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X55CrMnNiN20-8 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of X55CrMnNiN20-8

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AFNOR X55CrMnNiN20-8

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This page is mainly introduced the X55CrMnNiN20-8 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of X55CrMnNiN20-8,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Valve steels and alloys for internal combustion engines

Steel Garde:X55CrMnNiN20-8
Type:Stainless Steels
Country:France
Standard:AFNOR
Standard Number:

ITEM Standard Number Descriptions

1 NF EN 10090 Valve steels and alloys for internal combustion engines
Application:Valve steels and alloys for internal combustion engines

ITEM	Standard Number	Descriptions
1	NF EN 10090	Valve steels and alloys for internal combustion engines

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
1.4875	AFNOR	France
X55CrMnNiN20-8	ISO	International

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
C	0.50	0.60
Si		0.25
Mn	7.00	10.00
P		0.035
S		0.030
Cr	19.50	21.50
Ni	1.50	2.75
Mo
N	0.20	0.40

Mechanical Properties

Tensile strength	732～983	σb/MPa
Yield Strength	848	σ 0.2 ≥/MPa
Elongation	72	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	224～258	-
HRC	30	-

Physical Properties

Thermal expansion	85-70	e-6/K
Thermal conductivity	43-88	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	0844-9925	째C
Density	2531-1901	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)
X55CrMnNiN20-8 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