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Chapter 10
Cast Irons
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ABRASION-RESISTANT
(WHITE) CAST IRON CHEMICAL COMPOSITIONS
|
ASTM A 532 |
UNS |
C |
Mn |
Si |
Ni |
Cr |
Mo |
Cu |
P |
S |
|
Class I Type A |
F45000 |
2.8-3.6 |
2.0 |
0.8 |
3.3-5.0 |
1.4-4.0 |
1.0 |
--- |
0.30 |
0.15 |
|
Class I Type B |
F45001 |
2.4-3.0 |
2.0 |
0.8 |
3.3-5.0 |
1.4-4.0 |
1.0 |
--- |
0.30 |
0.15 |
|
Class I Type C |
F45002 |
2.5-3.7 |
2.0 |
0.8 |
4.0 |
1.0-2.5 |
1.0 |
--- |
0.30 |
0.15 |
|
Class I Type D |
F45003 |
2.5-3.6 |
2.0 |
2.0 |
4.5-7.0 |
7.0-11.0 |
1.5 |
--- |
0.10 |
0.15 |
|
Class II Type A |
F45004 |
2.0-3.3 |
2.0 |
1.5 |
7.0-11.0 |
11.0-14.0 |
3.0 |
1.2 |
0.10 |
0.060 |
|
Class II Type B |
F45005 |
2.0-3.3 |
2.0 |
1.5 |
2.50 |
14.0-18.0 |
3.0 |
1.2 |
0.10 |
0.060 |
|
Class II Type D |
F45007 |
2.0-3.3 |
2.0 |
1.0-2.2 |
2.50 |
18.0-23.0 |
3.0 |
1.2 |
0.10 |
0.060 |
| Class
III Type A |
F45009 |
2.0-3.3 |
2.0 |
1.5 |
2.50 |
23.0-30.0 |
3.0 |
1.2 |
0.10 |
0.060 |
| Single
values are maximum, unless otherwise specified. |
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ABRASION-RESISTANT (WHITE)
CAST IRON HARDNESS REQUIREMENTSa
|
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|
As Cast &/or |
Hardened &/or |
|
|
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|
|
|
Stress |
Stress Relieved |
Chill Cast |
Softened |
|
ASTM A 532 |
UNS |
Designation |
Relieved, min |
Level 1 |
Level 2 |
min |
max |
|
Class I Type A |
F45000 |
Ni-Cr-HiC |
550 |
600 |
650 |
600 |
--- |
|
Class I Type B |
F45001 |
Ni-Cr-LoC |
550 |
600 |
650 |
600 |
--- |
|
Class I Type C |
F45002 |
Ni-Cr-GB |
550 |
600 |
650 |
600 |
400 |
|
Class I Type D |
F45003 |
Ni-HiCr |
500 |
600 |
650 |
550 |
--- |
|
Class II Type A |
F45004 |
12% Cr |
550 |
600 |
650 |
550 |
400 |
|
Class II Type B |
F45005 |
15% Cr-Mo |
450 |
600 |
650 |
--- |
400 |
|
Class II Type D |
F45007 |
20% Cr-Mo |
450 |
600 |
650 |
--- |
400 |
| Class
III Type A |
F45009 |
25% Cr |
450 |
600 |
650 |
--- |
400 |
| a.
All hardness values are Hardness Brinell (HB) numbers. |
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