EN 1.4848 (GX40CrNiSi25-20) Cast Stainless Steel
Other Steels
Property Overview
Density7.8g/cm³
Elastic Modulus200GPa
Tensile Strength450MPa
Yield Strength250MPa
Brinell Hardness150HB
Maximum Service Temperature1100°C
Chemical Composition
C
0.3 to 0.5%
CR
24 to 27%
NI
19 to 22%
MO
0 to 0.5%
MN
0 to 2.0%
SI
1.0 to 2.5%
P
0 to 0.040%
S
0 to 0.030%
FE
45.4 to 55.7%
Mechanical
A - Min. elongation at fracture (%)
8
Elastic (Young's, Tensile) Modulus
200 GPa
Elongation at Break
9.0 %
Fatigue Strength
130 MPa
Poisson's Ratio
0.28
R p0.2 0.2% proof strength (MPa)
220
Rm - Tensile strength (MPa)
450
Shear Modulus
78 GPa
Tensile Strength: Ultimate (UTS)
510 MPa
Tensile Strength: Yield (Proof)
250 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
150
Physical
Density
7.8 g/cm 3
Thermal
Latent Heat of Fusion
320 J/g
Maximum Temperature: Corrosion
440 °C
Maximum Temperature: Mechanical
1100 °C
Melting Completion (Liquidus)
1390 °C
Melting Onset (Solidus)
1340 °C
Specific Heat Capacity
490 J/kg-K
Thermal Conductivity
15 W/m-K
Thermal Diffusivity
3.9 mm 2 /s
Thermal Expansion
16 µm/m-K
Thermal Shock Resistance
11 points
Electrical
Electrical Conductivity: Equal Volume
2.0 % IACS
Electrical Conductivity: Equal Weight (Specific)
2.3 % IACS
Calculated
PREN (Pitting Resistance)
26
Resilience: Ultimate (Unit Rupture Work)
38 MJ/m 3
Resilience: Unit (Modulus of Resilience)
150 kJ/m 3
Stiffness to Weight: Axial
14 points
Stiffness to Weight: Bending
25 points
Strength to Weight: Axial
18 points
Strength to Weight: Bending
18 points
Environmental
Base Metal Price
25 % relative
Embodied Carbon
4.4 kg CO 2 /kg material
Embodied Energy
63 MJ/kg
Embodied Energy
63 MJ/kg 27 x 10 3 BTU/lb
Embodied Water
200 L/kg
Embodied Water
200 L/kg 23 gal/lb
Registered Designations & Aliases
1.48481.4848EN 1.4848 (GX40CrNiSi25-20) Cast Stainless SteelGX40CrNiSi25-20GX40CrNiSi25-20
Standards
EN 10295 EN 10295: 2002 Heat resistant steel castings
EN 10295 EN 10295: Heat Resistant Steel Castings
EN 10295 EN 10295: Heat Resistant Steel Castings Machining of Stainless Steels and Super Alloys: Traditional and Nontraditional Techniques, Helmi A. Youssef, 2016 Welding Metallurgy and Weldability of Stainless Steels, John C. Lippold and Damian J. Kotecki, 2005