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321S31

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347S51 303S31
# #321S31

Description

UK 321S31 austenitic special steel and 321S31 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Special Steel: 321S31
Category Type Steel Grade Standard Country Application
Steel GradesSpecial Steel 321S31 UK austenitic special steel
409S19
420S45
434S17
215S15
304S51
316S51
316S52
321S51(1010)
321S51(1105)
347S51

Chemical composition(mass fraction)(wt.%) of the 321S31

C(％) Si(％) Mn(％) P(％) S(％) Cr(％) Ni(％) Nb(%)
Max 0.080 Max 1.00 Max 2.00 Max 0.04 Max 0.03 17.0-19.0 9.00-12.0 10×CMax 1.00

Mechanical Properties of steel grade 321S31

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)
281 (≥) 447 (≥) 23 23 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 341

Physical Properties of steel grade 321S31

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
11 - -     0.13 -  
256 792 - 31.3 434   -  
932 - 12 14.2   134 421

Heat Treatment of steel grade 321S31

Heat treated : 1375°C - 1235°C

Technological Curves of steel grade 321S31

Cross Reference Table (Equivalent Grade) of 321S31

Grade Standard Country Application
Q195 GBT China Engineering and welding
Q215 China Engineering and welding
Q215 B China Engineering and welding
Q235 China Engineering and welding
Q235 B China Engineering and welding
Q235 C China Engineering and welding
Q235 D China Engineering and welding
Q255 A China Engineering and welding
Q255 B China Engineering and welding
Q275 China Engineering and welding
Q235q C China Bridge structure with steel
Q235q D China Bridge structure with steel
Q345q E China Bridge structure with steel
Q345q C China Bridge structure with steel
ASTM 1030 ASTM USA General use carbon steel bar
UNS G10300 UNS USA General use carbon steel bar
ASTM 1005 ASTM USA General use carbon steel bar
UNS G10050 UNS USA General use carbon steel bar
ASTM 1006 ASTM USA General use carbon steel bar
UNS G10060 UNS USA General use carbon steel bar
347S51 303S31
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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...

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