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AISI 439 Stainless Steel vs. EN 1.0491 Steel

Both AISI 439 stainless steel and EN 1.0491 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 (6, in this case) are not shown.

For each property being compared, the top bar is AISI 439 stainless steel and the bottom bar is EN 1.0491 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
130
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 23
26
Fatigue Strength, MPa 170
200
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Shear Strength, MPa 310
280
Tensile Strength: Ultimate (UTS), MPa 490
440
Tensile Strength: Yield (Proof), MPa 250
270

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Maximum Temperature: Mechanical, °C 890
400
Melting Completion (Liquidus), °C 1510
1460
Melting Onset (Solidus), °C 1430
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 25
47
Thermal Expansion, µm/m-K 11
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 3.4
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
2.4
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.3
1.6
Embodied Energy, MJ/kg 34
21
Embodied Water, L/kg 120
49

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 95
99
Resilience: Unit (Modulus of Resilience), kJ/m3 160
200
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 18
16
Strength to Weight: Bending, points 18
16
Thermal Diffusivity, mm2/s 6.7
13
Thermal Shock Resistance, points 16
14

Alloy Composition

Aluminum (Al), % 0 to 0.15
0 to 0.015
Carbon (C), % 0 to 0.030
0 to 0.18
Chromium (Cr), % 17 to 19
0 to 0.35
Copper (Cu), % 0
0 to 0.6
Iron (Fe), % 77.1 to 82.8
96.1 to 99.55
Manganese (Mn), % 0 to 1.0
0.45 to 1.6
Molybdenum (Mo), % 0
0 to 0.13
Nickel (Ni), % 0 to 0.5
0 to 0.35
Niobium (Nb), % 0
0 to 0.060
Nitrogen (N), % 0 to 0.030
0 to 0.017
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.0
0 to 0.45
Sulfur (S), % 0 to 0.030
0 to 0.025
Titanium (Ti), % 0.2 to 1.1
0 to 0.060
Vanadium (V), % 0
0 to 0.070