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Chapter 10
Cast Irons
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DUCTILE
CAST IRON
DUCTILE CAST IRON
MECHANICAL PROPERTIES
|
ASTM |
UNS |
Tensile Strength ksi |
Yield Strength ksi |
% Elongation |
Hardness HB |
|
A 395 |
F32800 |
60 |
40 |
18 |
rder-width: medium" align="center">
A 395 |
3.0 |
2.50 |
0.08a |
--- |
--- |
|
A 476 |
3.0 |
3.00 |
0.08 |
0.05 |
3.8-4.5 CE |
|
A 874 |
3.0-3.7 |
1.2-2.3 |
0.03 |
--- |
0.07 Mg, 0.25 Mn, |
| |
|
|
|
|
0.10 Cu, 1.0 Ni, 0.07 Cr |
|
a. For each reduction of 0.01 % phosphorus below
its maximum, an increase of 0.08 % silicon above its specified maximum will
be permitted |
|
up to 2.75 % maximum silicon. |
|
Single values are minimum, unless otherwise
designated. |
DUCTILE CAST IRON MECHANICAL
PROPERTIES
|
ASTM A 897 |
UNS |
Tensile Strength |
Yield Strength |
% Elongation |
Impacta |
Hardness HBb |
|
Gr 125/80/10 |
--- |
125 |
80 |
10 |
75 |
269-321 |
|
Gr 150/100/7 |
--- |
150 |
100 |
7 |
60 |
302-363 |
|
Gr 175/125/4 |
--- |
175 |
125 |
4 |
45 |
341-444 |
|
Gr 200/155/1 |
--- |
200 |
155 |
1 |
25 |
155 |
1 |
25 |
388-477 |
|
Gr 230-185/- |
--- |
230 |
185 |
--- |
--- |
444-555 |
|
ASTM A 536 |
|
|
|
|
|
|
|
Gr 60-40-18 |
F32800 |
60 |
50 |
18 |
--- |
--- |
|
--Gr 65-45-12 |
F33100 |
65 |
45 |
12 |
--- |
--- |
|
Gr 80-55-06 |
F33800 |
80 |
55 |
6 |
--- |
--- |
|
Gr 100-70-03 |
F34800 |
100 |
70 |
3 |
--- |
--- |
|
Gr 120-90-02 |
F36200 |
120 |
90 |
2 |
--- |
--- |
|
Gr 60-42-10 |
--- |
60 |
42 |
10 |
--- |
--- |
|
Gr 70-50-05 |
--- |
70 |
50 |
5 |
--- |
--- |
|
Gr 80-60-03 |
--- |
80 |
60 |
3 |
--- |
--- |
| a.
Unnotched charpy bars tested at 72 F and measure in ft-lb. Values are
minimum for the average of three test values of the four tested samples. |
| b.
Hardness is not mandatory and shown only for information. HB - Hardness
Brinell. |
| Single
values are minimums, unless otherwise designated. |
| |
|