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SMn420 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SMn420

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CNS SMn420

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This page is mainly introduced the SMn420 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SMn420,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
SMn420

Steel Garde:SMn420
Type:Special Alloy
Country:China
Standard:CNS
Application:China Taiwan Structural steel

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
SMn420H	CNS	China

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength	973～034	σb/MPa
Yield Strength	507	σ 0.2 ≥/MPa
Elongation	35	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	706～336	-
HRC	30	-

Physical Properties

Thermal expansion	20-26	e-6/K
Thermal conductivity	74-50	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	0502-3323	째C
Density	2424-5543	kg/m³
Resistivity	0.50-0.60	Ohm.mm²/m

Heat Treatment Regime

Annealing	Quenching	Tempering	Normalizing	Q & T
√	√	√	√	√

Size Availability

Steel Grade	Specification	Processing range(mm)
SMn420 Special Alloy	Round Bar and Hollow Bar	Φ1 to Φ2000
	Square and Flat Steel	Φ10 to Φ100
	Plate and Sheet	0.08-800(Thickness)10-1500(Width)Length
	Tube or Pipe	OD:Φ4-410; WT:1-35 mm; Lenght:10-12000
	Coil and Strip Steel	THK:0.1mm Width:1500mm
	Forged	Ring/Cylindrical/Disk