TB2

• 

• Material:	TB2
  Other Brands:	TB2
  Source Stock:	Customized
  Supplier:	Shanghai Hite Special Alloy Co., Ltd.
  Contacts:	Mr.KayDuan
  Email:	sales02@hitealloy.com

• TB2 Details

  
  
  

  
  

  Basic characteristics:

  TB2 is a high-strength, high toughness, and metastable beta titanium alloy independently developed and produced in China. The alpha stable element is 3% Al, with a Mo equivalent of 18.15. This alloy has excellent cold forming performance and good welding performance in the solution treated state, and has high strength and good plasticity matching in the solution aged state. The main drawbacks of this alloy are high density, low elastic modulus, and low resistance to high-temperature creep.

  
  

  TB2 (GB/T 3620.1-2007) chemical composition:

  	chemical compostion
  TB2	Fe	C	Cr	Mo	N	V
  	-	-	7.5	4.7	-	4.7
  	0.3	0.05	8.5	5.7	0.04	5.7
  Al	H	Y	O	Single	Others	Ti
  2.5	-	-	-	-	-	Remainder
  3.5	0.015	0.005	0.15	0.1	0.4

  The chemical composition includes chemical components with unspecified values in the table. Analysis should only be conducted if it is assumed to exist or in routine analysis, and there are indications that its composition will exceed the specified value.

  
  

  Physical property:

  Thermal conductivity
  temperature θ/°C		100	200	300	400	500	600
  Thermal conductivity  λ/[W/(m.°C)]	Solid solution treatment	8.9	10.9	12.6	14.7	16.3	16.8
  	Solid solution aging	8.2	10.8	11.9	13.1	14.7	16.3

  Specific heat capacity
  temperature θ/°C		100	200	300	400	500	600
  Specific heat capacity  c/[J/(kg.°C)]	Solid solution treatment	536	553	565	628	607	858
  	Solid solution aging	523	540	557	574	590	607

  Linear expansion coefficient
  temperature θ/°C		20~100	20~200	20~300	20~400	20~500	20~600
  Linear expansion coefficient  α/10-6°C-1	Solid solution treatment	8.5	9.3	9.5	9.7	9.8	10
  	Solid solution aging	8.7	9.1	9.4	9.7	9.8	10.8

  resistivity
  temperature θ/°C		20	100	200	300	400	500
  resistivity  ρ/(μΩ.m)	Solid solution treatment	1.55	1.51	1.5	1.49	1.48	1.47
  	Solid solution aging	1.36	1.36	1.41	1.44	1.47	1.5

  
  

  Application area:

  TB2 alloy is used to produce various head types of rivets, but bolts, screws, or nuts have not yet been produced. High strength is required, with a tensile strength of about 900MPa, as well as good deformation performance, excellent oxidation resistance, corrosion resistance, and weight reduction. For use below 200 ° C, it is recommended to choose.

  
  

  Product form:

  The main semi-finished products of TB2 alloy include sheet, strip, foil, bar, wire, etc. Sheet metal can be made into sheet metal parts, pressure vessels, and solid rocket engine shells. The strip can be made into a star arrow connecting strip. Foil can be made into corrugated shells and honeycomb structures. Silk can be cold riveted to produce various head type rivets, and can be both cold and hot riveted. The rivets can be directly used after being riveted in a solution treated state. Bars can be cold forged to produce various head bolts, which can be used in solution treated or solution aged conditions.

  This alloy is suitable for manufacturing aerospace fasteners that operate below 300 ℃, as well as aerospace fasteners that operate for a short period of time below 500 ℃.