AISI: 310

AISI: 310

 

DIN
X 15 Cr Ni Si 25 20 ESU (W. Nr
1.2782)

NF EN ISO 4957 05/00
X 15 Cr Ni Si 25-20 RSL

AISI
≈ 310

Former designation
Z 15 CNS 25.20 RSL
 
Chemical
composition
typical analysis
in %
C Si Cr Ni
0,15 2,0 25,0 20,0
 
 
Steel properties
 
Austenitic heat-resistant steel
withstanding oxidising atmospheres.
Good cold forming properties.
Electrode weldable in same grade.
Steel remelted under conducting slag, with controlled austenite
grain size (g = 4 to 8).
 
 
Applications
 
Tools for the glassmaking industry.
Gravity casted copper alloys.
 
 
Mechanical
Properties
 
Hardness as delivered
HB
Yield strength at 0,2% min.
MPa
Tensile
strength
MPa
180-210 230 600-800

/Creep strength at 1% 1000 hours
°C 500 600 700 800
Mpa 150 53 23 10
 
 
Physical
Properties
 
• Thermal conductivity
° C 20 500
W/(m.k) 14 19

• Thermal expansion
° C 20-200 20-300 20-400 20-500 20-600 20-800 20-1000
10-6
m / (m.k)
16 16,5 17 17 17,5 18 19
 
 
Delivery
condition
 
Hardness as delivered for max. 240 HB
(solution annealed).
 
 
Size range
available or from
European central stock, short delivery time
Peeled round bars
Annealed
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