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R44 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of R44

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STAS/SR R44

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This page is mainly introduced the R44 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of R44,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
R44

Steel Garde:R44
Type:Special Alloy
Country:Romania
Standard:STAS/SR
Application:Structural steel

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
STR446	KS	Korea
SCr440H	CNS	China
SCr440	CNS	China
SCr445	CNS	China

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength	778～334	σb/MPa
Yield Strength	436	σ 0.2 ≥/MPa
Elongation	53	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	018～031	-
HRC	30	-

Physical Properties

Thermal expansion	36-49	e-6/K
Thermal conductivity	62-56	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	2571-4636	째C
Density	7972-5259	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)
R44 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