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         Cast Iron Spheroidal Graphite Grade VCH70

 
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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