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ASTM A203 Steel vs. S33425 Stainless Steel

Both ASTM A203 steel and S33425 stainless steel are iron alloys. There are 31 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is ASTM A203 steel and the bottom bar is S33425 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160 to 180
170
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 22 to 26
45
Fatigue Strength, MPa 210 to 280
210
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
79
Shear Strength, MPa 330 to 370
400
Tensile Strength: Ultimate (UTS), MPa 520 to 590
580
Tensile Strength: Yield (Proof), MPa 290 to 390
230

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Maximum Temperature: Mechanical, °C 410
1100
Melting Completion (Liquidus), °C 1460
1430
Melting Onset (Solidus), °C 1420
1380
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 52
14
Thermal Expansion, µm/m-K 13
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4 to 7.6
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5 to 8.7
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 3.2 to 4.0
27
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 1.6 to 1.7
5.1
Embodied Energy, MJ/kg 21 to 23
71
Embodied Water, L/kg 50 to 52
190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 120
210
Resilience: Unit (Modulus of Resilience), kJ/m3 230 to 410
140
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 18 to 21
20
Strength to Weight: Bending, points 18 to 20
19
Thermal Diffusivity, mm2/s 14
3.7
Thermal Shock Resistance, points 15 to 17
13