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  ASTM A48 CLASS 45 Gray Cast Iron  
 

ASTM A48 covers gray iron castings intended for general use. A48 is a high material grade in this standard.

ASTM A48 castings are supplied based solely on tensile strength where no chemical requirements or ductility is specified. The tensile strength requirements are specified by class number and class type.

Mechanical & Chemical Composition of ASTM A48 CLASS 45 Gray Cast Iron
Carbon 3.1%
Silicon 1.45%
Mangenese 0.9%
Phosphorous Max 0.08%
Sulphur 0.12%
BHN 196 - 255
Tensile Strength (PSI) 45,000
Minimum Wall Thickness 5/8"
* On a 1.2" ASTM A-48B Test Bar

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.

Requirements for Tensile Strength of ASTM A48 CLASS 45 Gray Cast Irons in Separately Cast Test Bar (Inch-Pound)

Casting Grade

Tensile Strength, min, ksi

Nominal Test Bar Diameter, inch

ASTM A48 Class No. 45 A

45

0.88

ASTM A48 Class No. 45 B

1.2

ASTM A48 Class No. 45 C

2.0

ASTM A48 Class No. 45 S

Bar S

Gray Iron Castings can be produced in Casting Quality Industrial:
Sand Casting
Shell Casting
Lost Form Casting
Centrifugal Casting

Similar Gray Iron Casting Grades of ASTM A48 CLASS 45 in whole world:

USA

China

Japanese

Russia

Germany

Italy

France

England

Poland

India

Romania

Spanish

CLASS 45

HT300

FC300

CH30

GG30

G30

FGL300

300

Z130

FG300

FC300

FG30


Belgium

Australia

Sweden

Hungary

Bulgaria

ISO

COPANT

Taiwan(CN)

Holand

Luxemburg

Austria

European

FGG30

T300

O130

OV30

Vch30

300

FG300

FC300

GG30

FGG30

GG30

EN-GIL-300

 

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