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EN 1.4122 Stainless Steel vs. EN 1.4872 Stainless Steel

Both EN 1.4122 stainless steel and EN 1.4872 stainless steel are iron alloys. They have 76% of their average alloy composition in common. There are 32 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 1.4122 stainless steel and the bottom bar is EN 1.4872 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 14
28
Fatigue Strength, MPa 260 to 360
410
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
79
Shear Strength, MPa 480 to 520
620
Tensile Strength: Ultimate (UTS), MPa 790 to 850
950
Tensile Strength: Yield (Proof), MPa 450 to 630
560

Thermal Properties

Latent Heat of Fusion, J/g 280
300
Maximum Temperature: Corrosion, °C 400
440
Maximum Temperature: Mechanical, °C 870
1150
Melting Completion (Liquidus), °C 1440
1390
Melting Onset (Solidus), °C 1400
1340
Specific Heat Capacity, J/kg-K 480
490
Thermal Conductivity, W/m-K 15
15
Thermal Expansion, µm/m-K 10
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
17
Density, g/cm3 7.7
7.6
Embodied Carbon, kg CO2/kg material 2.4
3.3
Embodied Energy, MJ/kg 33
47
Embodied Water, L/kg 120
180

Common Calculations

PREN (Pitting Resistance) 20
30
Resilience: Ultimate (Unit Rupture Work), MJ/m3 93 to 110
230
Resilience: Unit (Modulus of Resilience), kJ/m3 520 to 1000
780
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
26
Strength to Weight: Axial, points 28 to 31
35
Strength to Weight: Bending, points 25 to 26
28
Thermal Diffusivity, mm2/s 4.0
3.9
Thermal Shock Resistance, points 28 to 30
21

Alloy Composition

Carbon (C), % 0.33 to 0.45
0.2 to 0.3
Chromium (Cr), % 15.5 to 17.5
24 to 26
Iron (Fe), % 77.2 to 83.4
54.2 to 61.6
Manganese (Mn), % 0 to 1.5
8.0 to 10
Molybdenum (Mo), % 0.8 to 1.3
0
Nickel (Ni), % 0 to 1.0
6.0 to 8.0
Nitrogen (N), % 0
0.2 to 0.4
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.015