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ASTM A414 Steel vs. S15500 Stainless Steel

Both ASTM A414 steel and S15500 stainless steel are iron alloys. There are 31 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is ASTM A414 steel and the bottom bar is S15500 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 110 to 180
290 to 430
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 15 to 26
6.8 to 16
Fatigue Strength, MPa 140 to 260
350 to 650
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
75
Shear Strength, MPa 230 to 370
540 to 870
Tensile Strength: Ultimate (UTS), MPa 360 to 590
890 to 1490
Tensile Strength: Yield (Proof), MPa 190 to 350
590 to 1310

Thermal Properties

Latent Heat of Fusion, J/g 250
280
Maximum Temperature: Mechanical, °C 400
820
Melting Completion (Liquidus), °C 1460
1430
Melting Onset (Solidus), °C 1420
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 49 to 50
17
Thermal Expansion, µm/m-K 13
11

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
13
Density, g/cm3 7.8 to 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.5 to 1.6
2.7
Embodied Energy, MJ/kg 20 to 22
39
Embodied Water, L/kg 48
130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 69 to 130
98 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 100 to 330
890 to 4460
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 13 to 21
32 to 53
Strength to Weight: Bending, points 14 to 20
26 to 37
Thermal Diffusivity, mm2/s 13
4.6
Thermal Shock Resistance, points 11 to 17
30 to 50