Titanium Grade 4, Sheet, Coil, Bar, Plate, AMS 4901 (CP Grade 4) - UNS R50700

Sheet

Grade 4 is the strongest of the CP grades, with a minimum yield strength of 480 MPa (70ksi) and has the highest allowable oxygen and iron content of the grades. Grade 4 is commercially pure, also referred to as CP, which means it is unalloyed. Grade 4 titanium features excellent resistance to corrosion and corrosion fatigue as well as high strength.

Inventory Size Ranges for CP Grade 4

Type Thickness AMS Standards ASTM UNS Get a Quote
Coil 0.012" - 0.080" AMS 4901, AMS 4921 ASTM B 265, ASTM B 348, ASTM F 67 UNS R50700 Get a Quote
Sheet 0.012" - 0.080" AMS 4901, AMS 4921 ASTM B 265, ASTM B 348, ASTM F 67 UNS R50700 Get a Quote
Plate 0.250" - 0.625" AMS 4901, AMS 4921 ASTM B 265, ASTM B 348, ASTM F 67 UNS R50700 Get a Quote

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Characteristics of CP Grade 4

CP Grade 4 features excellent resistance to corrosion and corrosion fatigue. This material also demonstrates high strength. 

Other industry standards we comply with:

  • ASM/MIL-81200
  • DFARS Compliant

Common Trade Names

  • Grade 4 Titanium
  • Gr. 4 Titanium
  • CP 4 Titanium

Industry Applications for CP Grade 4

  • Jet engine components
  • Aerospace fasteners
  • Marine and chemical processing and desalinization plants
  • Corrosive waste disposal wells
  • Pulp and paper production

Chemical Composition

Chemical Composition Percentage of CP Grade 4 Titanium
Element Min Max
N Nitrogen - 0.05
C Carbon - 0.08
O Oxygen - 0.4
Fe Iron - 0.5
H Hydrogen - 0.015
Ti Titanium - Balance
- Other - 0.4

Physical Properties

Physical Properties of CP Grade 4 Titanium
Physical PropertyT (°F)T (°C)ValueValue (SI)

Density

-

-

0.1630 lb/in³

4.512 g/cm3

Beta Transus

1715-1765

935-963

-

-

Alpha Transus

1635-1685

891-918

-

-

Melting (liquidus) Point

3000-3040

1649-1671

-

-

Specific Heat

73

23(°F)

0.1250 Btu/°F

-

Electrical Resistivity

73

23(°F)

3.93 μΩ∙in

.100 μΩ∙in

Modulus of Elasticity

-

-

15.0 x 10³ ksi

10.3 x 104 MPa

Mechanical Properties

Mechanical Properties of CP Grade 4 Titanium

Room Temperature Mechanical Properties

UTS, ksi (MPa)

YS, ksi (MPa)

%EI

%RA

Specified Properties

80 (550)

70 (480)

15

30

Typical Properties

95-100 (655-690)

70-92 (480-635)

20-25

38-51

Datasheet

cp-grade-4-datasheet.pdf (3.22 MB)

Additional Info