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Description

UK 434S20 austenitic special steel and 434S20 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Special Steel: 434S20
Category Type Steel Grade Standard Country Application
Steel GradesSpecial Steel 434S20 UK austenitic special steel
316S33
317S11
317S17
318S17
320S18
326S42
347S20
394S17
430S11
430S18

Chemical composition(mass fraction)(wt.%) of the 434S20

C(%) Si(%) Mn(%) P(%) S(%) Cr(%) Ni(%)
Max 0.12 Max 0.12 Max 1.00 Max 0.04 Max 0.03 16.0-18.0 0.75-1.25

Mechanical Properties of steel grade 434S20

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)
342 (≥) 191 (≥) 14 24 13 Solution and Aging, Annealing, Ausaging, Q+T,etc 314

Physical Properties of steel grade 434S20

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
22 - -     0.23 -  
969 496 - 43.3 331   -  
373 - 43 14.2   122 213

Heat Treatment of steel grade 434S20

Heat treated : 1642°C - 1687°C

Technological Curves of steel grade 434S20

Cross Reference Table (Equivalent Grade) of 434S20

Grade Standard Country Application
434S20 UK austenitic special steel

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