75 steel wire
Chemical Compositions
|
grade
|
(C)%
|
(Si)%
|
(Mn)%
|
(P)%
|
(S)%
|
(Cr)%
|
(Ni) %
|
(Cu) %
|
|
75
|
0.72-0.80
|
0.17-0.37
|
0.50-0.80
|
≤0.035
|
≤0.035
|
≤0.25
|
≤0.30
|
≤0.25
|
|
75A
|
0.72-0.80
|
0.17-0.37
|
0.50-0.80
|
≤0.030
|
≤0.030
|
≤0.25
|
≤0.30
|
≤0.25
|
|
75E
|
0.72-0.80
|
0.17-0.37
|
0.50-0.80
|
≤0.025
|
≤0.020
|
≤0.25
|
≤0.30
|
≤0.25
|
physical properties
|
Grade
|
yield point MPa (≥)
|
tensile strength
σb /MPa (≥)
|
Elongation
δ5 / % (≥)
|
reduction of area
ψ/ % (≥)
|
hardness
|
|
75
|
880
|
1080
|
7
|
30
|
HBS10/3000
no heat treatment≤285
Annealing ≤241
|
grade Comparison
|
China
GB YB
|
American
ASTM
|
Japan
JIS
|
Germany
DIN EN
|
UK
BS EN
|
French
NF EN
|
Russian
rOCT
|
|
75
|
1075
|
SWRH77A
SWRH77B
|
C76D(1.0614)
|
75
|
||
75 Steel Characteristics and Uses
similar performance with 65 steel ,high strength and Elasticity less ,bad Hardenability
similar performance with 65 steel ,high strength and Elasticity less ,bad Hardenability
.Manufacture of spiral springs, leaf springs, and to bear the friction of the machine parts
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Key words：75 steel wire steel wire
[Source：Original]
[Author：web]
[Date：09-01-13]
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