Chemical composition:
|
Trademark |
Chemical composition | |||||||
|
C |
Si |
Mn |
P |
S |
Ni |
Cr |
Cu | |
|
≤ | ||||||||
|
60 |
0.57～0.65 |
0.17～0.37 |
0.50～0.80 |
0.035 |
0.035 |
0.30 |
0.25 |
0.25 |
|
65 |
0.62～0.70 |
0.17～0.37 |
0.50～0.80 |
0.035 |
0.035 |
0.30 |
0.25 |
0.25 |
Mechanical properties:
|
Trademark |
The sample blank Size / mm |
Heat treatment process |
Mechanical properties |
/ HBS | |||||||
|
Normalizing |
Quench |
Tempering |
σb/MPa |
σs/MPa |
δ5(％) |
ψ(％) |
Ak/J |
≤ | |||
|
≥ |
Without heat treatment |
Annealed steel | |||||||||
|
60 |
25 |
810 |
|
|
675 |
400 |
12 |
35 |
|
255 |
229 |
|
65 |
25 |
810 |
|
|
695 |
410 |
10 |
30 |
|
255 |
229 |
Characteristics and Uses:
60 steel strength, hardness and elasticity are quite high, but the cold deformation plasticity is low, less cutting, welding and hardenability is also poor, water quenching cracks tend to have only small parts to be quenched, large multi-the use of normalizing for the manufacture of rollers, shafts, eccentric shafts, coil, cam, spring washers, clutch, rope and other larger force, the friction work under conditions of higher strength, abrasion resistance and flexibility of certain parts
65 steel, for the manufacture of springs, coils, various gaskets, clutches and shaft in the manufacture of general machinery, roll, eccentric shaft.
60 steel strength, hardness and elasticity are quite high, but the cold deformation plasticity is low, less cutting, welding and hardenability is also poor, water quenching cracks tend to have only small parts to be quenched, large multi-the use of normalizing for the manufacture of rollers, shafts, eccentric shafts, coil, cam, spring washers, clutch, rope and other larger force, the friction work under conditions of higher strength, abrasion resistance and flexibility of certain parts
65 steel, for the manufacture of springs, coils, various gaskets, clutches and shaft in the manufacture of general machinery, roll, eccentric shaft.
