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31X19H9MBБT chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 31X19H9MBБT

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GOST 31X19H9MBБT

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This page is mainly introduced the 31X19H9MBБT chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 31X19H9MBБT,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Russia GOCT standard stainless steel and heat resistant steel steel grade and chemical composition

Steel Garde:31X19H9MBБT
Type:Stainless Steels
Country:Russia
Standard:GOST
Metallographic Structure:Austenite
Application:Russia GOCT standard stainless steel and heat resistant steel steel grade and chemical composition

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
C	0.28	0.35
Si		0.80
Mn	0.80	1.50
P		0.035
S		0.020
Cr	18.00	20.00
Ni	8.00	10.00
Mo	1.00	1.50
W	1.00	1.50
Ti	0.20	0.50
Nb	0.20	0.50

Mechanical Properties

Tensile strength	174～256	σb/MPa
Yield Strength	392	σ 0.2 ≥/MPa
Elongation	70	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	994～631	-
HRC	30	-

Physical Properties

Thermal expansion	20-95	e-6/K
Thermal conductivity	13-25	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	3262-6241	째C
Density	1826-6079	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)
31X19H9MBБT 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