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B 439 FC-2000-K30

Description

USA SAE B 439 (2012), B 439 FC-2000-K30 Specialsteel Standard Specification for Iron-Base Powder Metallurgy (PM) Bearings (Oil Impregnated) and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: B 439 FC-2000-K30
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel B 439 FC-2000-K30 Precipitation-Hardening SAE USA Standard Specification for Iron-Base Powder Metallurgy (PM) Bearings (Oil Impregnated)

Chemical composition(mass fraction)(wt.%) of the B 439 FC-2000-K30

C Si Mn P S Ni Cr Al Cu Ti Fe Mo Co
≤0.01 ≤0.05 ≤1.50 ≤0.04 ≤0.01 ≤remaining 0.50 -1.50 0.10 -0.50 ≤0.50 ≤ ≥ 1.00 -6.00 26.00 -30.00 ≤2.50

Mechanical Properties of steel grade B 439 FC-2000-K30

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)
227 (≥) 157 (≥) 33 23 33 Solution and Aging, Annealing, Ausaging, Q+T,etc 443

Physical Properties of steel grade B 439 FC-2000-K30

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 - -     0.13 -  
528 847 - 13.3 234   -  
796 - 33 11.2   144 124

Heat Treatment of steel grade B 439 FC-2000-K30

Heat treated : 1352°C - 1525°C

Technological Curves of steel grade B 439 FC-2000-K30

Cross Reference Table (Equivalent Grade) of B 439 FC-2000-K30

Grade Standard Country Application
B-4
ASTM B-4
ASTM B-4
ASTM B-4

Relevant standard of B 439 FC-2000-K30

B 439 (2012) Standard Specification for Iron-Base Powder Metallurgy (PM) Bearings (Oil Impregnated) B-439-(2012).pdf

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