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B4N,B4Q

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B3N,B3Q C1Q
#B4N #B4Q

Description

USA ASTM B4N,B4Q Steel Castings, Ferritic and Martensitic, for Pressure-Containing and Other Applications, for Low-Temperature Service and B4N,B4Q Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Special Alloy: B4N,B4Q
Category Type Steel Grade Standard Country Application
Steel GradesSpecial Alloy B4N,B4Q ASTM USA Steel Castings, Ferritic and Martensitic, for Pressure-Containing and Other Applications, for Low-Temperature Service
J22500
J42215
J31550
J41500
J31300
J91540
A1Q
A2Q
B2N,B2Q
B3N,B3Q

Chemical composition(mass fraction)(wt.%) of the B4N,B4Q

C(％) Si(％) Mn(％) P(％) S(％) Cr(％) Ni(％) Mo(％)
0.15 0.6 0.50-0.80 0.025 0.025 － 4.00-5.00 －

Mechanical Properties of steel grade B4N,B4Q

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)
269 (≥) 654 (≥) 12 11 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 313

Physical Properties of steel grade B4N,B4Q

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
43 - -     0.34 -  
455 714 - 31.3 313   -  
633 - 44 34.2   223 222

Heat Treatment of steel grade B4N,B4Q

Heat treated : 1218°C - 1943°C

Technological Curves of steel grade B4N,B4Q

Cross Reference Table (Equivalent Grade) of B4N,B4Q

Grade Standard Country Application
ASTM B4N,B4Q AISI USA
B4N,B4Q ASTM USA Steel Castings, Ferritic and Martensitic, for Pressure-Containing and Other Applications, for Low-Temperature Service
B4N,B4Q ASTM USA Steel Castings, Ferritic and Martensitic, for Pressure-Containing and Other Applications, for Low-Temperature Service
B3N,B3Q C1Q
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Our main peoducts of steel are many kinds of special steel, like tool steel, mould steel, alloy steel, alloy constructural steel, heat-resistant steel, high speed tool steel,spring steel and bearing steel , stainless steel and so on, which have formed 12 series and more than 350 varieties with n...

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