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K91

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K80 K4002
#K91

Description

China GBT K91 conventional cast superalloy and K91 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Special Alloy: K91
Category Type Steel Grade Standard Country Application
Steel GradesSpecial Alloy K91 GBT China conventional cast superalloy
K23
K23A
K24
K430
K38
K38G
K41
K461
K77
K80

Chemical composition(mass fraction)(wt.%) of the K91

C(％) Si(％) Mn(％) P(％) S(％) Cr(％) Ni(％) Mo(％) Co(%) B(%) Al(%) Ti(%) Mg(%) Fe(%)
0.02 0.10 0.10 0.010 0.010000000000000000 9.50-10.50 Bal 2.75-3.25 9.50-10.50 0.080-0.120 5.25-5.75 5.00-5.50 0.005 0.50

Mechanical Properties of steel grade K91

Yield
Rp0.2 (MPa)		 Tensile
Rm (MPa)		 Impact
KV/Ku (J)		 Elongation
A (%)		 Reduction in cross section on fracture
Z (%)		 As-Heat-Treated Condition Brinell hardness (HBW)
462 (≥) 542 (≥) 13 24 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 111

Physical Properties of steel grade K91

Temperature
(°C)		 Modulus of elasticity
(GPa)		 Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and Thermal conductivity
(W/m·°C)		 Specific thermal capacity
(J/kg·°C)		 Specific electrical resistivity
(Ω mm²/m)		 Density
(kg/dm³)		 Poisson’s coefficient, ν
42 - -     0.43 -  
767 597 - 44.3 324   -  
345 - 42 32.2   324 433

Heat Treatment of steel grade K91

Heat treated : 1399°C - 1164°C

Technological Curves of steel grade K91

Cross Reference Table (Equivalent Grade) of K91

Grade Standard Country Application
K91 GBT China conventional cast superalloy
K80 K4002
Available Suppliers
Jiangyou Longhai Special Steel Co.,Ltd.
Jiangyou Longhai Special Steel Co.,Ltd.

Our main peoducts of steel are many kinds of special steel, like tool steel, mould steel, alloy steel, alloy constructural steel, heat-resistant steel, high speed tool steel,spring steel and bearing steel , stainless steel and so on, which have formed 12 series and more than 350 varieties with n...

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