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CP-3 GR 2
The most commonly used grade for chemical process vessels and sea water applications.
Excellent corrosion resistance to environments from highly oxidizing to mildly reducing, including chlorides. Used in continuous service up to 800°F, and intermittent service to 1000°F.
Anneal 1200-1450°F for 15 minutes to 2 hours, air cool. Stress relieving is done at 900-1100°F for 30 minutes. Titanium Grades 1, 2, 3, and 4 cannot be strengthened by heat treatment.
The crystal structure of Grade 2 is 100% alpha (hexagonal close packed) at room temperature. Blocking, 1600-1700°F finishing 1500-1600°F.
Chemistry
| C | N | O | H | Fe | Others, total | Ti | |
|---|---|---|---|---|---|---|---|
| MIN | -- | -- | -- | -- | -- | -- | -- |
| MAX | 0.08 | 0.05 | 0.2 | 0.015 | 0.1 | 0.30 | balance |
Specifications
AMS 4902, AMS T-9046
ASME SB 265, ASME SB 338, ASME SB 348, ASME SB 363
ASTM B 265, ASTM B 338, ASTM B 348, ASTM B 363
MIL T-81556
NACE MR0175
UNS R50400
W. Nr./EN 3.7035
Inventory
CP-3 GR 2 Plate, CP-3 GR 2 Sheet, CP-3 GR 2 Welding Products
Common Trade Names
CP titanium Grade 2, Titanium Grade 2
Features
- Excellent corrosion resistance to environments from highly oxidizing to mildly reducing, including chlorides
- Titanium Grade 2 is slightly stronger than Titanium Grade 1
Applications
- Chemical process tanks and equipment
- Aerospace ducting
- Mufflers and exhaust components
- Medical and dental implants
- Heat exchangers
Physical Properties
Density: 0.163 lb/inch3
Nominal Beta Transus: 1680°F
Approx Melting Point: 3020°F
Grain Size: ASTM 6 or finer
| Temperature, °F | 100 | 200 | 400 | 600 | 1000 |
| Coefficient* of Thermal Expansion, in/in°F x 10-6 | -- | 4.8 | 5.01 | 5.11 | 5.4 |
| Thermal Conditioning Btu • ft/ft2 • hr°F |
12.5 | 12.5 | 1.8 | 1.2 | -- |
| Modulus of Elasticity, psi x 106 | 15.5 | -- | -- | -- | -- |
Mechanical Properties
Specified Room Temperature, AMS 4902
| Tensile Min, ksi | 50 |
| 0.2% Yield Strength, ksi | 40-60 |
| Elongation, min in 2 inch, % | 20 |
Typical Elevated Temperature Properties
| Temperature, °F | 200 | 400 | 600 |
| Tensile Strength, ksi | 57 | 41 | 32 |
| 0.2% Yield Strength, ksi | 40 | 24 | 41 |
| Elongation, % | 32 | 15 | 39 |