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309S20

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303S31 310S17
#309S20

Description

UK 309S20 austenitic special steel and 309S20 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Special Steel: 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

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 of steel 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)
664 (≥) 716 (≥) 41 11 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 243

Physical Properties of steel grade 309S20

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 - -     0.13 -  
763 894 - 24.3 321   -  
388 - 43 41.2   341 211

Heat Treatment of steel grade 309S20

Heat treated : 1542°C - 1168°C

Technological Curves of steel grade 309S20

Cross Reference Table (Equivalent Grade) of 309S20

Grade Standard Country Application
309S20 UK austenitic special steel
303S31 310S17
Available Suppliers
Jiangyou Longhai Special Steel Co.,Ltd.
Jiangyou Longhai Special Steel Co.,Ltd.

Our main peoducts of steel are many kinds of special steel, like tool steel, mould steel, alloy steel, alloy constructural steel, heat-resistant steel, high speed tool steel,spring steel and bearing steel , stainless steel and so on, which have formed 12 series and more than 350 varieties with n...

Rfq.: sales@longhaisteel.com
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