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Titanium Information:

Type	Composition	Percentage	Description
CP-1	Iron: Oxygen: Carbon: Nitrogen: Hydrogen: Titanium:	0.20% 0.18% 0.08% 0.03% 0.01% Balance	This titanium alloy is also known as Grade 1. Commercially pure titanium, CP-1 has lowest strength, and is the softest, least alloyed Ti grade with highest ductility, cold formability and impact toughness. It is not a good material for liner locks but works well for overlays or bolsters. Tensile Strength: 35,000, Yield Strength (0.2% offset): 25,000
CP-2	Iron: Oxygen: Carbon: Nitrogen: Hydrogen: Titanium:	0.30% 0.25% 0.08% 0.03% 0.01% Balance	This titanium alloy is also known as Grade 2. Commercially pure titanium. The are four CP alloys, CP-1 through CP-4. CP-1 has lowest strength, and is the softest, unalloyed Ti grade with highest ductility, cold formability and impact toughness. It is not a good material for liner locks but works well for overlays or bolsters. Tensile Strength: 50,000, Yield Strength (0.2% offset): 40,000
CP-3	Iron: Oxygen: Carbon: Nitrogen: Hydrogen: Titanium:	0.30% 0.35% 0.08% 0.05% 0.01% Balance	This titanium alloy is also known as Grade 3. Commercially pure titanium. The are four CP alloys, CP-1 through CP-4. CP-1 has lowest strength, and is the softest, unalloyed Ti grade with highest ductility, cold formability and impact toughness. It is not a good material for liner locks but works well for overlays or bolsters. Tensile Strength: 65,000, Yield Strength (0.2% offset): 55,000
CP-4	Iron: Oxygen: Carbon: Nitrogen: Hydrogen: Titanium:	0.50% 0.40% 0.08% 0.05% 0.01% Balance	This titanium alloy is also known as Grade 4. Commercially pure titanium. The are four CP alloys, CP-1 through CP-4. CP-1 has lowest strength, and is the softest, unalloyed Ti grade with highest ductility, cold formability and impact toughness. It is not a good material for liner locks but works well for overlays or bolsters. Tensile Strength: 80,000, Yield Strength (0.2% offset): 70,000
3-2.5	Aluminum: Vanadium: Iron: Oxygen: Carbon: Nitrogen: Hydrogen: Titanium:	3.00% 2.50% 0.25% 0.15% 0.08% 0.03% 0.01% Balance	This titanium alloy is also known as Grade 9. It is used in high temperature conditions where 6-4 would fail. The alloy anodizes similar to 6-4. It cracks and/or breAKS™ when bent at sharp angles. In my opinion it grinds easier and polishes better. Every knifemaker who purchased 6242 (except one) likes it. It is part of the 6-4 family. Tensile Strength: 130,000, Yield Strength (0.2% offset): 120,000
6-2-4-2	Aluminum: Tin: Zirconium: Molybdenum: Iron: Oxygen: Silicon: Carbon: Nitrogen: Hydrogen: Titanium:	6.00% 2.00% 4.00% 2.00% 0.25% 0.15% 0.10% 0.08% 0.05% 0.01% Balance	This titanium alloy is also known as 6242. It is used in high temperature conditions where 6-4 would fail. The alloy anodizes similar to 6-4. It cracks and/or breAKS™ when bent at sharp angles. In my opinion it grinds easier and polishes better. Every knifemaker who purchased 6242 (except one) likes it. It is part of the 6-4 family. Tensile Strength: 130,000, Yield Strength (0.2% offset): 120,000
6-4	Aluminum: Vanadium: Iron: Oxygen: Carbon: Nitrogen: Hydrogen: Titanium:	6.00% 4.00% 0.40% 0.20% 0.08% 0.05% 0.01% Balance	This titanium alloy is also known as 6AL4V, 64 or Grade 5. This alloy is the most commercially available titanium alloy. It offers an excellent combination of high strength, toughness, and ductility along with good weldability and fabricability. It is the "workhorse" of the aerospace industry. Tensile Strength: 130,000, Yield Strength (0.2% offset): 120,000
6-6-2	Aluminum: Vanadium: Tin: Copper: Iron: Titanium:	6.00% 6.00% 2.00% 0.50% 0.50% Balance	This titanium alloy is also known as 662. It has improved strength compared with 6-4, but with lower toughness and ductility, and limited weldability. Tensile Strength: 150,000, Yield Strength (0.2% offset): 140,000
10-2-3	Vanadium: Iron: Aluminum: Oxygen: Nitrogen: Carbon: Hydrogen: Titanium:	10.00% 2.00% 3.00% 0.13% 0.05% 0.05% 0.01% Balance	This titanium alloy was developed primarily for high-strength applications to provide weights savings over steels in airframe forging applications. The alloy also possesses the best hot-die forgeability of any commercial titanium alloy . Tensile Strength: 173,000, Yield Strength (0.2% offset): 160,000

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