B27

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#B27

Description

B27 Carbon Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Carbon Steel: B27

Category	Type	Steel Grade
Steel Grades	Carbon Steel	B27
		B22
		20MnCr4-2
		B23
		17MnCr5
		B24
		19MnCr5
		B25
		15CrMo4
		B26
		20CrMo4

Chemical composition(mass fraction)(wt.%) of the B27

C ≤	Si ≤	Mn ≤	P ≤	S ≤	Cr	Ni
0.17-0.23	0.4	0.65-1.1	0.025	0.015	0.4-0.75
Mo	Al	Cu	Nb	Ti	V	Ce
0.1-0.2	0.05	0.3		+
N	O2	Pb	B	Other
	0.002

Mechanical Properties of steel grade B27

Yield R_p0.2 (MPa)	Tensile R_m (MPa)	Impact KV/Ku (J)	Elongation A (%)	Reduction in cross section on fracture Z (%)	As-Heat-Treated Condition	Brinell hardness (HBW)
929 (≥)	267 (≥)	31	41	11	Solution and Aging, Annealing, Ausaging, Q+T,etc	422

Physical Properties of steel grade B27

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
12	-	-			0.13	-
671	683	-	31.3	213		-
418	-	33	11.2			134	144

Heat Treatment of steel grade B27

Heat treated : 1793°C - 1879°C

Technological Curves of steel grade B27

No Curve

Cross Reference Table (Equivalent Grade) of B27

Grade	Standard	Country	Application
EN X6CrNiMoB27-12-2	EN		Euronorm Stainless Steel

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B27