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ASTM A414 Steel vs. S39277 Stainless Steel

Both ASTM A414 steel and S39277 stainless steel are iron alloys. There are 31 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 ASTM A414 steel and the bottom bar is S39277 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 110 to 180
250
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 15 to 26
28
Fatigue Strength, MPa 140 to 260
480
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 73
80
Shear Strength, MPa 230 to 370
600
Tensile Strength: Ultimate (UTS), MPa 360 to 590
930
Tensile Strength: Yield (Proof), MPa 190 to 350
660

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Maximum Temperature: Mechanical, °C 400
1100
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 49 to 50
16
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2 to 7.3
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3 to 8.4
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 2.2
23
Density, g/cm3 7.8 to 7.9
7.9
Embodied Carbon, kg CO2/kg material 1.5 to 1.6
4.2
Embodied Energy, MJ/kg 20 to 22
59
Embodied Water, L/kg 48
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 69 to 130
240
Resilience: Unit (Modulus of Resilience), kJ/m3 100 to 330
1070
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 13 to 21
33
Strength to Weight: Bending, points 14 to 20
27
Thermal Diffusivity, mm2/s 13
4.2
Thermal Shock Resistance, points 11 to 17
26