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40X18H2M chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 40X18H2M

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GOST 40X18H2M

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This page is mainly introduced the 40X18H2M chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 40X18H2M,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:40X18H2M
Type:Stainless Steels
Country:Russia
Standard:GOST
Application:Russia GOCT standard stainless steel and heat resistant steel steel grade and chemical composition

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
C	0.35	0.45
Si		0.50
Mn	0.60	1.00
P	0.08	0.15
S	0.15	0.25
Cr	16.50	18.50
Ni	1.70	2.20
Mo	0.25	0.40

Mechanical Properties

Tensile strength	870～074	σb/MPa
Yield Strength	498	σ 0.2 ≥/MPa
Elongation	59	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	986～442	-
HRC	30	-

Physical Properties

Thermal expansion	05-60	e-6/K
Thermal conductivity	74-59	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	0251-1161	째C
Density	4795-9841	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)
40X18H2M 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