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Maryland Metrics: Titanium GRADE 2 (R50400) Specifications

TITANIUM ALLOY
COMMERCIALLY PURE/UNALLOYED
ASTM GRADE (UNS NO.)
GRADE 2 (R50400)
Chemical Composition (wt. %)
(Max. values unless range is shown)
0.08C; 0.03N; 0.25O; 0.30Fe; 0.015H
TENSILE PROPERTIES
Guar.R.T.
Min.
Typical Elevated Temperature Properties
93C(200F)
204C(400F)
315C(600F)
Ultimate Strength
MPa (ksi)
345 (50)
393 (57)
283 (41)
221 (32)
Yield Strength,
0.2% offset
MPa (ksi)
276 (40)
276 (40)
166 (24)
103 (15)
Elongation in 51 mm
(2") gage length
(%)
20
28
41
38
Reduction in Area -
Bar, Billet & Forging only
(%)
30*
40
55
75
OTHER MECHANICAL PROPERTIES
 

Stress to Rupture
in Time Shown

Stress
MPa (ksi)
 
276 (40)
240 (35)
117 (17)
Time-Hrs. at Temp. (C)  
10,000 (100)
10,000 (150)
1,000 (250)
Stress & Time to
Produce Elongation
Shown (creep)
Stress
MPa (ksi)
 
209 (30)
179 (26)
103 (15)
Time-Hrs. at Temp. (C)  
1,000 (25)
1,000 (150)
1,000 (250)
Creep
(%)
 
1.0
1.0
1.0
Charpy V-Notch
Impact @ R.T.
Joules
(ft-lbs)
40 - 82 (30 - 60)
Bend Radius Under 1.78 mm (0.070") thick
2.0 x Thickness
1.78 mm (0.070") and over
2.5 x Thickness
Welded Bend Radius
2.5 - 3.0 x Thickness
Nominal Hardness
82 HRB
PHYSICAL PROPERTIES
Nominal Beta
Transus
C (F)
913 (1675)
Coefficient of
Thermal Expansion

10-6/C
(10-6/F)
0-100C (32 -212F)
8.6 (4.8)
0-315C (32-600F)
9.2 (5.1)
0-538C (32-1000F)
9.7 (5.4)
0-648C (32-1200F)
10.1 (5.6)
0-816C (32-1500F)
10.1 (5.6)
Density
g/cm3 (lbs/in3)
4.51 (0.163)
Melting
Point,
Approx.
C (F)
1660 (3020)
Electrical
Resistivity
@ R.T.
10-6 ohmcm
(10-6 ohmin)
56 (22)
Modulus of
Elasticity ­
Tension
GPa (103 ksi)
103 (15 )
Modulus of
Elasticity ­
Torsion
GPa (103 ksi)
41 (6.0)
Thermal
Conductivity
W/mC (BTU/hrftF)
20.8 (12.0)
Specific
Heat
J/KgC (BTU/lbF)
520 (0.124)
Weldability
Excellent
Industry Specifications
ASTM -
B265, B337, B338, B348, B363, B381, B861, B862, F67 and AMS 4902


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