Sand Casting, Investment Casting and Die Casting in China

Iron Comparison- Gray Iron and Ductile Iron

Gray Iron,

Gray iron or grey iron was the original “cast iron”. It is an alloy of carbon, silicon, and iron, containing from 1.7 to 4.5% C and 1 to 3% Si. It is relatively easy and inexpensive to make. Compared to the more modern engineered irons, gray iron has a lower tensile strength and lower ductility.

Standard
Grey Iron Grade
China
HT350
HT300
HT250
HT200
HT150
HT100
Japene
FC350
FC300
FC250
FC200
FC150
FC100
ASTM A48
NO.60
NO.50
NO.45
NO.35
NO.30
NO.20
Gost 1412
CЧ40
CЧ35
CЧ30
CЧ25
CЧ20
CЧ15
CЧ10
DIN 1691
GG40
GG35
GG30
GG25
GG20
GG15
ITALY
G35
G30
G25
G20
G15
G10
France
FGL400
FGL350
FGL300
FGL250
FGL200
FGL150
BS
350
300
250
200
150
100
Poland
Z140
Z135
Z130
Z125
Z120
Z115
IS 6331
FG400
FG350
FG300
FG260
FG200
FG150
Romania
FC400
FC350
FC300
FC250
FC200
FC150
Spain
FG35
FG30
FG25
FG20
FG15
Belgium
FGG40
FGG35
FGG30
FGG25
FGG20
FGG15
FGG10
Australia
T400
T350
T300
T260
T220
T150
Sweden
O140
O135
O130
O125
O120
O115
O110
Hungary
OV40
OV35
OV30
OV25
OV20
OV15
Bulgaria
Vch35
Vch30
Vch25
Vch20
Vch15
ISO 185
350
300
250
200
150
100
泛美标准
FG400
FG350
FG300
FG250
FG200
FG150
FG100
Taiwan
FC300
FC250
FC200
FC150
FC100
Netherlands
GG35
GG30
GG25
GG20
GG15
Luxemburg
FGG40
FGG35
FGG30
FGG25
FGG20
FGG15
Austria
GG35
GG30
GG25
GG20
GG15

Ductile iron, also called ductile cast iron, spheroidal graphite iron, or nodular cast iron, is a type of cast iron invented in 1943 by Keith Millis. While most varieties of cast iron are brittle, ductile iron is much more flexible and elastic, due to its nodular graphite inclusions.

Standard
Ductile Iron Grade
China QT400-18 QT450-10 QT500-7 QT600-3 QT700-2 QT800-2 QT900-2
Japanese FCD400 FCD450 FCD500 FCD600 FCD700 FCD800
ASTM 60-40-18 65-45-12 70-50-05 80-60-03 100-70-03 120-90-02
Gost BЧ40 BЧ45 BЧ50 BЧ60 BЧ70 BЧ80 BЧ100
DIN GGG40 GGG50 GGG60 GGG70 GGG80
Italy GS370-17 GS400-12 GS500-7 GS600-2 GS700-2 GS800-2
France FGS370-17 FGS400-12 FGS500-7 FGS600-2 FGS700-2 FGS800-2
BS 400/17 420/12 500/7 600/7 700/2 800/2 900/2
Porland ZS3817 ZS4012 ZS 4505 ZS6002 ZS7002 ZS8002 ZS9002
    5002
is SG370/17 SG400/12 SG500/7 SG600/3 SG700/2 SG800/2
Romania FGN70-3
Spain FGE38-17 FGE42-12 FGE50-7 FGE60-2 FGE70-2 FGE80-2
Belguim FNG38-17 FNG42-12 FNG50-7 FNG60-2 FNG70-2 FNG80-2
Australia 300-17 400-12 500-7 600-3 700-2 800-2
Sweden 0717-02 0727-02 0732-03 0737-01 0864-03
Hungary GǒV38 GǒV40 GǒV50 GǒV60 GǒV70
Bulgaria 380-17 400-12 450-5   600-2 700-2 800-2 900-2
  500-2  
ISO 400-18 450-10 500-7 600-3 700-2 800-2 900-2
(COPANT) FMNP45007 FMNP55005 FMNP65003 FMNP70002
Finland GRP400 GRP500 GRP600 GRP700 GRP800
Holand GN38 GN42 GN50 GN60 GN70
Luxemburg FNG38-17 FNG42-12 FNG50-7 FNG60-2 FNG70-2 FNG80-2
Austria SG38 SG42 SG50 SG60 SG70

You can download : Iron Comparison.pdf

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Sand Casting, Investment Casting and Die Casting in China