309S20

This page provides 309S20 datasheet, 309S20 mechanical properties, chemical element 309S20, technical specifications of 309S20 steel material properties. 309S20 performance specifications.

309S20
Category Type Steel Grade Standard Country Application
Steel GradesSpecial Steel 309S20 UK austenitic special steel
434S17
215S15
304S51
316S51
316S52
321S51(1010)
321S51(1105)
347S51
321S31
303S31
Datasheet for:Steel Grades:Special Steel:309S20

Chemical composition(mass fraction)(wt.%) of the 309S20

C(%) Si(%) Mn(%) P(%) S(%) Cr(%) Ni(%)
Max 0.12 Max 1.00 Max 2.00 Max 0.045 Max 0.03 22.0-25.0 12.5-15.0

Mechanical properties / Mechanische Eigenschaften / Caracteristiques mecaniques of grade 309S20

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)
872 (≥) 664 (≥) 31 34 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 331
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
34 - -     0.44 -  
933 542 - 43.3 231   -  
416 - 21 31.2   112 122
Heat treated : 1494°C - 1896°C
Directory is being updated.
The material does not have direct Metallography properties.
Directory is being updated.
The material does not have direct Metallography properties.
Directory is being updated.
Cross Reference Table(Equivalent Grade)
Grade Standard Country Application
309S20 UK
austenitic special steel
309S20

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