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AISI 409 Stainless Steel vs. ASTM A514 Steel

Both AISI 409 stainless steel and ASTM A514 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 AISI 409 stainless steel and the bottom bar is ASTM A514 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 24
18 to 21
Fatigue Strength, MPa 140
470 to 540
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 75
73
Shear Strength, MPa 270
490 to 520
Tensile Strength: Ultimate (UTS), MPa 420
790 to 830
Tensile Strength: Yield (Proof), MPa 200
690 to 770

Thermal Properties

Latent Heat of Fusion, J/g 270
250 to 260
Maximum Temperature: Mechanical, °C 710
400 to 440
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1400
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 25
37 to 51
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
7.2 to 7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
8.3 to 8.8

Otherwise Unclassified Properties

Base Metal Price, % relative 6.5
2.3 to 3.8
Density, g/cm3 7.7
7.8 to 7.9
Embodied Carbon, kg CO2/kg material 2.0
1.6 to 1.8
Embodied Energy, MJ/kg 28
21 to 25
Embodied Water, L/kg 94
48 to 57

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 83
140 to 170
Resilience: Unit (Modulus of Resilience), kJ/m3 100
1280 to 1590
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 15
28 to 29
Strength to Weight: Bending, points 16
24 to 25
Thermal Diffusivity, mm2/s 6.7
10 to 14
Thermal Shock Resistance, points 15
23 to 24