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B 774 216-217

Description

USA SAE B 774 (2010), B 774 216-217 Specialsteel Low Melting Point Alloys and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: B 774 216-217
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel B 774 216-217 Precipitation-Hardening SAE USA Low Melting Point Alloys

Chemical composition(mass fraction)(wt.%) of the B 774 216-217

C Si Mn P S Ni Cr Al Cu Ti Fe N Mo
≤0.08 ≤1.00 7.50 -9.00 ≤ ≥ ≤ ≥ 5.00 -7.00 17.50 -22.00 ≤ ≥ ≤ ≥ ≤ ≥ ≤ ≥ 0.25 -0.50 2.00 -3.00

Mechanical Properties of steel grade B 774 216-217

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)
378 (≥) 553 (≥) 21 43 42 Solution and Aging, Annealing, Ausaging, Q+T,etc 313

Physical Properties of steel grade B 774 216-217

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
34 - -     0.13 -  
818 841 - 23.3 424   -  
191 - 24 34.2   414 222

Heat Treatment of steel grade B 774 216-217

Heat treated : 1259°C - 1787°C

Technological Curves of steel grade B 774 216-217

Cross Reference Table (Equivalent Grade) of B 774 216-217

Relevant standard of B 774 216-217

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

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