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Description

Romania STAS/SR B Structural steel and B Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Structure Steel: B
Category Type Steel Grade Standard Country Application
Steel GradesStructure Steel B STAS/SR Romania Structural steel
14CrMo4
16Mo3
16Mo5
K410
K460
K510
A
A32
A36
A40

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

C(%) Si(%) Mn(%) P(%) S(%) Cr(%) Ni(%) Cu(%)
0.21 Min 0.31 Min 0.80 0.050 0.050 0.30 Max 0.30 0.30

Mechanical Properties of steel grade B

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)
723 (≥) 331 (≥) 23 13 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 334

Physical Properties of steel grade B

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 - -     0.21 -  
433 574 - 31.3 111   -  
729 - 22 34.2   344 342

Heat Treatment of steel grade B

Heat treated : 1532°C - 1422°C

Technological Curves of steel grade B

Cross Reference Table (Equivalent Grade) of B

Grade Standard Country Application
Q215 B China Engineering and welding
Q255 B China Engineering and welding
BW1A UK Carbon tool steel
BW1B UK Carbide for cutting tools
BW1C UK
BW1C UK
BW2(1) UK Carbide for cutting tools
BW2(1) UK Carbide for cutting tools
BW2 UK Carbide for cutting tools
BW2 UK Carbide for cutting tools
BS1 UK Carbide for cutting tools
BS1 UK Carbide for cutting tools
BS2 UK Carbide for cutting tools
BS2 UK Carbide for cutting tools
BS2 UK Carbide for cutting tools
BS2 UK Carbide for cutting tools
BS5 UK Carbide for cutting tools
BS5 UK Carbide for cutting tools
BO1 UK Carbide for cutting tools
BO1 UK Carbide for cutting tools

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