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B3N,B3Q

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B2N,B2Q B4N,B4Q
#B3N #B3Q

Description

USA ASTM B3N,B3Q Steel Castings, Ferritic and Martensitic, for Pressure-Containing and Other Applications, for Low-Temperature Service and B3N,B3Q Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Special Alloy: B3N,B3Q
Category Type Steel Grade Standard Country Application
Steel GradesSpecial Alloy B3N,B3Q ASTM USA Steel Castings, Ferritic and Martensitic, for Pressure-Containing and Other Applications, for Low-Temperature Service
J12522
J22500
J42215
J31550
J41500
J31300
J91540
A1Q
A2Q
B2N,B2Q

Chemical composition(mass fraction)(wt.%) of the B3N,B3Q

C(％) Si(％) Mn(％) P(％) S(％) Cr(％) Ni(％) Mo(％)
0.15 0.6 0.50-0.80 0.025 0.025 － 3.00-4.00 －

Mechanical Properties of steel grade B3N,B3Q

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)
824 (≥) 933 (≥) 22 14 42 Solution and Aging, Annealing, Ausaging, Q+T,etc 111

Physical Properties of steel grade B3N,B3Q

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
21 - -     0.13 -  
583 668 - 11.3 424   -  
157 - 12 23.2   132 441

Heat Treatment of steel grade B3N,B3Q

Heat treated : 1823°C - 1425°C

Technological Curves of steel grade B3N,B3Q

Cross Reference Table (Equivalent Grade) of B3N,B3Q

Grade Standard Country Application
ASTM B3N,B3Q AISI USA
B3N,B3Q ASTM USA Steel Castings, Ferritic and Martensitic, for Pressure-Containing and Other Applications, for Low-Temperature Service
B3N,B3Q ASTM USA Steel Castings, Ferritic and Martensitic, for Pressure-Containing and Other Applications, for Low-Temperature Service
B2N,B2Q B4N,B4Q
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