X6CrNiSiNCe19-10 1.4818 BS-EN-10095-1999
Austenitic heat-resisting steels
Steel designation
Name：X6CrNiSiNCe19-10
Number：1.4818
X6CrNiSiNCe19-10 1.4818 Chemical composition
C：0.04～0.08
Si: 1.00～2.00
Mn(max):max.1.00
P(max):0.045
S(max):0.015
Cr:18.00～20.00
Ni:9.00～11.00
N:.0.12～0.20
Ce: 0.03～0.08
X6CrNiSiNCe19-10 1.4818 Mechanical properties at room temperature
Form: rods and sections
Thickness a or diameter(d:mm): d ≤25
HB max.:210
Proof strength: Rp0,2N/mm² (min):290
Rp1,0N/mm²(min):330
Tensile strength （Rm N/mm²）:600～800
A % min
Long product:40
Flat products:（1）0,5≤a<3：（1，tr）：30 （2）3 < a （1|tr）: 40
Heat treatment
Symbol: +AT (A T=solution annealed)
Temperature(℃):1020～1120
Type of cooling: water, air, cooling sufficiently rapid
Maximum application temperature Ta for air
Ta max(℃):1050
Creep properties
Estimated average value of the strength for 1 % elongation at elevated temperature (Strength in N/mm2)
Elongation 1 % in 1 000 h:
600℃:147
700℃:61
800℃:25
900℃:9
1000℃:2.5
Elongation 1 % in 10 000 h:
600℃:126
700℃:42
800℃:15
900℃:5
1000℃:1.7
Elongation 1 % in 10 0000 h:
600℃:80
700℃:26
800℃:9
900℃:3
1000℃:1.0
Estimated average value of the strength for rupture at elevated temperature
(Strength in N/mm2)
Rupture in 1 000 h:
600℃:238
700℃:105
800℃:46
900℃:18
1000℃:7
Rupture in 10 000 h:
600℃:157
700℃:63
800℃:25
900℃:10
1000℃:4
Rupture in 100 000 h:
600℃:88
700℃:35
800℃:14
900℃:5
1000℃:(1,5)
Physical properties for the steels and nickel alloys
Density(kg/dm2):7.8
Linear expansion coefficient (10⁻⁶K⁻¹): between 20℃ and
200℃:16.5
400℃:18.0
600℃:18.5
800℃:19.0
1000℃:20.0
Thermal conductivity
W/(m.K)
at 20℃: 15
at 500℃：21
Specific heat capacity
kJ(kg.k)
at 20℃：0.50
Electrical resistivity
Ω.mm²/m
at 20℃：0.85
Magnetizability：no (slightly magnetic when cold worked)