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Standard specifications for ASTM A297 - steel castings, heat resistant, for general applications. Standard analysis produced by Alloy Engineering & Casting Company. |
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| ACI Grades | Proprietary Grades | |||||
| HC | HE | HF | NC9MO | NC11 | NC11C | |
| HH2 | HK | HL | NC-13 | NC14 | ||
| HN | HP | HT | ||||
| HU | HW | HX | ||||