EN 1.4125 (X105CrMo17) Stainless Steel
Martensitic Stainless Steels
Property Overview
Density7.7g/cm³
Elastic Modulus200GPa
Tensile Strength800MPa
Yield Strength470MPa
Brinell Hardness285HB
Maximum Service Temperature870°C
Chemical Composition
C
1.0 to 1.2%
CR
16 to 18%
MO
0.4 to 0.8%
MN
0 to 1.0%
SI
0 to 1.0%
P
0 to 0.040%
S
0 to 0.015%
FE
78 to 82.7%
Mechanical
Elastic (Young's, Tensile) Modulus
200 GPa
Elongation at Break
19 %
Fatigue Strength
300 MPa
Poisson's Ratio
0.28
Shear Modulus
77 GPa
Shear Strength
500 MPa
Tensile Strength: Ultimate (UTS)
800 MPa
Tensile Strength: Yield (Proof)
470 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
250
Brinell hardness (HB): (+A)
285
+A
Physical
Density
7.7 g/cm 3
Thermal
Latent Heat of Fusion
280 J/g
Maximum Temperature: Corrosion
390 °C
Maximum Temperature: Mechanical
870 °C
Melting Completion (Liquidus)
1430 °C
Melting Onset (Solidus)
1390 °C
Specific Heat Capacity
480 J/kg-K
Thermal Conductivity
15 W/m-K
Thermal Diffusivity
4.1 mm 2 /s
Thermal Expansion
10 µm/m-K
Thermal Shock Resistance
29 points
Electrical
Electrical Conductivity: Equal Volume
2.2 % IACS
Electrical Conductivity: Equal Weight (Specific)
2.5 % IACS
Calculated
PREN (Pitting Resistance)
19
Resilience: Ultimate (Unit Rupture Work)
130 MJ/m 3
Resilience: Unit (Modulus of Resilience)
570 kJ/m 3
Stiffness to Weight: Axial
14 points
Stiffness to Weight: Bending
25 points
Strength to Weight: Axial
29 points
Strength to Weight: Bending
25 points
Environmental
Base Metal Price
9.0 % relative
Embodied Carbon
2.3 kg CO 2 /kg material
Embodied Energy
32 MJ/kg
Embodied Energy
32 MJ/kg 14 x 10 3 BTU/lb
Embodied Water
120 L/kg
Embodied Water
120 L/kg 14 gal/lb
Registered Designations & Aliases
1.41251.4125EN 1.4125 (X105CrMo17) Stainless SteelX105CrMo17X105CrMo17
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 10088-3 EN 10088-3: 2005 Stainless steels. Technical delivery conditions for semi-finished products, bars, rods, wire, sections and bright products of corrosion resisting steels for general purposes
EN 10088-3 EN 10088-3: Stainless steels - Part 3: Technical delivery conditions for semi-finished products, bars, rods, wire, sections and bright products of corrosion resisting steels for general purposes