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STR38 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of STR38

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KS STR38

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This page is mainly introduced the STR38 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of STR38,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
KS standard austenitic heat resistant steel

Steel Garde:STR38
Type:Special Alloy
Country:Korea
Standard:KS
Application:KS standard austenitic heat resistant steel

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength	149～793	σb/MPa
Yield Strength	547	σ 0.2 ≥/MPa
Elongation	51	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	389～939	-
HRC	30	-

Physical Properties

Thermal expansion	65-98	e-6/K
Thermal conductivity	22-23	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	5344-2290	째C
Density	8840-8605	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)
STR38 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