Country

Standard

Equivalent Grades of Ductile iron (SG Iron, Nodular Graphite Iron)

ISO

ISO 1083

400-15
400-18

450-10

500-7

600-3

700-2

800-2

900-2

China

GB 1348

QT400-18

QT450-10

QT500-7

QT600-3

QT700-2

QT800-2

QT900-2

USA

ASTM A536

60-40-18

60-42-10
65-45-12

70-50-05

80-55-06
80-60-03

100-70-03

120-90-02

—

Germany
Austria

DIN 1693

GGG40

—

GGG50

GGG60

GGG70

GGG80

—

European

EN 1563

EN-GJS-400-15
EN-GJS-400-18

EN-GJS-450-10

EN-GJS-500-7

EN-GJS-600-3

EN-GJS-700-2

EN-GJS-800-2

EN-GJS-900-2

Japan

JIS G5502

FCD400

FCD450

FCD500

FCD600

FCD700

FCD800

—

Italy

UNI 4544

GS370-17

GS400-12

GS500-7

GS600-2

GS700-2

GS800-2

—

France

NF A32-201

FGS370-17

FGS400-12

FGS500-7

FGS600-2

FGS700-2

FGS800-2

—

UK

BS 2789

400/17

420/12

500/7

600/7

700/2

800/2

900/2

India

IS 1865

SG370/17

SG400/12

SG500/7

SG600/3

SG700/2

SG800/2

—

Spain

UNF

FGE38-17

FGE42-12

FGE50-7

FGE60-2

FGE70-2

FGE80-2

—

Belgium

NBN 830-02

FNG38-17

FNG42-12

FNG50-7

FNG60-2

FNG70-2

FNG80-2

—

Australia

AS 1831

300-17
400-12

—

500-7

600-3

700-2

800-2

—

Sweden

SS 14 07

0717-02

—

0727-02

0732-03

0737-01

0864-03

—

Norway

NS11 301

SJK-400.3
SJK-400

—

SJK-500

SJK-600

SJK-700

SJK-800