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NA20 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of NA20

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B.S. NA20

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This page is mainly introduced the NA20 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of NA20,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Specification for nickel and nickel alloys: bar

Steel Garde:NA20
Type:Stainless Steels
Country:UK
Standard:B.S.
Standard Number:

ITEM Standard Number Descriptions

1 BS 3076 Specification for nickel and nickel alloys: bar
Application:Specification for nickel and nickel alloys: bar

ITEM	Standard Number	Descriptions
1	BS 3076	Specification for nickel and nickel alloys: bar

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
C	0.04	0.10
Si		1.00
Mn		1.00
P
S		0.015
Cr	18.00	21.00
Ni		remaining
Mo
Al	1.00	1.80
Cu		0.20
Ti	1.80	2.70
Fe		1.50
B		0.0080

Mechanical Properties

Tensile strength	569～209	σb/MPa
Yield Strength	639	σ 0.2 ≥/MPa
Elongation	25	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	134～021	-
HRC	30	-

Physical Properties

Thermal expansion	98-35	e-6/K
Thermal conductivity	65-25	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	2818-7774	째C
Density	9240-9880	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)
NA20 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