|
ASTM A48 - 2000 /
ASTM A159 - 1993 / ASTM A319 - 1995
This standard is for
gray
iron castings used for general
engineering use where tensile strength
is a major consideration. Casting
degrees are classified on the basis of
the tensile strength of the cast test
bars. This standard also provides the
chemical composition and physical
properties for motor vehicles.
According the minimum
tensile strength obtained by test bars,
designers could choose the suitable gray
iron degrees. The following information
is from
ASTM.
|
Alternative
Standards: |
|
GB/T 9439-1998 |
|
NF
A32-101(1997)/NF EN 1561:1997 |
|
DIN 1691-1985 |
|
ISO 185:1988 |
|
JIS G5501(1995) |
|
KS D4301-1985 |
|
ГOCT 1412-1985 |
|
BS 1452-1990 |
ASTM A48 Gray Iron Degree and
Tensile Strength
|
Degree/Grade |
Test Bar Strength
Min. Mpa |
Test Bar Diameter
d/mm |
|
ANSI / ASTM |
UNS |
|
No.20A
No.20B
No.20C
No.20S |
F11401 |
138 |
22.4
30.5
50.8
S Bar |
|
No.25A
No.25B
No.25C
No.25S |
F11701 |
172 |
22.4
30.5
50.8
S Bar |
|
No.30A
No.30B
No.30C
No.30S |
F12101 |
207 |
22.4
30.5
50.8
S Bar |
|
No.35A
No.35B
No.35C
No.35S |
F12401 |
241 |
22.4
30.5
50.8
S Bar |
|
No.40A
No.40B
No.40C
No.40S |
F12801 |
276 |
22.4
30.5
50.8
S Bar |
|
No.45A
No.45B
No.45C
No.45S |
F13101 |
310 |
22.4
30.5
50.8
S Bar |
|
No.50A
No.50B
No.50C
No.50S |
F13501 |
345 |
22.4
30.5
50.8
S Bar |
|
No.55A
No.55B
No.55C
No.55S |
F13801 |
379 |
22.4
30.5
50.8
S Bar |
|
No.60A
No.60B
No.60C
No.60S |
F14101 |
414 |
22.4
30.5
50.8
S Bar |
ASTM
A48 Gray Iron Degree and Chemical
Composition for Motor Vehicles
|
Degree/Grade |
C % |
Si % |
Mn % |
P %
≤ |
S %
≤ |
CE |
|
ASTM |
UNS |
|
G1800 |
F10004 |
3.40~3.70 |
2.30~2.80 |
0.50~0.80 |
0.25 |
0.15 |
4.25~4.5 |
|
G2500 |
F10005 |
3.20~3.50 |
2.00~2.40 |
0.60~0.90 |
0.20 |
0.15 |
4.0~4.25 |
|
G2500a |
F10009 |
≤3.40 |
1.60~2.10 |
0.60~0.90 |
0.15 |
0.12 |
— |
|
G3000 |
F10006 |
3.10~3.40 |
1.90~2.30 |
0.60~0.90 |
0.15 |
0.15 |
3.9~4.15 |
|
G3500 |
F10007 |
3.00~3.30 |
1.80~2.20 |
0.60~0.90 |
0.12 |
0.15 |
3.7~3.9 |
|
G3500b |
F10010 |
≤3.40 |
1.30~1.80 |
0.60~0.90 |
0.15 |
0.12 |
— |
|
G3500c |
F10011 |
≤3.50 |
1.30~1.80 |
0.60~0.90 |
0.15 |
0.12 |
— |
|
G4000 |
F10008 |
3.00~3.30 |
1.80~2.10 |
0.70~1.00 |
0.10 |
0.15 |
3.7~3.9 |
|
G4000d |
F10012 |
3.10~3.60 |
1.95~2.40 |
0.60~0.90 |
0.10 |
0.15 |
(+Cr, +Mo) |
ASTM
A48 Gray Iron Physical Properties
for Motor Vehicles
|
Degree/Grade |
Tensile Strength
σb≥/Mpa |
Yield Strength
σbb≥/Mpa |
Elongation
f ≥ / mm |
Hardness
HBS |
Impression
Diameter
mm |
|
G1800 |
137 |
NO |
3.6 |
143~187 |
5.0~4.4 |
|
G2500, G2500a |
172 |
NO |
4.3 |
170~229 |
4.6~4.0 |
|
G3000 |
206 |
NO |
5.1 |
187~241 |
4.4~3.9 |
|
G3500, G3500b,
G3500c |
240 |
NO |
6.1 |
207~255 |
4.2~3.8 |
|
G4000, G4000d |
275 |
NO |
6.9 |
217~269 |
4.1~3.7 |
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