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 |
|
