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EN 1.4409 Stainless Steel vs. ASTM A414 Steel

Both EN 1.4409 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 (4, in this case) are not shown.

For each property being compared, the top bar is EN 1.4409 stainless steel and the bottom bar is ASTM A414 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
110 to 180
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 34
15 to 26
Fatigue Strength, MPa 180
140 to 260
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
73
Tensile Strength: Ultimate (UTS), MPa 490
360 to 590
Tensile Strength: Yield (Proof), MPa 220
190 to 350

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Maximum Temperature: Mechanical, °C 990
400
Melting Completion (Liquidus), °C 1440
1460
Melting Onset (Solidus), °C 1390
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
49 to 50
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
7.2 to 7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
8.3 to 8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 19
2.2
Density, g/cm3 7.8
7.8 to 7.9
Embodied Carbon, kg CO2/kg material 3.7
1.5 to 1.6
Embodied Energy, MJ/kg 52
20 to 22
Embodied Water, L/kg 160
48

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
69 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 120
100 to 330
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 17
13 to 21
Strength to Weight: Bending, points 18
14 to 20
Thermal Diffusivity, mm2/s 4.1
13
Thermal Shock Resistance, points 11
11 to 17