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B-4

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B 477 Grade D B-4
#B-4

Description

USA ASTM SAE AMS T 9046 (2002), B-4 Specialsteel Titanium and Titanium Alloy, Sheet, Strip, and Plate and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: B-4
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel B-4 Precipitation-Hardening ASTM USA Titanium and Titanium Alloy, Sheet, Strip, and Plate

Chemical composition(mass fraction)(wt.%) of the B-4

C Si Mn P S Ni Cr Al Cu Ti Fe Mo Co
≤0.01 ≤0.05 ≤1.50 ≤0.04 ≤0.01 ≤remaining 0.50 -1.50 0.10 -0.50 ≤0.50 ≤ ≥ 1.00 -6.00 26.00 -30.00 ≤2.50

Mechanical Properties of steel grade B-4

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)
618 (≥) 591 (≥) 41 42 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 424

Physical Properties of steel grade B-4

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
41 - -     0.11 -  
699 977 - 41.3 312   -  
173 - 22 13.2   244 131

Heat Treatment of steel grade B-4

Heat treated : 1671°C - 1995°C

Technological Curves of steel grade B-4

Cross Reference Table (Equivalent Grade) of B-4

Grade Standard Country Application
B-4
ASTM B-4
ASTM B-4
ASTM B-4

Relevant standard of B-4

SAE AMS T 9046 (2002) Titanium and Titanium Alloy, Sheet, Strip, and Plate SAE-AMS-T-9046-(2002).pdf
B 477 Grade D B-4
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