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STR37 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of STR37

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KS STR37

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This page is mainly introduced the STR37 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of STR37,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Heat - resisting steel bars

Steel Garde:STR37
Type:Stainless Steels
Country:Korea
Standard:KS
Standard Number:

ITEM Standard Number Descriptions

1 D 3731 (2002) Heat - resisting steel bars
Metallographic Structure:Austenite
Application:Heat - resisting steel bars

ITEM	Standard Number	Descriptions
1	D 3731 (2002)	Heat - resisting steel bars

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
C	0.15	0.25
Si		1.00
Mn	1.00	1.60
P		0.040
S		0.030
Cr	20.50	22.50
Ni	10.00	12.00
Mo
N	0.15	0.30

Mechanical Properties

Tensile strength	866～943	σb/MPa
Yield Strength	025	σ 0.2 ≥/MPa
Elongation	54	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	665～126	-
HRC	30	-

Physical Properties

Thermal expansion	06-09	e-6/K
Thermal conductivity	94-56	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	0025-4902	째C
Density	1409-8820	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)
STR37 Stainless Steels	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