X9CrNiSiNCe21-11-2 1.4835 BS-EN-10095-1999
Austenitic heat-resisting steels
Steel designation
Name：X9CrNiSiNCe21-11-2
Number：1.4835
X9CrNiSiNCe21-11-2 1.4835 Chemical composition
C：0.05~0.12
Si:1.40~2.50
Mn(max):1.00
P(max):0.045
S(max):0.015
Cr:20～22
Ni:10.00～12.00
N:.0.12~0.20
Ce:0.03～0.08
X9CrNiSiNCe21-11-2 1.4835 Mechanical properties at room temperature
Form: flat products
Thickness a or diameter(d:mm): a ≤75
HB max.:210
Proof strength: Rp0,2N/mm² (min):310
Rp1,0N/mm²(min):350
Tensile strength （Rm N/mm²）:650～850
A % min
Long product:40
Flat products:（1）0,5≤a<3：（1，tr）：37 （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(℃):1150
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℃:170
700℃:66
800℃:31
900℃:15.5
1000℃:(8)
Elongation 1 % in 10 000 h:
600℃:126
700℃:45
800℃:19
900℃:10
1000℃:(5)
Elongation 1 % in 100 000 h:
600℃:80
700℃:26
800℃:11
900℃:6
1000℃:(3)
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℃:50
900℃:24
1000℃:(12)
Rupture in 10 000 h:
600℃:157
700℃:63
800℃:27
900℃:13
1000℃:(7)
Rupture in 100 000 h:
600℃:88
700℃:35
800℃:15
900℃:8
1000℃:(4)
Physical properties for the steels and nickel alloys
Density(kg/dm2):7.8
Linear expansion coefficient (10⁻⁶K⁻¹): between 20℃ and
200℃:17.0
400℃:18.0
600℃:18.5
800℃:19.0
1000℃:19.5
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)