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B 848 P/F 1020

Description

USA SAE B 848 (2005), B 848 P/F 1020 Specialsteel Standard Specification for Powder Forged (P/F) Ferrous Materials and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: B 848 P/F 1020
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel B 848 P/F 1020 Precipitation-Hardening SAE USA Standard Specification for Powder Forged (P/F) Ferrous Materials

Chemical composition(mass fraction)(wt.%) of the B 848 P/F 1020

C Si Mn P S Ni Cr Al Cu Ti Fe Mo Co
0.10 -0.20 1.00 -1.40 0.50 -0.80 ≤ ≥ ≤ ≥ 19.00 -22.00 7.00 -9.00 ≤ ≥ ≤ ≥ ≤ ≥ ≤ ≥ ≤ ≥ ≤ ≥

Mechanical Properties of steel grade B 848 P/F 1020

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)
651 (≥) 437 (≥) 44 13 44 Solution and Aging, Annealing, Ausaging, Q+T,etc 313

Physical Properties of steel grade B 848 P/F 1020

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 - -     0.14 -  
638 223 - 43.3 222   -  
167 - 11 33.2   132 423

Heat Treatment of steel grade B 848 P/F 1020

Heat treated : 1651°C - 1564°C

Technological Curves of steel grade B 848 P/F 1020

Cross Reference Table (Equivalent Grade) of B 848 P/F 1020

Relevant standard of B 848 P/F 1020

B 848 (2005) Standard Specification for Powder Forged (P/F) Ferrous Materials B-848-(2005).pdf

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