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B 774 307-323

Description

USA SAE B 774 (2010), B 774 307-323 Specialsteel Low Melting Point Alloys and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: B 774 307-323
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel B 774 307-323 Precipitation-Hardening SAE USA Low Melting Point Alloys

Chemical composition(mass fraction)(wt.%) of the B 774 307-323

C Si Mn P S Ni Cr Al Cu Ti Fe N Mo V
≤0.15 ≤1.00 3.75 -4.75 ≤0.045 ≤0.03 9.00 -10.50 19.00 -22.00 ≤ ≥ ≤ ≥ ≤ ≥ ≤ ≥ ≤ ≥ ≤ ≥ ≤ ≥

Mechanical Properties of steel grade B 774 307-323

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)
427 (≥) 352 (≥) 42 34 44 Solution and Aging, Annealing, Ausaging, Q+T,etc 112

Physical Properties of steel grade B 774 307-323

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 - -     0.23 -  
369 634 - 41.3 113   -  
439 - 23 42.2   441 211

Heat Treatment of steel grade B 774 307-323

Heat treated : 1599°C - 1462°C

Technological Curves of steel grade B 774 307-323

Cross Reference Table (Equivalent Grade) of B 774 307-323

Relevant standard of B 774 307-323

B 774 (2010) Low Melting Point Alloys B-774-(2010).pdf

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