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EN 1.4439 Stainless Steel vs. EN 1.4872 Stainless Steel

Both EN 1.4439 stainless steel and EN 1.4872 stainless steel are iron alloys. Both are furnished in the solution annealed (AT) condition. They have 84% 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 1.4439 stainless steel and the bottom bar is EN 1.4872 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220
270
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 40
28
Fatigue Strength, MPa 270
410
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 79
79
Shear Strength, MPa 470
620
Tensile Strength: Ultimate (UTS), MPa 680
950
Tensile Strength: Yield (Proof), MPa 310
560

Thermal Properties

Latent Heat of Fusion, J/g 290
300
Maximum Temperature: Corrosion, °C 410
440
Maximum Temperature: Mechanical, °C 980
1150
Melting Completion (Liquidus), °C 1460
1390
Melting Onset (Solidus), °C 1410
1340
Specific Heat Capacity, J/kg-K 470
490
Thermal Conductivity, W/m-K 14
15
Thermal Expansion, µm/m-K 16
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 22
17
Density, g/cm3 7.9
7.6
Embodied Carbon, kg CO2/kg material 4.5
3.3
Embodied Energy, MJ/kg 61
47
Embodied Water, L/kg 160
180

Common Calculations

PREN (Pitting Resistance) 35
30
Resilience: Ultimate (Unit Rupture Work), MJ/m3 220
230
Resilience: Unit (Modulus of Resilience), kJ/m3 240
780
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
26
Strength to Weight: Axial, points 24
35
Strength to Weight: Bending, points 22
28
Thermal Diffusivity, mm2/s 3.8
3.9
Thermal Shock Resistance, points 15
21

Alloy Composition

Carbon (C), % 0 to 0.030
0.2 to 0.3
Chromium (Cr), % 16.5 to 18.5
24 to 26
Iron (Fe), % 58.7 to 66.9
54.2 to 61.6
Manganese (Mn), % 0 to 2.0
8.0 to 10
Molybdenum (Mo), % 4.0 to 5.0
0
Nickel (Ni), % 12.5 to 14.5
6.0 to 8.0
Nitrogen (N), % 0.12 to 0.22
0.2 to 0.4
Phosphorus (P), % 0 to 0.045
0 to 0.045
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.015