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B2N,B2Q

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A2Q B3N,B3Q
#B2N #B2Q

Description

USA ASTM B2N,B2Q Steel Castings, Ferritic and Martensitic, for Pressure-Containing and Other Applications, for Low-Temperature Service and B2N,B2Q Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Special Alloy: B2N,B2Q
Category Type Steel Grade Standard Country Application
Steel GradesSpecial Alloy B2N,B2Q ASTM USA Steel Castings, Ferritic and Martensitic, for Pressure-Containing and Other Applications, for Low-Temperature Service
J02505
J12522
J22500
J42215
J31550
J41500
J31300
J91540
A1Q
A2Q

Chemical composition(mass fraction)(wt.%) of the B2N,B2Q

C(％) Si(％) Mn(％) P(％) S(％) Cr(％) Ni(％) Mo(％)
0.25 0.6 0.50-0.80 0.025 0.025 － 2.00-3.00 －

Mechanical Properties of steel grade B2N,B2Q

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)
867 (≥) 158 (≥) 24 11 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 432

Physical Properties of steel grade B2N,B2Q

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
23 - -     0.42 -  
139 677 - 13.3 232   -  
812 - 11 33.2   242 324

Heat Treatment of steel grade B2N,B2Q

Heat treated : 1584°C - 1367°C

Technological Curves of steel grade B2N,B2Q

Cross Reference Table (Equivalent Grade) of B2N,B2Q

Grade Standard Country Application
ASTM B2N,B2Q AISI USA
B2N,B2Q ASTM USA Steel Castings, Ferritic and Martensitic, for Pressure-Containing and Other Applications, for Low-Temperature Service
B2N,B2Q ASTM USA Steel Castings, Ferritic and Martensitic, for Pressure-Containing and Other Applications, for Low-Temperature Service
A2Q B3N,B3Q
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