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EN 1.4931 Steel vs. EN 1.4901 Stainless Steel

Both EN 1.4931 steel and EN 1.4901 stainless steel are iron alloys. They have a very high 96% 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 1.4931 steel and the bottom bar is EN 1.4901 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 17
19
Fatigue Strength, MPa 410
310
Impact Strength: V-Notched Charpy, J 30
38
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
76
Tensile Strength: Ultimate (UTS), MPa 810
740
Tensile Strength: Yield (Proof), MPa 620
490

Thermal Properties

Latent Heat of Fusion, J/g 270
260
Maximum Temperature: Mechanical, °C 600
650
Melting Completion (Liquidus), °C 1460
1490
Melting Onset (Solidus), °C 1420
1450
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 24
26
Thermal Expansion, µm/m-K 14
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.8
8.2
Electrical Conductivity: Equal Weight (Specific), % IACS 11
9.3

Otherwise Unclassified Properties

Base Metal Price, % relative 8.5
11
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 2.9
2.8
Embodied Energy, MJ/kg 42
40
Embodied Water, L/kg 100
89

Common Calculations

PREN (Pitting Resistance) 16
14
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
120
Resilience: Unit (Modulus of Resilience), kJ/m3 970
620
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 29
26
Strength to Weight: Bending, points 25
23
Thermal Diffusivity, mm2/s 6.5
6.9
Thermal Shock Resistance, points 22
23

Alloy Composition

Aluminum (Al), % 0
0 to 0.020
Boron (B), % 0
0.0010 to 0.0060
Carbon (C), % 0.2 to 0.26
0.070 to 0.13
Chromium (Cr), % 11.3 to 12.2
8.5 to 9.5
Iron (Fe), % 83.2 to 86.8
85.8 to 89.1
Manganese (Mn), % 0.5 to 0.8
0.3 to 0.6
Molybdenum (Mo), % 1.0 to 1.2
0.3 to 0.6
Nickel (Ni), % 0 to 1.0
0 to 0.4
Niobium (Nb), % 0
0.040 to 0.090
Nitrogen (N), % 0
0.030 to 0.070
Phosphorus (P), % 0 to 0.030
0 to 0.020
Silicon (Si), % 0 to 0.4
0 to 0.5
Sulfur (S), % 0 to 0.020
0 to 0.010
Titanium (Ti), % 0
0 to 0.010
Tungsten (W), % 0 to 0.5
1.5 to 2.0
Vanadium (V), % 0.25 to 0.35
0.15 to 0.25
Zirconium (Zr), % 0
0 to 0.010