SAE AMS6490K

Действует

Steel Bars, Forgings, Mechanical Tubing and Forging Stock 4.0Cr - 4.2Mo - 1.0V (0.77 - 0.85C) (M-50) Premium Aircraft-Quality for Bearing Applications Consumable Electrode Vacuum Melted

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This specification covers a premium aircraft-quality, low-alloy steel in the form of bars, forgings, mechanical tubing, and forging stock.