This specification covers steel castings for valves, flanges, fittings, and other pressure-containing parts intended primarily for low-temperature service. Several grades of ferritic steels and one grade of martensitic steel are covered. Selection of analysis will depend on design and service conditions
| Type | Grade | UNS Number |
|---|---|---|
| Carbon Steel | LCA | J02504 |
| LCBA | J03003 | |
| Carbon Manganese Steel | LCC | J02505 |
| Carbon Molybdenum Steel | LC1 | J12522 |
| 2 1/2 % Nickel Steel | LC2 | J22500 |
| Nickel Chromium Molybdenum Steel | LC2-1 | J42215 |
| 3 1/2 % Nickel Steel | LC3 | J31550 |
| 4 1/2 % Nickel Steel | LC4 | J41500 |
| 9 % Nickel Steel | LC9 | J31300 |
| 12 1/2 % Chromium Nickel Molybdenum Steel | CA6NM | J91540 |