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NA20

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NA19 NA21
#NA20

Description

UK B.S. BS 3076, NA20 Specialsteel Specification for nickel and nickel alloys: bar and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: NA20
Category Class Grade Standard Country Application
Steel GradesSpecialsteel NA20 B.S. UK Specification for nickel and nickel alloys: bar

Chemical composition(mass fraction)(wt.%) of the NA20

C Si Mn P S Cr Ni Mo Al Cu Ti Fe B
0.04 -0.10 ≤1.00 ≤1.00 ≤ ≥ ≤0.015 18.00 -21.00 ≤remaining ≤ ≥ 1.00 -1.80 ≤0.20 1.80 -2.70 ≤1.50 ≤0.0080

Mechanical Properties of steel grade NA20

Yield
Rp0.2 (MPa)		 Tensile
Rm (MPa)		 Impact
KV/Ku (J)		 Elongation
A (%)		 Reduction in cross section on fracture
Z (%)		 As-Heat-Treated Condition Brinell hardness (HBW)
731 (≥) 842 (≥) 31 42 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 213

Physical Properties of steel grade NA20

Temperature
(°C)		 Modulus of elasticity
(GPa)		 Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and Thermal conductivity
(W/m·°C)		 Specific thermal capacity
(J/kg·°C)		 Specific electrical resistivity
(Ω mm²/m)		 Density
(kg/dm³)		 Poisson’s coefficient, ν
21 - -     0.12 -  
919 299 - 23.3 342   -  
392 - 43 41.2   422 211

Heat Treatment of steel grade NA20

Heat treated : 1745°C - 1649°C

Technological Curves of steel grade NA20

Relevant standard of NA20

BS 3076 Specification for nickel and nickel alloys: bar BS-3076.pdf
NA19 NA21
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