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ASTM A203 Steel vs. AISI 384 Stainless Steel

Both ASTM A203 steel and AISI 384 stainless steel are iron alloys. There are 25 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is ASTM A203 steel and the bottom bar is AISI 384 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160 to 180
150
Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
76
Tensile Strength: Ultimate (UTS), MPa 520 to 590
480

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 410
910
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
16
Thermal Expansion, µm/m-K 13
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4 to 7.6
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5 to 8.7
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 3.2 to 4.0
20
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 1.6 to 1.7
3.7
Embodied Energy, MJ/kg 21 to 23
52
Embodied Water, L/kg 50 to 52
150

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 18 to 21
17
Strength to Weight: Bending, points 18 to 20
17
Thermal Diffusivity, mm2/s 14
4.3
Thermal Shock Resistance, points 15 to 17
11