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N08020 Stainless Steel vs. ASTM A203 Steel

Both N08020 stainless steel and ASTM A203 steel are iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is N08020 stainless steel and the bottom bar is ASTM A203 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 15 to 34
22 to 26
Fatigue Strength, MPa 210 to 240
210 to 280
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Shear Strength, MPa 380 to 410
330 to 370
Tensile Strength: Ultimate (UTS), MPa 610 to 620
520 to 590
Tensile Strength: Yield (Proof), MPa 270 to 420
290 to 390

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Maximum Temperature: Mechanical, °C 1100
410
Melting Completion (Liquidus), °C 1410
1460
Melting Onset (Solidus), °C 1360
1420
Specific Heat Capacity, J/kg-K 460
470
Thermal Conductivity, W/m-K 12
52
Thermal Expansion, µm/m-K 15
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.6
7.4 to 7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 1.8
8.5 to 8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 38
3.2 to 4.0
Density, g/cm3 8.2
7.9
Embodied Carbon, kg CO2/kg material 6.6
1.6 to 1.7
Embodied Energy, MJ/kg 92
21 to 23
Embodied Water, L/kg 220
50 to 52

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 83 to 170
110 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 180 to 440
230 to 410
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 21
18 to 21
Strength to Weight: Bending, points 20
18 to 20
Thermal Diffusivity, mm2/s 3.2
14
Thermal Shock Resistance, points 15
15 to 17