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

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KS STRl

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

Steel Garde:STRl
Type:Special Alloy
Country:Korea
Standard:KS
Application:KS standard martensite heat resistant steel

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
STRll	KS	Korea

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength	520～899	σb/MPa
Yield Strength	156	σ 0.2 ≥/MPa
Elongation	30	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	095～010	-
HRC	30	-

Physical Properties

Thermal expansion	56-65	e-6/K
Thermal conductivity	82-87	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	1214-4333	째C
Density	4450-5724	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)
STRl 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