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Characteristics for grade     PT-7M   ( ПТ-7М )



      Grade :     PT-7M   ( ПТ-7М )
      Classification :   Titanium wrought alloy
      Equivalent grades:     Is absent



Chemical composition in % for grade   PT-7M   ( ПТ-7М )
Fe C Si N TiAl Zr OH Impurity
max   0.25max   0.1max   0.12max   0.0493.69 - 95.91.8 - 2.52 - 3max   0.15max   0.006 other 0.3
Comment: Ti is a basis; the percentage of Ti is given approximately.


Mechanical properties under Т=20oС for grade   PT-7M   ( ПТ-7М )
Assortment Dimension Direct. sв sT d5 y KCU Heat treatment
- mm - MPa MPa % % kJ / m2 -
Sheet 1 - 2   500-650450-60030  1000 
Bar     480-680380-55015-2540900 


Technological properties for grade   PT-7M   ( ПТ-7М )
  Weldability: without limitations.


Physical properties for grade   PT-7M   ( ПТ-7М )
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 1.12     4490   1080
100   8.8 9.3     1270
200   8.9 10.5   0.625 1400
300   9.2 11.9   0.659 1520
400   9.4 13.3   0.69  
T E 10- 5 a 10 6 l r C R 10 9



Types of delivery of grade   PT-7M   ( ПТ-7М )
В62 - Steel pipes and connecting parts to them


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

  PT-7M   ( ПТ-7М ) - 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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