EN 1.4434 (X2CrNiMoN18-12-4) Stainless Steel
Austenitic & General Stainless Steels
Property Overview
Density7.9g/cm³
Elastic Modulus200GPa
Tensile Strength660MPa
Yield Strength310MPa
Brinell Hardness200HB
Maximum Service Temperature980°C
Mechanical
A - Min. elongation at fracture (%) (+A)
35-40
+A
Elastic (Young's, Tensile) Modulus
200 GPa
Impact Strength: V-Notched Charpy
90 J
KV - Impact energy (J) longitud., (+A)
+20° 100
+A
KV - Impact energy (J) transverse, (+A)
+20° 60
+A
KV - Impact energy (J) transverse, (+A)
-196° 60
+A
R p0.2 0.2% proof strength (MPa) (+A)
270-290
+A
Rm - Tensile strength (MPa) (+A)
540-770
+A
Tensile Strength: Ultimate (UTS)
660 MPa
Tensile Strength: Yield (Proof)
310 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
Thermal
Latent Heat of Fusion
290 J/g
Maximum Temperature: Corrosion
420 °C
Maximum Temperature: Mechanical
980 °C
Melting Completion (Liquidus)
1450 °C
Melting Onset (Solidus)
1400 °C
Specific Heat Capacity
470 J/kg-K
Thermal Conductivity
15 W/m-K
Thermal Diffusivity
4.0 mm 2 /s
Thermal Expansion
16 µm/m-K
Thermal Shock Resistance
15 points
Electrical
Electrical Conductivity: Equal Volume
2.3 % IACS
Electrical Conductivity: Equal Weight (Specific)
2.6 % IACS
Calculated
PREN (Pitting Resistance)
32
Resilience: Ultimate (Unit Rupture Work)
220 MJ/m 3
Resilience: Unit (Modulus of Resilience)
240 kJ/m 3
Stiffness to Weight: Axial
14 points
Stiffness to Weight: Bending
25 points
Strength to Weight: Axial
23 points
Strength to Weight: Bending
21 points
Environmental
Base Metal Price
21 % relative
Embodied Carbon
4.2 kg CO 2 /kg material
Embodied Energy
57 MJ/kg 24 x 10 3 BTU/lb
Embodied Water
160 L/kg 19 gal/lb
Registered Designations & Aliases
1.44341.4434EN 1.4434 (X2CrNiMoN18-12-4) Stainless SteelX2CrNiMoN18-12-4X2CrNiMoN18-12-4
Standards
EN 10028-7 EN 10028-7: 2007 Flat products made of steels for pressure purposes. Stainless steels
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 10088-2 EN 10088-2: 2005 Stainless steels. Technical delivery conditions for sheet/plate and strip of corrosion resisting steels for general purposes
EN 10088-2 EN 10088-2: Stainless steels - Part 2: Technical delivery conditions for sheet/plate and strip of corrosion resisting steels for general purposes
EN 10088-2 EN 10088-2: Stainless steels - Part 2: Technical delivery conditions for sheet/plate and strip of corrosion resisting steels for general purposes EN 10088-1: Stainless steels - Part 1: List of stainless steels