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China YS HHf-1 海绵铪 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: HHf-1 / HHf-1
Category Grade Standard Region/Area Standard Content
Metals HHf-1 YS/T 399 China 海绵铪

Chemical composition(mass fraction)(wt.%) of the HHf-1

Element Min Max Similar
H - 0.0050 -
N - 0.0150 -
C - 0.0250 -
O - 0.1300 -
Cl - 0.0500 -
Si - 0.0500 -
W - 0.0150 -
Ti - 0.0500 -
Fe - 0.0750 -
Cr - 0.0500 -
Al - 0.0500 -

Mechanical Properties of steel grade HHf-1

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)
487 (≥) 652 (≥) 24 34 13 Solution and Aging, Annealing, Ausaging, Q+T,etc 422

Physical Properties of steel grade HHf-1

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
23 - -     0.32 -  
332 168 - 23.3 142   -  
732 - 12 23.2   434 324

Heat Treatment of steel grade HHf-1

Heat treated : 1755°C - 1668°C

Technological Curves of steel grade HHf-1

Cross Reference Table (Equivalent Grade) of HHf-1

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