SAE AMS6490J

Заменен

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

Описание Изменения Ссылки Версии

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

Заменен на

SAE AMS6490K