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BS1452 Grade 220 Gray Cast Iron

 

BS1452 Grade 220 is used for many applications requiring good wearing characteristics and reasonable strength.

This grade is popular in the glass and plastics industries for applications including moulds, dies, cams, bushes, bearings and gears.

Chemical Analysis of BS1452 220 Grey Cast Iron(mass fraction)(%)

Carbon

2.90-3.65%

Phosphorous

0.30% max

Manganese

0.40-0.70%

Sulphur

0.10% max

Silicon

1.80-2.90%

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 220 Grey Cast Iron
Typical Tensile range of material (subject to section) N/mm² 125-185
Typical Hardness HB 120-220
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 220

Grade

Wall Thickness of Casting
/mm

Tensile Strength σb≥/Mpa

Test Bar with Casting

Casting

220

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



175
165
150
140

220
195
170
145
130

Equivalent Grades of BS1452 220 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



This article is from our Dandong Foundry's BS1452 Grade 220 Gray Cast Iron

 

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