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  DIN 1691 GG35 Gray Cast Iron  
 

DIN 1691 GG35 Gray Cast Iron chemical composition, material properties, and equivalent grade.

Characteristics of DIN 1691 GG35 Gray Cast Iron:
DIN 1691 GG35 is an excellent wear resistance cast iron grade while still possessing reasonable machinability characteristics. DIN 1691 GG35 Gray Cast Iron can be hardened by conventional methods to RC50 on the bar surface.

Chemical Composition of DIN 1691 GG35 Gray Cast Iron:

Carbon

C

2.90-3.65

[%]


Silicon

Si

1.80-2.90

[%]


Manganese

Mn

0.5-0.7

[%]


Sulphur

S

0.10 max.

[%]


Phosphorus

P

0.30 max.

[%]


Iron

Fe

Balance

As for normal grey iron, the chemical composition is not important comparatively. The iron foundries could adjust the compositions according to their experience as long as they could meet the physical and mechanical requirements.

Important Note:
As the material property values below are generalized figures only for quick reference and may only be applicable to certain test conditions. Thus, it is normal if you find the figures different from other reference sources that are based on a different set of test conditions.

Material Properties for Gray Cast Iron DIN 1691 GG35:

Material Property

Values

Glass Transition Temperature

-

Melting Temperature

1150 - 1250 ℃

Service Temperature

-

Density

7.4 g/cm³

Young's Modulus, E

125 - 145 GPa

Compressive Strength, σc

-

Yield Strength, σy

215 - 790 MPa

Tensile Strength, σts

350 - 450 MPa

Poisson's Ratio

0.21 - 0.26

Shear Modulus, G

-

Vickers Hardness

-

Fracture Toughness, KIC (plane-strain)

22 - 54 MPa/√m

Thermal Conductivity, λ

50 W/m.K

Thermal Expansion, α

11 E-6/C

Production Energy

16.4 - 18.2 MJ/kg

CO2 Emission

1 - 1.1 kg/kg

Fire Resistance

Excellent

Fresh Water Resistance

Good

Salt Water Resistance

Average

Sunlight/UV Resistance

Excellent

Wear Resistance

Excellent

Equivalent Grade for DIN1691 GG35 Grey Cast Iron

Country

Standard

Material Grade


ISO

ISO 185

GRADE 350


China

GB 9439

HT350


USA

ASTM A48

CLASS 50


European

EN 1561

EN-GJL-350


Japan

JIS G5501

FC350


Italy

UNI 5007

G35


France

NF A32-101

FGL350


UK

BS 1452

350


Spain

UNF

FG35


Belgium

NBN 830-01

FGG35


Australia

AS 1830

T350


Sweden

SS 14 01

O135


Norway

NS11 100

SJG350

 

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