The classification, chemical composition, mechanical properties,
hardness, Equivalent steels, specification of grey cast iron
grade VCH70, BЧ70.
Grade: |
VCH70 ( BЧ70 ) |
Classification: |
Cast iron with spheroidal graphite |
Chemical composition in % for grade VCH70
(BЧ70)
C |
Si |
Mn |
Ni |
S |
P |
Cr |
Cu |
3-3.6 |
2.6-2.9 |
0.4-0.7 |
max 0.6 |
max 0.015 |
max 0.1 |
max 0.15 |
max 0.4 |
Mechanical properties under Т=20℃ for grade
VCH70 (BЧ70)
Assortment |
Dimension |
Direct |
sв |
sT |
d5 |
y |
KCU |
Heat treatment |
- |
mm |
- |
MPa |
MPa |
% |
% |
KJ/m2 |
- |
Casting,GOST7293-85 |
|
|
700 |
420 |
2 |
|
|
|
Brinell hardness for VCH70 ( BЧ70
) GOST 7293-85 |
HB 10 -1= 228 - 302 MPa |
Equivalent steels for grade VCH70 (BЧ70)
USA |
- |
100-70-03 |
|
|
Germany |
DIN,WNr |
GGG70 |
|
|
Japan |
JIS |
FCD700 |
|
|
France |
AFNOR |
FGS700-2 |
|
|
England |
BS |
700/2 |
|
|
European |
EN |
EN-GJS-700-2 |
EN-JS1070 |
GJS-700-2 |
Italy |
UNI |
GS700-2 |
|
|
Belgium |
NBN |
FNG70-2 |
|
|
Spain |
UNE |
FGE70-2 |
|
|
China |
GB |
QT700-2 |
|
|
Sweden |
SS |
0737-01 |
|
|
Bulgaria |
BDS |
700-2 |
|
|
Hungary |
MSZ |
GoV70 |
|
|
Poland |
PN |
Zs70002 |
ZS7002 |
|
Romania |
STAS |
FGN70-3 |
|
|
Czechia |
CSN |
422307 |
|
|
Finland |
SFS |
GRP700 |
|
|
Austria |
ONORM |
GGG700 |
SG70 |
|
Australia |
AS |
700-2 |
|
|
Inter |
ISO |
700-2 |
|
|
India |
IS |
SG700/2 |
|
|
Holland |
NEN |
GN70 |
|
|
Luxembourg |
- |
FNG70-2 |
|
|
COPANT |
COPANT |
FMNP70002 |
|
|
Specification:
Mechanical properties:
sв - Tensile strength, [MPa]
sT - Yield stress, [MPa]
d5 - Specific elongation at fracture [%]
y - Reduction of area, [%]
KCU - Impact strength, [kJ/ m2]
HB - Brinell hardness, [MPa]
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