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Characteristics for grade     OT4-0   ( ОТ4-0 )



      Grade :     OT4-0   ( ОТ4-0 )
      Classification :   Titanium wrought alloy
      Equivalent grades:     Is absent



Chemical composition in % for grade   OT4-0   ( ОТ4-0 )
Fe C Si Mn N TiAl Zr OH Impurity
max   0.3max   0.1max   0.120.5 - 1.3max   0.0596.13 - 98.80.4 - 1.4max   0.3max   0.15max   0.012 other 0.3
Comment: Ti is a basis; the percentage of Ti is given approximately.


Mechanical properties under Т=20oС for grade   OT4-0   ( ОТ4-0 )
Assortment Dimension Direct. sв sT d5 y KCU Heat treatment
- mm - MPa MPa % % kJ / m2 -
Sheet annealed , GOST 22178-76     470   20-30   
Pipe, GOST 24890-81     490-637  15    
Bar, GOST 26492-85     440   13-1530-35400-500Annealing
Bar, GOST 26492-85     440-635  20 32-40500-700Annealing
Plate , GOST 23755-79 11 - 150   490-635  10-1218  


    Brinell hardness for     OT4-0   ( ОТ4-0 )   ,     Sheet HB 10 -1 = 200   MPa
    Brinell hardness for     OT4-0   ( ОТ4-0 )   ,     Bar HB 10 -1 = 156 - 207   MPa


Technological properties for grade   OT4-0   ( ОТ4-0 )
  Weldability: without limitations.


Physical properties for grade   OT4-0   ( ОТ4-0 )
T E 10- 5 a 10 6 l r C R 10 9
Grade MPa 1/Grade Watt/(m·Grade) kg/m3 J/(kg·Grade) Ohm·m
20 1.15     4514    



Types of delivery of grade   OT4-0   ( ОТ4-0 )
B53 - Sheets and Strips
B55 - Bars
B64 - Pipes of non-ferrous metals and alloys


Specification :
Mechanical properties :
sв - Tensile strength , [MPa]
sT - Yield stress, [MPa]
d5 - Specific elongation at fracture , [ % ]
y - Reduction of area , [ % ]
KCU - Impact strength , [ kJ / m2]
HB - Brinell hardness , [MPa]

Physical properties :
T - Test temperature , [Grade]
E - Young modulus , [MPa]
a - Coefficient of linear expansion (range 20o - T ) , [1/Grade]
l - Termal (heat) condition coefficient , [Watt/(m·Grade)]
r - Density , [kg/m3]
C - Specific heat ( range 20o - T ), [J/(kg·Grade)]
R - Electrical resistance , [Ohm·m]

Weldability :
without limitations - welding is done without heating and subsequent heat treeting
limited weldability - welding is possible under heating up to 100-120 grade and subsequent heat treeting
hard weldability - obtaining the quality welding needs the additional operations:heating up to 200-300 grade; the heat treeting ia annealing

  OT4-0   ( ОТ4-0 ) - Titanium wrought alloy: chemical composition, mechanical and physical properties, hardness
Database of steels and alloys (Marochnik) contains information about chemical composition and properties more then 3000 steels and alloys

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