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  ISO 1083 Grade 800-2 Ductile Cast Iron  
 

ISO 1083 JS 800-2 has the highest strength and lowest ductility compared to the other variants of ductile cast iron.

Chemistry requirements are not specified in the ISO 1083 standard. The iron foundries could adjust the chemical components according to their experience and production conditions, as long as they could meet the mechanical properties.

Main Chemistry Composition of ISO 1083/JS/800-2

Reference analysis for medium wall thicknesses

C

Si

Mn

Microstructure

3.50 – 3.70

2.30 – 2.60

0.40 max

Pearlite

The followings are the mechanical properties, physical properties and technological properties of ISO 1083/JS/800-2 ductile cast iron:

Mechanical Properties1) of ISO 1083/JS/800-2

Tensile strength

Rm

MPa

800

0.2 yield strength

Rp0.2

MPa

480

Elongation at fracture

A5

%

2

Elastic modulus

E

GPa

176

Brinell hardness

BHN

 

245-335

Fatigue limit2)

 

MPa

304

Fatigue limit3)

 

MPa

182

1) The mechanical properties of cast iron with spheroidal graphite in integrally cast Y-shaped test specimens (minimum values)
2) Wöhler rotating bending fatigue test, unnotched test specimen
3) Wöhler rotating bending fatigue test, notched test specimen


Physical Propertiesof ISO 1083/JS/800-2

Density

ρ

kg/dm3

7.20

Thermal conductivity

λ at 300 °C

W/(K*m)

31.1

Thermal expansion coefficient

α up to 400 °C

10-6/K

12.5


Technological Properties of ISO 1083/JS/800-2

Usage temperature

<500

Machinability

Average

Wear resistance

Excellent

Induction or flame-hardening capacity

Excellent

Nitriding capacity

Excellent

Weldability

Only weldable using special electrodes

Equivalent Grades of ISO 1083/JS/800-2 ductile cast iron:

Country

Standard

Material Grade

ISO

ISO 1083

GRADE 800-2

China

GB 1348

QT800-2

USA

ASTM A536

120-90-02

Germany/Austria

DIN 1693

GGG80

European

EN 1563

EN-GJS-800-2

Japan

JIS G5502

FCD800

Italy

UNI 4544

GS800-2

France

NF A32-201

FGS800-2

UK

BS 2789

800/2

Spain

UNF

FGE80-2

Belgium

NBN 830-02

FNG80-2

Australia

AS 1831

GRADE 800-2

Sweden

SS 14 07

0864-03

Norway

NS11 301

SJK-800

 

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