Material
|
ZGMn13
|
ZGMn13Cr2
|
ZGMn17Cr2
|
Composition %
|
Mn 11-14
|
Mn 11-14, Cr 2.5 max
|
Mn 16-19, Cr 2.0 max
|
Hardness
|
229 HB max
|
240 HB max
|
260 HB max
|
Impact
|
147 J/cm2 min
|
80 J/cm2 min
|
50 J/cm2 min
|
Material
|
KmTBCr15Mo2
|
KmTBCr20Mo2
|
KmTBCr26
|
Composition %
|
Cr 13-18, Mo 2.5 max
|
Cr 18-22, Mo 2.5 max
|
Cr 23-28, Mo 1.0 max
|
Hardness
|
53 HRC min
|
58 HRC min
|
55 HRC min
|
Material
|
Hammer Head
|
KmTBCr15Mo2
|
KmTBCr20Mo2
|
Hammer Handle
|
Carbon Steel 40Cr
|
Carbon Steel 40Cr
|
|
Composition %
|
Hammer Head
|
Cr 13-18, Mo 2.5 max
|
Cr 18-22, Mo 2.5 max
|
Hammer Handle
|
Cr 0.80~1.10, Ni ≤0.30
|
Cr 0.80~1.10, Ni ≤0.30
|
|
Hardness
|
Hammer Head
|
53 HRC min
|
58 HRC min
|
Hammer Handle
|
32-36 HRc
|
32-36 HRc
|
|
Impact
|
Hammer Head
|
3.5 J/cm2 min
|
3.0 J/cm2 min
|
Hammer Handle
|
47 J/cm2 min
|
47 J/cm2 min
|