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  UNI 4544 GS370-17 Ductile Cast Iron  
 

UNI 4544 GS370-17 is a ductile iron material grade used in Italy.

The followings are this material's chemical composition, physical and mechanical properties and equivalent material grades.

The chemical composition of UNI 4544 GS370-17 ductile cast iron:
In standard UNI 4544, there is no requirement to the chemical composition, so the iron foundry could adjust their chemical composition as their experience, but the mechanical properties are the necessary requirement.

The mechanical and physical properties of UNI 4544 GS370-17 ductile cast iron

Tensile strength

Rm

Mpa

370

Yield limit

Rp0,2

Mpa

230

Elongation

A

%

17

Hardness

BHN

 

179 max.

Compression strength

 

Mpa

700

Stress modulus

E

Mpa

169

Density

ρ

Kg/m3

7100

Thermal conductivity

λt

W.m-1.K-1

36,2

Brittle failure resistance

K1c

MPa.m0,5

30

Equivalence

kgf/mm2

 

40.8

Equivalent material grades of UNI 4544 GS370/17 ductile cast iron:

Country

Standard

Material Grade

ISO

ISO 1083

GRADE 400-15/GRADE 400-18

China

GB 1348

QT400-18

USA

ASTM A536

60-40-18

Germany/Austria

DIN 1693

GGG40

European

EN 1563

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

Japan

JIS G5502

FCD400

Italy

UNI 4544

GS370-17

France

NF A32-201

FGS370-17

UK

BS 2789

400/17

Spain

UNF

FGE38-17

Belgium

NBN 830-02

FNG38-17

Australia

AS 1831

GRADE 370-17/GRADE 400-12

Sweden

SS 14 07

0717-02

Norway

NS11 301

SJK-400.3/SJK-400

 

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