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EN 1.4031 Stainless Steel vs. ASTM A414 Steel

Both EN 1.4031 stainless steel and ASTM A414 steel are iron alloys. There are 30 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 1.4031 stainless steel and the bottom bar is ASTM A414 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 11 to 13
15 to 26
Fatigue Strength, MPa 220 to 400
140 to 260
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
73
Shear Strength, MPa 400 to 540
230 to 370
Tensile Strength: Ultimate (UTS), MPa 670 to 900
360 to 590
Tensile Strength: Yield (Proof), MPa 390 to 730
190 to 350

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Maximum Temperature: Mechanical, °C 770
400
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 30
49 to 50
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.1
7.2 to 7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 3.7
8.3 to 8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
2.2
Density, g/cm3 7.7
7.8 to 7.9
Embodied Carbon, kg CO2/kg material 1.9
1.5 to 1.6
Embodied Energy, MJ/kg 27
20 to 22
Embodied Water, L/kg 100
48

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 77 to 94
69 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 380 to 1360
100 to 330
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 24 to 32
13 to 21
Strength to Weight: Bending, points 22 to 27
14 to 20
Thermal Diffusivity, mm2/s 8.1
13
Thermal Shock Resistance, points 23 to 32
11 to 17