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  BS1452 Grade 200 Gray Cast Iron  
 

BS1452 Grade 200 has limited strength and wear resistance than other cast iron grades.

It has good noise and vibration damping combined with excellent machineability. It is suited for standard cast iron applications such as moulds, dies and bearings.

Chemical Analysis of BS1452 200 Grey Cast Iron (mass fraction) (%)

Carbon

2.95-3.45%

Phosphorous

0.10-0.20%

Manganese

0.55-0.75%

Sulphur

0.04-0.07%

Silicon

2.10-2.90%

Iron

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.

Typical Properties of BS1452 200 Grey Cast Iron
Typical Tensile range of material (subject to section) N/mm² 115-155
Typical Hardness HB 120-200
Mechanical properties shown are typical and may vary subject to the size and section of this cast iron grade.

Tensile Strength of Grey Iron Casting in BS1452 Grade 200

Grade

Wall Thickness of Casting
/mm

Tensile Strength σb≥/Mpa

Test Bar with Casting

Casting

200

2.5~10
10~20
20~40
40~80
80~150
150~300



170
150
140
130

205
180
155
130
115

Equivalent Grades of BS1452 200 Gray Cast Iron:

Country

Standard

Material Grade


ISO

ISO 185

GRADE 200


China

GB 9439

HT200


USA

ASTM A48

CLASS 30


Germany / Austria

DIN 1691

GG20


European

EN 1561

EN-GJL-200


Japan

JIS G5501

FC200


Italy

UNI 5007

G20


France

NF A32-101

FGL200


UK

BS 1452

180, 200, 220


Spain

UNF

FG20


Belgium

NBN 830-01

FGG20


Australia

AS 1830

T200, T220


Sweden

SS 14 01

O120


Norway

NS11 100

SJG200


 

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