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AWS A5.16 ERTi-4 – The Welding Warehouse, Inc.

AWS A5.16 ERTi-4

CP-4 Titanium

CP-4 Titanium is the highest strength unalloyed (or Commercially Pure–CP) grade. Grade 4 is rarely used in corrosion service, but has been used (under AMS Specifications) in aircraft components where its higher strength can reduce the weight of components like bulkheads and firewalls.

Nominal Chemistry Composition (%)
Ti	C	O	N	H	Fe
BAL	0.030 max	0.18-0.32	0.025 max	0.008 max	0.250 max

Minimum Mechanical Properties
Tensile Strength (MPa)	550
Yield Strength (MPa)	483