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B.S. NA18 Details

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NA18 Application:Specification for nickel and nickel alloys: bar

Category Type Grade Designations
Grades Stainless Steels NA18 UK - B.S. , BS 3072 - Specification for nickel and nickel alloys: sheet and plate
BS 3073 - Specification for nickel and nickel alloys: strip
BS 3074 - Specification for nickel and nickel alloys: seamless tube
BS 3076 - Specification for nickel and nickel alloys: bar

Chemical composition(wt.%) of NA18 grade: BS 3072

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.25
Si - 0.50
Mn - 1.50
P - -
S - 0.010
Cr - -
Ni+Co 63.00 -
Mo - -
Al 2.30 3.20
Cu 27.00 33.00
Ti 0.35 0.85
Fe - 2.00
Specification for nickel and nickel alloys: bar

Mechanical properties of grade NA18 BS 3072

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)
154 (≥) 341 (≥) 24 13 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 233

Physical properties of grade NA18 BS 3072

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
558 (≥) 629 (≥) 32 41 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 144
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
988 427 163

NA18 - 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
NA18 B.S. UK
Specification for nickel and nickel alloys: bar

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