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Titanium

Ti Grade 1 (CP)

Ti Grade 1 is the softest and most formable commercially pure titanium. With the lowest strength of the CP grades at 240 MPa tensile and 170 MPa yield but the highest ductility at 24% elongation, it trades strength for outstanding cold formability. Its corrosion rating of 5 gives near-immunity in seawater and many chemicals, making it ideal for deep-drawn, corrosion-critical parts.

How Ti Grade 1 (CP) machines

Machinability is 2.0/5. Like all titanium it has low thermal conductivity, so heat concentrates at the cutting edge; it is also chemically reactive and prone to galling. Use sharp tools, slow speeds, high feeds, generous flood coolant, and rigid setups, and never let tools dwell, which work-hardens and smears the surface.

Manufacturing & processing

Grade 1 is the most process-friendly CP titanium, supplied for CNC, sheet metal, forging, and extrusion. Its softness and high elongation make it the best CP grade for cold forming, deep drawing, and spinning. It welds readily but requires inert-gas shielding to prevent oxygen and nitrogen pickup that would embrittle the joint.

Typical applications

Best for corrosion-resistant formed parts. Typical uses include chemical-process equipment, heat exchangers, anodes, plate-and-frame components, marine hardware, and deep-drawn or spun parts where maximum formability and excellent corrosion resistance outweigh the need for high strength.

When to choose it

Choose Grade 1 when corrosion resistance and forming ease are paramount and loads are light. If you need more strength while keeping formability, Grade 2 is the standard step up. For high strength-to-weight in structural or implant duty, choose a Ti-6Al-4V grade.

Suitable surface finishes

Common finishes for Ti Grade 1 (CP): Type II anodizing, bead blasting, electropolishing. Use the finish selector →

FAQ

How is Grade 1 different from Grade 2 titanium?
Grade 1 is softer, weaker, and more ductile, with 24% elongation versus Grade 2's 20%. It is the best CP grade for deep forming. Grade 2 offers more strength while remaining formable and is the more common general-purpose choice.
Why is Grade 1 titanium so corrosion resistant?
Titanium forms a stable, self-healing oxide film that resists seawater, chlorides, and many acids, earning a corrosion rating of 5. Grade 1's purity and that passive layer make it near-immune in environments that would attack stainless steel.
Is Grade 1 titanium hard to machine?
Moderately, rated 2.0/5. Its low thermal conductivity traps heat at the tool edge and it galls easily. Sharp tooling, slow speeds, high feeds, heavy coolant, and rigid setups are required, and tools must never dwell in the cut.

Property values are typical/nominal for early guidance and vary by temper, grade, supplier and heat treatment. Confirm critical specs against a certified datasheet or with an mfgiq engineer.