NA18 Stainless Steels to BS 3072

NA18 - Specification & Application

  • 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

Specification for nickel and nickel alloys: bar

Chemical composition(wt.%) of NA18 grade: to 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

NA18 - Detail

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)
676 (≥) 192 (≥) 31 32 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 322

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
155 (≥) 574 (≥) 11 12 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 224
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
364 262 328

Equivalent Grade

Equivalent Products

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