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Ductile iron Grade



Product Detail


 

International Ductile   Iron Grade

China

USA

UK

Germany

Japan

France

Russia

QT 400-15

— 

370-17

GGG-40

FCD 400-15

EN-GJS-400-15

вч40

QT 400-18

AWS 60-40-18

400/18

— 

FCD 400-18

EN-GJS-400-18

— 

QT 450-10

65-45-12

450/10

— 

FCD 450-10

EN-GJS-450-10

вч45

QT 500-7

80-55-06

500/7

GGG-50

FCD 500-7

EN-GJS-500-7

вч50

QT 600-3

80-55-06
  100-70-03

600/3

GGG-60

FCD 600-3

EN-GJS-600-3

вч60

QT 700-2

100-70-03

700/2

GGG-70

FCD 700-2

EN-GJS-700-2

вч70

QT 800-2

120-90-02

800/2

GGG-80

FCD 800-2

EN-GJS-800-2

вч80

QT 900-2

120-90-02

900/2

— 

— 

EN-GJS-900-2

вч100

 

Ductile iron Chemical   composition & Mechanical properties

Material Grade

C (%)

Si (%)

Mn (%)

P (%)

S (%)

Mg

Re

Tensile

Strength (Mpa)

Yield Strength

(Mpa)

Elongation

 (%)

QT 400-15

3.5-3.6

3.0-3.2

<0.5

<0.07

<0.02

0.04

0.02

≥400

≥250

≥15

QT 400-18

3.6-3.8

2.5-2.7

<0.5

<0.08

<0.025

0.03-0.05

0.02-0.03

≥400

≥250

≥18

QT 450-10

3.4-3.9

2.7-3.0

0.2-0.5

<0.07

<0.03

0.06-0.1

0.03-0.1

≥450

≥310

≥10

QT 500-7

3.6-3.8

2.5-2.9

<0.6

<0.08

<0.025

0.03-0.05

0.03-0.05

≥500

≥320

≥7

QT 600-3

3.6-3.8

2.0-2.4

0.5-0.7

<0.08

<0.025

0.035-0.05

0.025-0.045

≥600

≥370

≥3

QT 700-2

3.7-4.0

2.3-2.6

0.5-0.8

<0.08

<0.02

0.035-0.065

0.035-0.065

≥700

≥420

≥2

QT 800-2

3.7-4.0

2.5

<0.5

<0.07

<0.03

— 

— 

≥800

≥480

≥2

QT 900-2

3.5-3.7

2.7-3.0

<0.5

<0.08

<0.025

0.03-0.05

0.025-0.045

≥900

≥600

≥2


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