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EN 1.4421 Stainless Steel vs. EN 1.6932 Steel

Both EN 1.4421 stainless steel and EN 1.6932 steel are iron alloys. They have 82% of their average alloy composition in common. There are 31 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 1.4421 stainless steel and the bottom bar is EN 1.6932 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 11 to 17
14
Fatigue Strength, MPa 380 to 520
460
Impact Strength: V-Notched Charpy, J 30 to 67
40
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Tensile Strength: Ultimate (UTS), MPa 880 to 1100
900
Tensile Strength: Yield (Proof), MPa 620 to 950
720

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Maximum Temperature: Mechanical, °C 870
440
Melting Completion (Liquidus), °C 1440
1460
Melting Onset (Solidus), °C 1400
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 16
45
Thermal Expansion, µm/m-K 10
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 12
4.0
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 2.6
2.0
Embodied Energy, MJ/kg 36
27
Embodied Water, L/kg 130
56

Common Calculations

PREN (Pitting Resistance) 18
2.7
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120 to 140
110
Resilience: Unit (Modulus of Resilience), kJ/m3 960 to 2270
1370
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 31 to 39
32
Strength to Weight: Bending, points 26 to 30
26
Thermal Diffusivity, mm2/s 4.4
12
Thermal Shock Resistance, points 31 to 39
26

Alloy Composition

Carbon (C), % 0 to 0.060
0.24 to 0.32
Chromium (Cr), % 15.5 to 17.5
1.0 to 1.5
Iron (Fe), % 74.4 to 80.5
94.5 to 96.4
Manganese (Mn), % 0 to 1.0
0.15 to 0.4
Molybdenum (Mo), % 0 to 0.7
0.35 to 0.55
Nickel (Ni), % 4.0 to 5.5
1.8 to 2.1
Phosphorus (P), % 0 to 0.035
0 to 0.035
Silicon (Si), % 0 to 0.8
0 to 0.4
Sulfur (S), % 0 to 0.020
0 to 0.035
Vanadium (V), % 0
0.050 to 0.15