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HS-21

Favorite Datasheet
HP 9-4-30 HS-31
#HS-21

Description

USA UNS SAE J 467 (1968), HS-21 Specialsteel Special Purpose Alloys ("Superalloys") and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: HS-21
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel HS-21 Precipitation-Hardening UNS USA Special Purpose Alloys ("Superalloys")

Chemical composition(mass fraction)(wt.%) of the HS-21

C Si Mn Ni Cr Al Cu Ti Fe Mo Co B
≤0.25 ≤ ≥ ≤ ≥ ≤2.50 ≤27.00 ≤ ≥ ≤ ≥ ≤ ≥ ≤1.75 ≤5.50 ≤remaining ≤0.007

Mechanical Properties of steel grade HS-21

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)
668 (≥) 978 (≥) 24 12 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 342

Physical Properties of steel grade HS-21

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
33 - -     0.12 -  
764 431 - 33.3 112   -  
525 - 34 24.2   424 113

Heat Treatment of steel grade HS-21

Heat treated : 1223°C - 1458°C

Technological Curves of steel grade HS-21

Cross Reference Table (Equivalent Grade) of HS-21

Grade Standard Country Application
HS-21

Relevant standard of HS-21

SAE J 467 (1968) Special Purpose Alloys ("Superalloys") SAE-J-467-(1968).pdf
HP 9-4-30 HS-31
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