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ASTM A203 Steel vs. N08800 Stainless Steel

Both ASTM A203 steel and N08800 stainless steel are iron alloys. There are 30 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 A203 steel and the bottom bar is N08800 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 22 to 26
4.5 to 34
Fatigue Strength, MPa 210 to 280
150 to 390
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
77
Shear Strength, MPa 330 to 370
340 to 580
Tensile Strength: Ultimate (UTS), MPa 520 to 590
500 to 1000
Tensile Strength: Yield (Proof), MPa 290 to 390
190 to 830

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Maximum Temperature: Mechanical, °C 410
1100
Melting Completion (Liquidus), °C 1460
1390
Melting Onset (Solidus), °C 1420
1360
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 52
12
Thermal Expansion, µm/m-K 13
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4 to 7.6
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5 to 8.7
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 3.2 to 4.0
30
Density, g/cm3 7.9
8.0
Embodied Carbon, kg CO2/kg material 1.6 to 1.7
5.3
Embodied Energy, MJ/kg 21 to 23
76
Embodied Water, L/kg 50 to 52
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 120
42 to 160
Resilience: Unit (Modulus of Resilience), kJ/m3 230 to 410
96 to 1740
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 18 to 21
18 to 35
Strength to Weight: Bending, points 18 to 20
18 to 28
Thermal Diffusivity, mm2/s 14
3.0
Thermal Shock Resistance, points 15 to 17
13 to 25