770margin19.0~25.00.6~2.055~80110~140
CuPb30JF700margin28.0~32.00.5~1.530~4590~120bushing


1、The 20-4 material in the above table is tested by the Locomotive Department (Qishuyan) Product Quality Supervision and Inspection Center Locomotive and Vehicle Parts Inspection Station. The measured fatigue strength of the Glacier.vandere11 sapphire bearing fatigue tester in the UK is greater than 150Mpa.

2、"-" is not detected.