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Z50CMNNb21-09-02Az chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of Z50CMNNb21-09-02Az

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AFNOR Z50CMNNb21-09-02Az

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This page is mainly introduced the Z50CMNNb21-09-02Az chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of Z50CMNNb21-09-02Az,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:Z50CMNNb21-09-02Az
Type:Stainless Steels
Country:France
Standard:AFNOR
Standard Number:

ITEM Standard Number Descriptions

1 NF A 35-579 Valve steels and alloys for internal combustion engines
Application:Valve steels and alloys for internal combustion engines

ITEM	Standard Number	Descriptions
1	NF A 35-579	Valve steels and alloys for internal combustion engines

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
C	0.45	0.55
Si		0.45
Mn	8.00	10.00
P		0.040
S		0.030
Cr	20.00	22.00
Ni	3.50	5.00
Mo
Nb/Ta	1.80	2.50
W	0.80	1.50
No	0.40	0.60

Mechanical Properties

Tensile strength	619～244	σb/MPa
Yield Strength	919	σ 0.2 ≥/MPa
Elongation	88	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	381～102	-
HRC	30	-

Physical Properties

Thermal expansion	65-73	e-6/K
Thermal conductivity	86-30	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	7830-5801	째C
Density	8443-8974	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)
Z50CMNNb21-09-02Az 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