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KS D4301 - 1985 Standard for
Gray Cast Iron
This is a Korea standard for stipulating the
physical properties of gray cast iron,
or called as grey iron. This standard is
similar with the other standards for
gray iron such as
ASTM A48
in USA, DIN
1691 in Germany and
ISO 185.
The following is the main content of
KS D4301-1985 standard for your reference.
Grade and tensile strength of gray cast iron
|
Grade |
Grade of the old type |
Thickness
/ mm |
Specimen diameter
/mm |
Tensile strength
σb≥/Mpa |
|
GC 100 |
GC 10 |
4~50 |
30 |
100 |
|
GC 150 |
GC 15 |
4~8
8~15
15~30
30~50 |
13
20
30
45 |
186
167
150
127 |
|
GC200 |
GC 20 |
4~8
8~15
15~30
30~50 |
13
20
30
45 |
235
216
200
167 |
|
GC 250 |
GC 25 |
4~8
8~15
15~30
30~50 |
13
20
30
45 |
275
255
250
216 |
|
GC 300 |
GC 30 |
8~15
15~30
30~50 |
20
30
45 |
300
300
265 |
|
GC350 |
GC 35 |
15~30
30~50 |
30
45 |
350
315 |
Bending resistant properties and hardness of gray cast iron
|
Grade |
Grade of the old type |
Thickness
/ mm |
Specimen diameter
/mm |
Bending resistant properties |
Hardness
≤HBS |
|
All up weight
/ N |
Deflection
f / mm |
|
GC 100 |
GC 10 |
4~50 |
30 |
6860 |
3.5 |
201 |
|
GC 150 |
GC 15 |
4~8
8~15
15~30
30~50 |
15
20
30
45 |
1770
3920
7850
16670 |
2.0
2.5
4.0
6.0 |
241
223
212
201 |
|
GC200 |
GC 20 |
4~8
8~15
15~30
30~50 |
15
20
30
45 |
1960
4410
8830
19610 |
2.0
3.0
4.5
6.0 |
255
235
223
217 |
|
GC 250 |
GC 25 |
4~8
8~15
15~30
30~50 |
15
20
30
45 |
2160
4900
9860
22560 |
2.0
3.0
5.0
7.0 |
269
248
241
229 |
|
GC 300 |
GC 30 |
8~15
15~30
30~50 |
20
30
45 |
5390
10790
25500 |
3.5
5.5
7.5 |
269
262
248 |
|
GC350 |
GC 35 |
15~30
30~50 |
30
45 |
11770
28440 |
5.5
7.5 |
277
269 |
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