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ASTM A203 Steel vs. S20910 Stainless Steel

Both ASTM A203 steel and S20910 stainless steel are iron alloys. There are 29 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 A203 steel and the bottom bar is S20910 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160 to 180
230 to 290
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 22 to 26
14 to 39
Fatigue Strength, MPa 210 to 280
310 to 460
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
79
Shear Strength, MPa 330 to 370
500 to 570
Tensile Strength: Ultimate (UTS), MPa 520 to 590
780 to 940
Tensile Strength: Yield (Proof), MPa 290 to 390
430 to 810

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Maximum Temperature: Mechanical, °C 410
1080
Melting Completion (Liquidus), °C 1460
1420
Melting Onset (Solidus), °C 1420
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 52
13
Thermal Expansion, µm/m-K 13
16

Otherwise Unclassified Properties

Base Metal Price, % relative 3.2 to 4.0
22
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.6 to 1.7
4.8
Embodied Energy, MJ/kg 21 to 23
68
Embodied Water, L/kg 50 to 52
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 120
120 to 260
Resilience: Unit (Modulus of Resilience), kJ/m3 230 to 410
460 to 1640
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 18 to 21
28 to 33
Strength to Weight: Bending, points 18 to 20
24 to 27
Thermal Diffusivity, mm2/s 14
3.6
Thermal Shock Resistance, points 15 to 17
17 to 21