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EN 1.4439 Stainless Steel vs. S82012 Stainless Steel

Both EN 1.4439 stainless steel and S82012 stainless steel are iron alloys. They have 83% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (3, 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 S82012 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 40
40
Fatigue Strength, MPa 270
480
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 79
78
Shear Strength, MPa 470
550
Tensile Strength: Ultimate (UTS), MPa 680
800
Tensile Strength: Yield (Proof), MPa 310
560

Thermal Properties

Latent Heat of Fusion, J/g 290
280
Maximum Temperature: Corrosion, °C 410
420
Maximum Temperature: Mechanical, °C 980
950
Melting Completion (Liquidus), °C 1460
1430
Melting Onset (Solidus), °C 1410
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 14
15
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 22
11
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 4.5
2.4
Embodied Energy, MJ/kg 61
35
Embodied Water, L/kg 160
140

Common Calculations

PREN (Pitting Resistance) 35
24
Resilience: Ultimate (Unit Rupture Work), MJ/m3 220
290
Resilience: Unit (Modulus of Resilience), kJ/m3 240
790
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 24
29
Strength to Weight: Bending, points 22
25
Thermal Diffusivity, mm2/s 3.8
3.9
Thermal Shock Resistance, points 15
23

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.050
Chromium (Cr), % 16.5 to 18.5
19 to 20.5
Copper (Cu), % 0
0 to 1.0
Iron (Fe), % 58.7 to 66.9
71.3 to 77.9
Manganese (Mn), % 0 to 2.0
2.0 to 4.0
Molybdenum (Mo), % 4.0 to 5.0
0.1 to 0.6
Nickel (Ni), % 12.5 to 14.5
0.8 to 1.5
Nitrogen (N), % 0.12 to 0.22
0.16 to 0.26
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 0.8
Sulfur (S), % 0 to 0.015
0 to 0.0050