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Brazil NBR HK-30 Casting stainless steel - Austenitic for service at high temperatures and in corrosive media – Specification and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: HK-30 / HK-30
Category Grade Standard Region/Area Standard Content
Metals HK-30 ABNT NBR 8636 Brazil Casting stainless steel - Austenitic for service at high temperatures and in corrosive media – Specification

Chemical composition(mass fraction)(wt.%) of the HK-30

Element Min Max Similar
C 0.2500 0.3500 -
Mn - 1.5000 -
P - 0.0400 -
S - 0.0400 -
Si - 1.7500 -
Ni 19.0000 22.0000 -
Cr 23.0000 27.0000 -
Mo - 0.5000 -

Mechanical Properties of steel grade HK-30

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)
174 (≥) 745 (≥) 13 41 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 213

Physical Properties of steel grade HK-30

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
31 - -     0.23 -  
432 331 - 31.3 243   -  
463 - 43 44.2   244 331

Heat Treatment of steel grade HK-30

Heat treated : 1854°C - 1454°C

Technological Curves of steel grade HK-30

Cross Reference Table (Equivalent Grade) of HK-30

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