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ASTM A204 Steel vs. S15500 Stainless Steel

Both ASTM A204 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 A204 steel and the bottom bar is S15500 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160 to 180
290 to 430
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 18 to 22
6.8 to 16
Fatigue Strength, MPa 200 to 220
350 to 650
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
75
Shear Strength, MPa 330 to 360
540 to 870
Tensile Strength: Ultimate (UTS), MPa 520 to 590
890 to 1490
Tensile Strength: Yield (Proof), MPa 290 to 330
590 to 1310

Thermal Properties

Latent Heat of Fusion, J/g 250
280
Maximum Temperature: Mechanical, °C 410
820
Melting Completion (Liquidus), °C 1470
1430
Melting Onset (Solidus), °C 1420 to 1430
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 52
17
Thermal Expansion, µm/m-K 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 2.4
13
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.5
2.7
Embodied Energy, MJ/kg 20
39
Embodied Water, L/kg 47
130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 90 to 95
98 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 220 to 290
890 to 4460
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 18 to 21
32 to 53
Strength to Weight: Bending, points 18 to 20
26 to 37
Thermal Diffusivity, mm2/s 14
4.6
Thermal Shock Resistance, points 15 to 17
30 to 50