ASTM A-297
Mechanical resistance and low oxidation 1090 ° C
HH
12 ni
25 cr
ASTM A-297
Mechanical resistance at high temperatures 1150 ° C
H
20 NI
25 CR
ASTM A-297
Mechanical resistance at high temperatures 1200 ° C
HT
15 CR
35 NI
ASTM A-297
Good oxidation resistance 1950 ° C
HC
28 CR
9 NI
ASTM A-447
Steels, nickel, chrome for high temperatures with good mechanical resistance and low oxidation 1090 ° C
Gr 60 – 30
Gr 65 – 35
Gr 70 – 36
ASTM A-476
High alloy steels resistant to high temperatures (more than 1090 ° C) and corrosion.
Gr 60 – 30
Gr 65 – 35
Gr 70 – 36