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ASTM A588 Steel vs. S45000 Stainless Steel

Both ASTM A588 steel and S45000 stainless steel are iron alloys. There are 31 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 ASTM A588 steel and the bottom bar is S45000 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
280 to 410
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 22
6.8 to 14
Fatigue Strength, MPa 270
330 to 650
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
76
Shear Strength, MPa 350
590 to 830
Tensile Strength: Ultimate (UTS), MPa 550
980 to 1410
Tensile Strength: Yield (Proof), MPa 390
580 to 1310

Thermal Properties

Latent Heat of Fusion, J/g 250 to 260
280
Maximum Temperature: Mechanical, °C 410
840
Melting Completion (Liquidus), °C 1460
1440
Melting Onset (Solidus), °C 1410 to 1420
1390
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 43 to 44
17
Thermal Expansion, µm/m-K 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 2.3 to 2.5
13
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.5 to 1.6
2.8
Embodied Energy, MJ/kg 20 to 22
39
Embodied Water, L/kg 50 to 51
130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
94 to 160
Resilience: Unit (Modulus of Resilience), kJ/m3 400
850 to 4400
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 20
35 to 50
Strength to Weight: Bending, points 19
28 to 36
Thermal Diffusivity, mm2/s 12
4.5
Thermal Shock Resistance, points 16
33 to 47