EN 1.4821 (X15CrNiSi25-4) Stainless Steel
Other Steels
Property Overview
Density7.6g/cm³
Elastic Modulus200GPa
Tensile Strength730MPa
Yield Strength400MPa
Brinell Hardness235HB
Maximum Service Temperature1100°C
Chemical Composition
C
0.1 to 0.2%
CR
24.5 to 26.5%
NI
3.5 to 5.5%
MN
0 to 2.0%
SI
0.8 to 1.5%
N
0 to 0.1%
P
0 to 0.040%
S
0 to 0.015%
FE
64.2 to 71.1%
Mechanical
A - Min. elongation at fracture (%) (+AT)
12-16
+AT
Elastic (Young's, Tensile) Modulus
200 GPa
Elongation at Break
18 %
Fatigue Strength
280 MPa
Poisson's Ratio
0.27
R p0.2 0.2% proof strength (MPa) (+AT)
400
+AT
Rm - Tensile strength (MPa) (+AT)
600-850
+AT
Shear Modulus
79 GPa
Shear Strength
450 MPa
Tensile Strength: Ultimate (UTS)
730 MPa
Tensile Strength: Yield (Proof)
450 MPa
Hardness
+A Soft annealed +AC Annealed to achieve spheroidization of the carbides +AR As rolled +AT Solution annealed +C Cold drawn / hard +CR Cold rolled +FP Treated to ferrite-pearlite structure and hardness range +I Isothermal annealing +LC Cold drawn / soft +M Thermo mechanical rolling +N Normalized +NT Normalized and tempered
+P Precipitation hardened +PE Peeled +QA Air quenched and tempered +QL Liquid quenched and tempered +QT Quenched and tempered +S Treated to improve shearability +SH As rolled and turned +SR Cold drawn and stress relieved +T Tempered +TH Treated to hardness range +WW Warm worked +U Untreated
+A
Brinell Hardness
200
Brinell hardness (HB): (+AT)
235
+AT
Physical
Density
7.6 g/cm 3
Thermal
Latent Heat of Fusion
310 J/g
Maximum Temperature: Corrosion
450 °C
Maximum Temperature: Mechanical
1100 °C
Melting Completion (Liquidus)
1410 °C
Melting Onset (Solidus)
1370 °C
Specific Heat Capacity
490 J/kg-K
Thermal Conductivity
17 W/m-K
Thermal Diffusivity
4.6 mm 2 /s
Thermal Expansion
12 µm/m-K
Thermal Shock Resistance
21 points
Electrical
Electrical Conductivity: Equal Volume
1.9 % IACS
Electrical Conductivity: Equal Weight (Specific)
2.3 % IACS
Calculated
PREN (Pitting Resistance)
26
Resilience: Ultimate (Unit Rupture Work)
110 MJ/m 3
Resilience: Unit (Modulus of Resilience)
500 kJ/m 3
Stiffness to Weight: Axial
15 points
Stiffness to Weight: Bending
26 points
Strength to Weight: Axial
26 points
Strength to Weight: Bending
23 points
Environmental
Base Metal Price
15 % relative
Embodied Carbon
2.9 kg CO 2 /kg material
Embodied Energy
41 MJ/kg
Embodied Energy
41 MJ/kg 18 x 10 3 BTU/lb
Embodied Water
160 L/kg
Embodied Water
160 L/kg 20 gal/lb
Registered Designations & Aliases
1.48211.4821EN 1.4821 (X15CrNiSi25-4) Stainless SteelX15CrNiSi25-4X15CrNiSi25-4
Standards
EN 10088-1 EN 10088-1: 2005 Stainless steels. List of stainless steels
EN 10088-1 EN 10088-1: Stainless steels - Part 1: List of stainless steels
EN 10095 EN 10095: 1999 Heat Resisting Steels and Nickel Alloys
EN 10095 EN 10095: Heat resisting steels and nickel alloys
EN 10095 EN 10095: Heat resisting steels and nickel alloys Duplex Stainless Steels, Iris Alvarez-Armas and Suzanne Degallaix-Moreuil (editors), 2009 Duplex Stainless Steels: Microstructure, Properties and Applications, Robert N. Gunn (editor), 1997 Welding Metallurgy and Weldability of Stainless Steels, John C. Lippold and Damian J. Kotecki, 2005 EN 10088-1: Stainless steels - Part 1: List of stainless steels Corrosion of Stainless Steels, A. John Sedriks, 1996