详情
•Product Specification and technical
data
•inner
Diameter：*****0
•L/D=8～*0
•Hardness of
quenching and tempering：HB**0°～**0°
•Hardness of
nitration：HV**0°～***0°
•Depth of
Nitrated Layer：0.*5～0.7mm
•Fragility of
nitration：≤ Grade
2
•Surface
roughness：Ra0.4
•straightness：0.**5mm
•Hardness of
Cr-coating Layer：HV≥**0HV
•Nitrided
layer
thickness：0.*5～0.*0mm
•Thickness of
Cr-coated Layer：0.8～2.0mm
•Hardness of
bimetallic：HRC*6°～*5°（Ni-based
alloy）
•
• Material
:quality alloy steel
•① *8CrMoALA(JIS
SACM**5)
•② *2CMo(JIS
SCM**0)
•③
9Cr*8MoV
•④
CW6Mo5Cr4V2
•Heat-treatment：
•Nitriding
treatment
•Electroplated
hard-chrome finish
•High-frequency
quenching
•Spray coating
Bimetallic-alloy
•vacuum
quenching
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