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NA2 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of NA2

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B.S. NA2

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This page is mainly introduced the NA2 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of NA2,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Specification for nickel-copper alloy castings

Steel Garde:NA2
Type:Stainless Steels
Country:UK
Standard:B.S.
Standard Number:

ITEM Standard Number Descriptions

1 BS 3071 Specification for nickel-copper alloy castings
Application:Specification for nickel-copper alloy castings

ITEM	Standard Number	Descriptions
1	BS 3071	Specification for nickel-copper alloy castings

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
NA20	B.S.	UK
NA21	B.S.	UK

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
C		0.15
Si	2.00	3.00
Mn		1.50
P		0.030
S		0.030
Cr
Mo
Ni		remaining
Cu	28.00	34.00

Mechanical Properties

Tensile strength	488～801	σb/MPa
Yield Strength	723	σ 0.2 ≥/MPa
Elongation	60	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	039～242	-
HRC	30	-

Physical Properties

Thermal expansion	45-65	e-6/K
Thermal conductivity	20-32	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	5895-5359	째C
Density	5552-8006	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)
NA2 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