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Description

USA ASTM HP Steel Castings, Iron-Chromium and Iron-Chromium-Nickel,Heat Resistant, for General Application and HP Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Special Alloy: HP
Category Type Steel Grade Standard Country Application
Steel GradesSpecial Alloy HP ASTM USA Steel Castings, Iron-Chromium and Iron-Chromium-Nickel,Heat Resistant, for General Application
HK
HE
HT
HU
HW
HX
HC
HD
HL
HN

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

C(%) Si(%) Mn(%) P(%) S(%) Cr(%) Ni(%) Mo(%)
0.35-0.75 2.5 2 0.04 0.04 24.0-28.0 33.0-37.0 0.5

Mechanical Properties of steel grade HP

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)
991 (≥) 212 (≥) 44 23 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 233

Physical Properties of steel grade HP

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
21 - -     0.44 -  
241 429 - 31.3 344   -  
459 - 33 24.2   311 342

Heat Treatment of steel grade HP

Heat treated : 1799°C - 1512°C

Technological Curves of steel grade HP

Cross Reference Table (Equivalent Grade) of HP

Grade Standard Country Application
ASTM HP AISI USA
HP ASTM USA Steel Castings, Iron-Chromium and Iron-Chromium-Nickel,Heat Resistant, for General Application
HP ASTM USA Steel Castings, Iron-Chromium and Iron-Chromium-Nickel,Heat Resistant, for General Application

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