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EN 1.4845 Stainless Steel vs. EN 1.4864 Stainless Steel

Both EN 1.4845 stainless steel and EN 1.4864 stainless steel are iron alloys. Both are furnished in the solution annealed (AT) condition. They have 85% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.4845 stainless steel and the bottom bar is EN 1.4864 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
190
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 38
33
Fatigue Strength, MPa 200
200
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 78
75
Shear Strength, MPa 410
430
Tensile Strength: Ultimate (UTS), MPa 600
650
Tensile Strength: Yield (Proof), MPa 240
260

Thermal Properties

Latent Heat of Fusion, J/g 310
310
Maximum Temperature: Corrosion, °C 450
410
Maximum Temperature: Mechanical, °C 1050
1100
Melting Completion (Liquidus), °C 1400
1390
Melting Onset (Solidus), °C 1360
1340
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
13
Thermal Expansion, µm/m-K 16
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 25
30
Density, g/cm3 7.8
8.0
Embodied Carbon, kg CO2/kg material 4.3
5.3
Embodied Energy, MJ/kg 61
75
Embodied Water, L/kg 190
180

Common Calculations

PREN (Pitting Resistance) 26
17
Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
170
Resilience: Unit (Modulus of Resilience), kJ/m3 140
170
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 21
23
Strength to Weight: Bending, points 20
21
Thermal Diffusivity, mm2/s 4.0
3.3
Thermal Shock Resistance, points 14
17

Alloy Composition

Carbon (C), % 0 to 0.1
0 to 0.15
Chromium (Cr), % 24 to 26
15 to 17
Iron (Fe), % 48.2 to 57
41.7 to 51
Manganese (Mn), % 0 to 2.0
0 to 2.0
Nickel (Ni), % 19 to 22
33 to 37
Nitrogen (N), % 0 to 0.1
0 to 0.1
Phosphorus (P), % 0 to 0.045
0 to 0.045
Silicon (Si), % 0 to 1.5
1.0 to 2.0
Sulfur (S), % 0 to 0.015
0 to 0.015