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AISI 439 Stainless Steel vs. EN 1.0314 Steel

Both AISI 439 stainless steel and EN 1.0314 steel are iron alloys. They have 80% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (4, 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 1.0314 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
92 to 120
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 23
24 to 25
Fatigue Strength, MPa 170
140 to 220
Poisson's Ratio 0.28
0.29
Reduction in Area, % 51
78 to 86
Shear Modulus, GPa 77
73
Shear Strength, MPa 310
200 to 250
Tensile Strength: Ultimate (UTS), MPa 490
320 to 400
Tensile Strength: Yield (Proof), MPa 250
190 to 310

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Maximum Temperature: Mechanical, °C 890
400
Melting Completion (Liquidus), °C 1510
1470
Melting Onset (Solidus), °C 1430
1430
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 25
53
Thermal Expansion, µm/m-K 11
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
6.9
Electrical Conductivity: Equal Weight (Specific), % IACS 3.4
7.9

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
1.8
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 2.3
1.4
Embodied Energy, MJ/kg 34
18
Embodied Water, L/kg 120
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 95
68 to 87
Resilience: Unit (Modulus of Resilience), kJ/m3 160
95 to 250
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 18
11 to 14
Strength to Weight: Bending, points 18
13 to 15
Thermal Diffusivity, mm2/s 6.7
14
Thermal Shock Resistance, points 16
10 to 13

Alloy Composition

Aluminum (Al), % 0 to 0.15
0.020 to 0.060
Carbon (C), % 0 to 0.030
0 to 0.030
Chromium (Cr), % 17 to 19
0
Iron (Fe), % 77.1 to 82.8
99.365 to 99.78
Manganese (Mn), % 0 to 1.0
0.2 to 0.4
Nickel (Ni), % 0 to 0.5
0
Nitrogen (N), % 0 to 0.030
0
Phosphorus (P), % 0 to 0.040
0 to 0.020
Silicon (Si), % 0 to 1.0
0 to 0.1
Sulfur (S), % 0 to 0.030
0 to 0.025
Titanium (Ti), % 0.2 to 1.1
0