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EN 1.4931 Steel vs. AISI 202 Stainless Steel

Both EN 1.4931 steel and AISI 202 stainless steel are iron alloys. They have 81% 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 AISI 202 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 240
210 to 300
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 17
14 to 45
Fatigue Strength, MPa 410
290 to 330
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
77
Tensile Strength: Ultimate (UTS), MPa 810
700 to 980
Tensile Strength: Yield (Proof), MPa 620
310 to 580

Thermal Properties

Latent Heat of Fusion, J/g 270
290
Maximum Temperature: Mechanical, °C 600
910
Melting Completion (Liquidus), °C 1460
1400
Melting Onset (Solidus), °C 1420
1360
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 24
15
Thermal Expansion, µm/m-K 14
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.8
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 11
2.9

Otherwise Unclassified Properties

Base Metal Price, % relative 8.5
13
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 2.9
2.8
Embodied Energy, MJ/kg 42
40
Embodied Water, L/kg 100
150

Common Calculations

PREN (Pitting Resistance) 16
20
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
120 to 260
Resilience: Unit (Modulus of Resilience), kJ/m3 970
250 to 840
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 29
25 to 35
Strength to Weight: Bending, points 25
23 to 29
Thermal Diffusivity, mm2/s 6.5
4.0
Thermal Shock Resistance, points 22
15 to 21

Alloy Composition

Carbon (C), % 0.2 to 0.26
0 to 0.15
Chromium (Cr), % 11.3 to 12.2
17 to 19
Iron (Fe), % 83.2 to 86.8
63.5 to 71.5
Manganese (Mn), % 0.5 to 0.8
7.5 to 10
Molybdenum (Mo), % 1.0 to 1.2
0
Nickel (Ni), % 0 to 1.0
4.0 to 6.0
Nitrogen (N), % 0
0 to 0.25
Phosphorus (P), % 0 to 0.030
0 to 0.060
Silicon (Si), % 0 to 0.4
0 to 1.0
Sulfur (S), % 0 to 0.020
0 to 0.030
Tungsten (W), % 0 to 0.5
0
Vanadium (V), % 0.25 to 0.35
0