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R37 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of R37

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STAS/SR R37

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This page is mainly introduced the R37 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of R37,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
R37

Steel Garde:R37
Type:Special Alloy
Country:Romania
Standard:STAS/SR
Application:Structural steel

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
STR37	KS	Korea

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength	421～717	σb/MPa
Yield Strength	244	σ 0.2 ≥/MPa
Elongation	25	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	857～469	-
HRC	30	-

Physical Properties

Thermal expansion	31-58	e-6/K
Thermal conductivity	65-12	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	7860-7537	째C
Density	7531-3767	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)
R37 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