RM 300M-A

UNS K44220, 300M, 4340M, Vacuum Melted, Low-Alloy Steel, with the inclusion of Vanadium and a higher Silicon composition.

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RM F11-A

UNS K11572, F11, 1¼Cr-½Mo Alloy Steel, Chromium Molybdenum Steel, Structural Steel, Reference Material

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RM 300M-C

UNS K44220, 300M, 4340M, vacuum melted, low alloy steel, with the inclusion of vanadium and a higher silicon composition.

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RM F11-C

UNS K11572, F11, 1¼Cr-½Mo Alloy Steel, Chromium Molybdenum Steel, Structural Steel, Reference Material

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