Material Standard
|
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 Standard
|
ZGCr12SiMn-GT
|
ZGCr15SiMn-GT
|
Composition %
|
Cr 12-14, Si 1.2 max, Mn 0.5-2.0,
|
Cr 15-17, Si 1.2 max, Mn 0.5-2.0,
|
Hardness
|
55 HRC min
|
55 HRC min
|
Impact
|
3.2 J/cm2 min
|
3.5 J/cm2 min
|