MATERIALS
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HEAT Resistant Alloys as per ASTM A297 Grade HK, HN, HT, HU, HX etc. Corrosion Resistant Alloys like CF 8, CF 8M, Alloy20, HASTALLOYS etc.
- TYPICAL CHEMICAL COMPOSITION OF DIFFERENT HEAT RESISTANT ALLOY
- TYPICAL CHEMICAL COMPOSITION OF DIFFERENT HEAT RESISTANT ALLOY
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CASTING SPECIFICATION
CHEMICAL COMPOSITION
INDIAN
IS 4522AMERICAN
ASTM A-297GERMAN
WERKSTOFFCarbon
% (Max)Nickel
%Chromium
%5
HF
1.4825
0.40
9.0 – 12.0
19.0 – 23.0
7
HH
1.4837
0.50
11.0 – 14.0
24.0 – 28.0
9
HK
1.4848
0.60
18.0 – 22.0
24.0 – 28.0
11
HN
-
0.50
23.0 – 27.0
19.0 – 23.0
12
HT
-
0.75
33.0 – 37.0
13.0 – 17.0
13
HU
1.4865
0.75
37.0 – 41.0
17.0 – 21.0
14
HX
-
0.75
64.0 – 68.0
15.0 – 19.0
- TYPICAL CHEMICAL COMPOSITION OF DIFFERENT CHEMICAL RESISTANT ALLOYS
-
CASTING SPECIFICATION
CHEMICAL COMPOSITION
INDIAN
IS 3444AMERICAN
ASTM A-743Carbon
% (Max)Nickel
%Chromium
%Molybdenum
%Other Elements
Grade – 1
CF – 8
0.08
8.0 – 11.0
18.0 – 21.0
Grade – 4
CF – 8M
0.08
9.0 – 12.0
18.0 – 21.0
2.0 – 3.0
Grade – 15
CF – 3
0.03
8.0 – 12.0
18.0 – 21.0
Grade – 16
CF – 3M
0.03
9.0 – 13.0
18.0 – 21.0
2.0 – 3.0
Grade – 18
CN – 7M
0.07
27.0 – 31.0
18.0 – 22.0
2.0 – 3.0
Cu – 3.0 to 4.0%