Commercially Pure Titanium Grade 2

General Characteristics of CP Titanium Grade 2

CP titanium Grade 2 offers excellent corrosion resistance, superior formability and strength between grades 1 and 3. It’s a widely used grade that offers a yield strength of 275MPa (40ksi) minimum.

Chemical Composition of CP Titanium Grade 2 – ASTM B 348 (99)

  • Carbon 0.08 max
  • Nitrogen 0.030 max
  • Oxygen 0.25 max
  • Iron 0.30 max
  • Hydrogen 0.015 max
  • Others, individual 0.1 max
  • Others, combined 0.4 max
  • Titanium balance

Chemical Composition of CP Titanium Grade 2 – ASTM F 67-100

  • Carbon 0.8 max
  • Nitrogen 0.030 max
  • Oxygen 0.25 max
  • Iron 0.30 max
  • Hydrogen 0.015 max
  • Titanium balance

Heat Treatment of CP Titanium Grade 2

  • Anneal
    • Hold at 1103° to 1400F (595° to 760°C) for two hours
    • Air cool
    • Stress relive by holding at 1004° to 1103°F (540° to 595°C) for 15 to 30 minutes
    • Air cool
  • Intermediate and final annealing in inert gas or vacuum
  • Perform final heat treatments in vacuum

Applications of CP Titanium Grade 2

  • Aerospace industry
  • Chemical and marine applications
  • Electroplating industry
  • Medical industry

Machinability of CP Titanium Grade 2

  • Comparable to austenitic stainless steel
  • Low speed, heavy feed rate and abundant cutting fluid
  • Employ safety measures because titanium chips are extremely combustible

Workability of CP Titanium Grade 2

  • Hot roll, forge and hot press
  • Initial roughing at 86° to 122°F (30° to 50°C) higher than beta transus
  • Finish from 1499° to 1652°F (815° to 900°C)
  • Bend, stretch, head, stamp and draw at room temperature
  • Fix springback variance by hot sizing

 

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