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Description

USA AISI S34720 Specialsteel Austenitic Chromium Nickel Free-Machining Stainless Steel (Columbium stabilized) and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: S34720
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel S34720 Austenite AISI USA Austenitic Chromium Nickel Free-Machining Stainless Steel (Columbium stabilized)

Chemical composition(mass fraction)(wt.%) of the S34720

C Mn Si P S Cr Ni
≤0.08 ≤2.00 ≤1.00 ≤0.04 0.18 -0.35 17.00 -19.00 9.00 -12.00

Mechanical Properties of steel grade S34720

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)
457 (≥) 815 (≥) 32 32 44 Solution and Aging, Annealing, Ausaging, Q+T,etc 234

Physical Properties of steel grade S34720

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
13 - -     0.21 -  
281 351 - 41.3 124   -  
294 - 11 41.2   214 432

Heat Treatment of steel grade S34720

Heat treated : 1724°C - 1764°C

Technological Curves of steel grade S34720


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