Alloy Refractaloy 26/ R26 Turbine Bolt used in steam turbine and generating machinery

Product Detail

R26 turbine bolt-7

Alloy R26 bolt, Stud bolt, double bolt, Hexagon bolt

♦  Thread Size: M10-M120 

♦  Length: according to clients drawing or specifaction

♦  Application for : Steam turbine generating equipment

♦  Grade: A Class

Refractaloy 26 is Fe - NI - Co - Cr precipitation hardening type deformation of high temperature alloy, long-term use of C - 570 ℃ temperature range of 540 ℃, the highest temperature can reach 677 C, add element of a Cr, mo alloy solid solution strengthening, high to low titanium, aluminum form y aging strengthening phase, while drilling elements made of titanium, aluminum solubility in the solid solution is reduced, prompted y phase precipitation amount increase, so as to improve the thermal stability of y, reduce y 'phase of the stacking fault energy.

The composite properties of the alloy are superior, with excellent tensile resistance, force relaxation and creep resistance, no notch sensitivity.

Refractaloy 26 Chemical Composition
Alloy

%

Ni

Cr

Fe

Mo

P

Co

C

Mn

Si

S

B

Al

Ti

Refractaloy 26

Min.

35.0

16.0

bal

2.5

- 18.0 - - - - 0.001 - 2.5

Max.

39.0 20.0 3.5 0.03 22.0 0.08 1.0 1.5 0.03 0.01 0.25 3.0
Refractaloy 26 Physical Properties
Density
8.2 g/cm³
Melting point
1200 ℃
Refractaloy 26 Mechanical Properties
Status
Tensile strength 
Rm N/mm²
Yield strength 
Rp 0. 2N/mm²
Elongation 
As %
Brinell hardness
HB
Solution +Aging
1000
550
20
331-262   
(26-35.5)

 

R26 BOLT-9
R26 BOLT

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