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Description

UK KS 347S20 austenitic special steel and 347S20 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Special Steel: 347S20
Category Type Steel Grade Standard Country Application
Steel GradesSpecial Steel 347S20 KS UK austenitic special steel
310S25
314S25
316S14
316S19
316S33
317S11
317S17
318S17
320S18
326S42

Chemical composition(mass fraction)(wt.%) of the 347S20

C(%) Si(%) Mn(%) P(%) S(%) Cr(%) Ni(%) Nb(%)
Max 0.08 Max 1.00 Max 2.00 Max 0.045 Max 0.03 17.0-21.0 9.00-12.0 10×CMax 1.00

Mechanical Properties of steel grade 347S20

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)
759 (≥) 298 (≥) 31 21 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 311

Physical Properties of steel grade 347S20

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
12 - -     0.43 -  
653 617 - 11.3 444   -  
582 - 14 11.2   123 344

Heat Treatment of steel grade 347S20

Heat treated : 1118°C - 1822°C

Technological Curves of steel grade 347S20

Cross Reference Table (Equivalent Grade) of 347S20

Grade Standard Country Application
347S20 KS UK austenitic special steel

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