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SMnC420H chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SMnC420H

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CNS SMnC420H

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This page is mainly introduced the SMnC420H chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SMnC420H,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
SMnC420H

Steel Garde:SMnC420H
Type:Special Alloy
Country:China
Standard:CNS
Application:China Taiwan Structural steel

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength	773～623	σb/MPa
Yield Strength	460	σ 0.2 ≥/MPa
Elongation	76	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	126～053	-
HRC	30	-

Physical Properties

Thermal expansion	07-66	e-6/K
Thermal conductivity	95-73	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	7811-7019	째C
Density	4864-1163	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)
SMnC420H 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