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SM45 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SM45

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SM45

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This page is mainly introduced the SM45 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SM45,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.

Delivery hardness HBS: 155 ~ 210
The recommended heat treatment system: 850 ℃ to + 560 ℃ oil cold air cooling
σ b frequency/MPa: 600
σ s frequency/MPa: 355
δ 5 (%) frequency: 16
AKU frequency/J (1) : 35

Steel Garde:SM45
Type:Special Alloy
Country:China
Application:Plastic mould with flat steel

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
SM45A		China

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength	231～917	σb/MPa
Yield Strength	036	σ 0.2 ≥/MPa
Elongation	45	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	372～779	-
HRC	30	-

Physical Properties

Thermal expansion	69-11	e-6/K
Thermal conductivity	00-15	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	3527-6424	째C
Density	8646-1073	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)
SM45 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