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B.S. NA2 Details

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NA2 Application:Specification for nickel-copper alloy castings

Category Type Grade Designations
Grades Stainless Steels NA2 UK - B.S. , BS 3071 - Specification for nickel-copper alloy castings

Chemical composition(wt.%) of NA2 grade: BS 3071

Elements Min.(≥) Max.(≤) Similar Remarks
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
Specification for nickel-copper alloy castings

Mechanical properties of grade NA2 BS 3071

Proof strength
Rp0.2 (MPa)
Tensile strength
Rm (MPa)
Impact energy
KV (J)
Elongation at fracture
A (%)
Reduction in cross section on fracture
Z (%)
As-Heat-Treated Condition Brinell hardness (HBW)
532 (≥) 662 (≥) 14 41 13 Solution and Aging, Annealing, Ausaging, Q+T,etc 341

Physical properties of grade NA2 BS 3071

Property Density
kg/dm3
Temperature T
°C/F
Specific heat
J / kgK
Thermal conductivity
W/mK
Electric resistance
µΩ·cm
Modulus of elasticity
kN/mm2
Expansion rate
143 (≥) 243 (≥) 22 34 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 241
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
389 354 642

NA2 - Form of Supply

Product type Products Dimension Processes Deliver Status
Plates / Sheets Plates / Sheets 0.08-200mm(T)*W*L Forging, hot rolling and cold rolling Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting
Steel Bar Round Bar, Flat Bar, Square Bar Φ8-1200mm*L Forging, hot rolling and cold rolling, Cast Black, Rough Turning, Shot Blasting,
Coil / Strip Steel Coil /Steel Strip 0.03-16.0x1200mm Cold-Rolled & Hot-Rolled Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting
Pipes / Tubes Seamless Pipes/Tubes, Welded Pipes/Tubes OD:6-219mm x WT:0.5-20.0mm Hot extrusion, Cold Drawn, Welded Annealed, Solution and Aging, Q+T, ACID-WASHED

Cross Reference Table(Equivalent Grade)

Grade Standard Country Application
NA2 B.S. UK
Specification for nickel-copper alloy castings
NA20 B.S. UK
Specification for nickel and nickel alloys: bar
NA21 B.S. UK
Specification for nickel and nickel alloys: bar

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