Songhan Plastic Technology Co.,Ltd.
 POLYMER SEARCH

TIMET TIMETAL® 551 (Ti-4Al-4Mo-4Sn-0.5Si) Titanium Alloy;

Category Metal , Nonferrous Metal , Titanium Alloy , Alpha/Beta Titanium Alloy
Manufacturer TIMET
Trade Name TIMETAL®
Port Shanghai port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF TIMET TIMETAL® 551 (Ti-4Al-4Mo-4Sn-0.5Si) Titanium Alloy;.pdf
Price EMAIL US    sales@lookpolymers.com
  Online Service   lookpolymers   27660005
Material Notes:
High-Strength Forging AlloyIndustry Specifications: UK Aerospace Specifications BS TA.38, 39, 40, 41, 42.Features: TIMETAL 551 has high strength and is creep resistant up to 400°C. It has a similar composition to TIMETAL 550, apart from an increase in tin content, which gives increased strength at room and elevated temperatures. This is one of the strongest of the commercially available titanium alloys, with room temperature strengths ranging form 1250 to 1400 MPa. Typical applications include airframe structural forgings and machined parts such as undercarriage components, mounting brackets and pump casing where strength is required at low weight; and gas-turbine engine components. The alloy is also suitable for general engineering applications such as steam-turbine blades, axial and radial compressor parts, connecting rods, and other high-speed rotating and reciprocating components. It is nonmagnetic.Typical heat treatment for this alloy: Solution heat treatment: 900°C for 1 hr, air cool. Ageing heat treatment: 500°C for 24 hrs, air cool.Data provided by TIMET.
Physical Properties Metric English Comments
Density 4.60 g/cc
0.166 lb/in³
Typical
Mechanical Properties Metric English Comments
Tensile Strength, Ultimate 1450 MPa
210000 psi
Typical
Tensile Strength, Yield 1210 MPa

@Strain 0.200 %
175000 psi

@Strain 0.200 %
Typical
Elongation at Break 10 %
10 %
Typical
Reduction of Area 20 %
20 %
Modulus of Elasticity 110 - 120 GPa
16000 - 17400 ksi
Typical
Poissons Ratio 0.34
0.34
Calculated by MatWeb
Fatigue Strength 400 MPa

@# of Cycles 1.00e+8
58000 psi

@# of Cycles 1.00e+8
Notched, Kt = 3.2; 1" (25 mm) diameter rod
790 MPa

@Diameter 25.0 mm,
# of Cycles 1.00e+8
115000 psi

@Diameter 0.984 in,
# of Cycles 1.00e+8
smooth, rod
Fracture Toughness 30.7 MPa-m½
27.9 ksi-in½
K(IC)
Shear Modulus 43.0 GPa
6240 ksi
Charpy Impact 25.0 J
18.4 ft-lb
at RT
Thermal Properties Metric English Comments
CTE, linear 8.50 µm/m-°C

@Temperature 20.0 - 100 °C
4.72 µin/in-°F

@Temperature 68.0 - 212 °F
Specific Heat Capacity 0.368 J/g-°C
0.0880 BTU/lb-°F
Thermal Conductivity 6.92 W/m-K
48.0 BTU-in/hr-ft²-°F
Maximum Service Temperature, Air 400 °C
752 °F
Useful creep to 400°C
Beta Transus 1050 °C
1920 °F
Component Elements Properties Metric English Comments
Aluminum, Al 3.0 - 5.0 %
3.0 - 5.0 %
Carbon, C 0.050 - 0.20 %
0.050 - 0.20 %
Hydrogen, H <= 0.015 %
<= 0.015 %
Iron, Fe <= 0.20 %
<= 0.20 %
Molybdenum, Mo 3.0 - 5.0 %
3.0 - 5.0 %
Nitrogen, N <= 0.050 %
<= 0.050 %
Oxygen, O <= 0.25 %
<= 0.25 %
Silicon, Si 0.30 - 0.70 %
0.30 - 0.70 %
Tin, Sn 3.0 - 5.0 %
3.0 - 5.0 %
Titanium, Ti 83.2 - 90.7 %
83.2 - 90.7 %
Calculated as remainder
Electrical Properties Metric English Comments
Electrical Resistivity 0.000170 ohm-cm
0.000170 ohm-cm
Copyright © lookpolymers.com All Rights Reserved