NiCr23Fe 2.4851 BS-EN-10095-1999

NiCr23Fe 2.4851 BS-EN-10095-1999

Heat resisting nickel alloys

Designation

Name:NiCr23Fe

Number:2.4851

NiCr23Fe 2.4851 Chemical composition

C0.03~0.10

Mn(max):max.1.00

Si(max):0.50

P(max):0.020

S(max):0.015

Ni58.00~63.00

Cr:21.00~25.00

Co: (A maximum of 1,5% Co is allowed andcounted as nickel.Reporting of cobalt is not required.)

Fe: max 18.00

Al:1.00~1.70

Ti:max 0.50

Cu:.max.0.50

B:max 0.006

NiCr23Fe 2.4851 Mechanical properties at room temperature

Form: flat products

Thickness a or diameter(d:mm): a ≤75

Form: bars

Thickness a or diameter(d:mm): d ≤160

Form: rods

Thickness a or diameter(d:mm): d ≤25

 

HB max.:220

Proof strength: Rp0,2N/mm² (min):205

 

Tensile strength Rm N/mm²):550~750

A % min

Long product: 30

Flat products:(1)0,5≤a<3:(1,tr):~   (2)3≤ a  1:30 |tr: 30

 

Heat treatment

Symbol: +AT(AT = solution annealed)

Temperature(℃):1100~1200

Type of cooling: water, air, cooling sufficiently rapid

Maximum application temperature Ta for air

Ta max(℃):1200

 

Creep properties

 

Estimated average value of the strength for rupture at elevated temperature

(Strength in N/mm2)

       Rupture in 1 000 h:

600℃:264

700℃:153

800℃:60

900℃:20

 

Rupture in 10 000 h:

600℃:205

700℃:101

800℃:31

900℃:10

1000℃:5

Rupture in 100 000 h:

600℃:156

700℃:55

800℃:17

900℃:4

1000℃:2

 

 

Physical properties for the steels and nickel alloys

Density(kg/dm2):8.1

Linear expansion coefficient (10⁻⁶K⁻¹): between 20℃ and

200℃:14.4

400℃:14.8

600℃:15.7

800℃:16.7

1000℃:17.7

Thermal conductivity

W/(m.K)

      at 20℃: 11.3

at 500℃:19.2

 

Specific heat capacity

kJ(kg.k)

        at 20℃:0.45

 

  Electrical resistivity

             Ω.mm²/m

       at 20℃:1.19

 MagnetizabilityParamagnetic

Learn more