3003 Aluminum in CNC Machining: How Mn Content Changes Formability, Tool Wear & Temper Selection
If you’re designing a part that will be formed, bent, or deep-drawn before or after machining — and it doesn’t need 6061-level strength — 3003-H14 is usually the right starting point. Its ~1.2% manganese addition gives it roughly 10–20% more strength than 1100 commercially pure aluminum without s…