Cold-Finished Maraging Alloy Steel Round Bar
C250 maraging steel bar (18% Ni, Co, Mo), cold-finished 30 mm diameter for rocket motor cases. Under HTS 7228.50.5015 as cold-finished alloy steel <76 mm cross-section. Ultra-high strength from precipitation aging of low-carbon martensite.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If semi-finished (not cold-formed)
Less processed material forms classified earlier in chapter.
If hot-rolled condition
Processing method (hot vs cold) determines primary classification.
If predominantly cobalt/nickel matrix
High Ni/Co may shift to Chapter 81 special metals.
Not sure which classification is right?
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Import Tips & Compliance
• Provide aging heat treatment specification in material certs
• Document solution treatment prior to cold-finishing process
• Confirm compliance with ITAR if defense-related end use
Related Products under HTS 7228.50.50.15
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