SNB21-1~5

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#SNB21-1~5

Description

SNB21-1~5 Carbon Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Carbon Steel: SNB21-1~5

Category	Type	Steel Grade
Steel Grades	Carbon Steel	SNB21-1~5
		SCM415TK
		SCM418TK
		SCM420TK
		SCM430TK
		SCM435TK
		SCM440TK
		SCr420TK
		SNB5
		SNB7
		SNB16

Chemical composition(mass fraction)(wt.%) of the SNB21-1~5

C ≤	Si ≤	Mn ≤	P ≤	S ≤	Cr	Ni
0.36-0.44	0.2-0.35	0.45-0.7	0.025	0.025	0.8-1.15
Mo	Al	Cu	Nb	Ti	V	Ce
0.5-0.65					0.25-0.35
N	Co	Pb	B	Other

Mechanical Properties of steel grade SNB21-1~5

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)
296 (≥)	599 (≥)	42	22	23	Solution and Aging, Annealing, Ausaging, Q+T,etc	412

Physical Properties of steel grade SNB21-1~5

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
11	-	-			0.21	-
247	563	-	13.3	134		-
472	-	32	21.2			324	211

Heat Treatment of steel grade SNB21-1~5

Heat treated : 1989°C - 1887°C

Technological Curves of steel grade SNB21-1~5

No Curve

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