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EN 1.4854 Stainless Steel vs. EN 1.4439 Stainless Steel

Both EN 1.4854 stainless steel and EN 1.4439 stainless steel are iron alloys. Both are furnished in the solution annealed (AT) condition. They have 70% of their average alloy composition in common. There are 33 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is EN 1.4854 stainless steel and the bottom bar is EN 1.4439 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
220
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 45
40
Fatigue Strength, MPa 310
270
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 78
79
Shear Strength, MPa 520
470
Tensile Strength: Ultimate (UTS), MPa 750
680
Tensile Strength: Yield (Proof), MPa 340
310

Thermal Properties

Latent Heat of Fusion, J/g 330
290
Maximum Temperature: Corrosion, °C 450
410
Maximum Temperature: Mechanical, °C 1170
980
Melting Completion (Liquidus), °C 1370
1460
Melting Onset (Solidus), °C 1330
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 11
14
Thermal Expansion, µm/m-K 15
16

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 34
22
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 5.7
4.5
Embodied Energy, MJ/kg 81
61
Embodied Water, L/kg 220
160

Common Calculations

PREN (Pitting Resistance) 28
35
Resilience: Ultimate (Unit Rupture Work), MJ/m3 270
220
Resilience: Unit (Modulus of Resilience), kJ/m3 280
240
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 26
24
Strength to Weight: Bending, points 23
22
Thermal Diffusivity, mm2/s 2.9
3.8
Thermal Shock Resistance, points 18
15

Alloy Composition

Carbon (C), % 0.040 to 0.080
0 to 0.030
Cerium (Ce), % 0.030 to 0.080
0
Chromium (Cr), % 24 to 26
16.5 to 18.5
Iron (Fe), % 33.6 to 40.6
58.7 to 66.9
Manganese (Mn), % 0 to 2.0
0 to 2.0
Molybdenum (Mo), % 0
4.0 to 5.0
Nickel (Ni), % 34 to 36
12.5 to 14.5
Nitrogen (N), % 0.12 to 0.2
0.12 to 0.22
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 1.2 to 2.0
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.015