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 |
|
