45Mn High Mechanical Performance Structural Steel Plate
45Mn medium carbon quenched and tempered steel has higher strength, toughness and hardenability than No. 45 steel. After quenching and tempering, it can obtain better comprehensive mechanical properties, good machinability, but poor welding performance, low cold deformation plasticity, and temper brittleness tendency. It is generally used in the quenching and tempering state, but also in the quenching and tempering or normalizing state. It is used to manufacture worn parts, such as rotating shaft, spindle, crankshaft, spline shaft, connecting rod, universal joint shaft, engaging rod, gear, clutch plate, bolt, nut, etc.
Chemical composition of 45Mn High Mechanical Performance Structural Steel Plate
Grade
C
Si
Mn
Cr
P
S
Cu
Ni
45Mn
0.42～0.50
0.17～0.37
0.70～1.00
≤0.25
≤0.035
≤0.035
≤0.25
≤0.25
Mechanical property of Chemical composition of 45Mn High Mechanical Performance Structural Steel Plate
Grade
Yield Strength (MPa)
Ultimate Tensile Strength (MPa)
Elongation at Break (%)
45Mn
≥375
≥620
≥15
Product Introduction of Mechanical property of Chemical composition of 45Mn High Mechanical Performance Structural Steel Plate
Product name
Alloy high strength steel 45Mn DIN 60Si2Mn 55Si2Mn spring steel plate
Standrad
GB JIS ASTM DIN
Thickness
1.5-20mm
Width
1250-2000mm
Technique
Hot rolled,cold rolled
Surface Treatment
Clean, blasting and painting according to customer requirement
Thickness tolerance
±0.1mm
Application
65Mn steel can make a general section size of 8~15mm or so small spring such as a variety of small size flat round spring, bottom spring spring spring, also suitable for the production of spring ring valve spring clutch reed brake spring, etc 65Mnj is one of the materials for making all kinds of board springs and silk springs.
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