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ASTM A203 Steel vs. AISI 316L Stainless Steel

Both ASTM A203 steel and AISI 316L stainless steel are iron alloys. There are 31 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 AISI 316L stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160 to 180
170 to 350
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 22 to 26
9.0 to 50
Fatigue Strength, MPa 210 to 280
170 to 450
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
78
Shear Strength, MPa 330 to 370
370 to 690
Tensile Strength: Ultimate (UTS), MPa 520 to 590
530 to 1160
Tensile Strength: Yield (Proof), MPa 290 to 390
190 to 870

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 410
870
Melting Completion (Liquidus), °C 1460
1400
Melting Onset (Solidus), °C 1420
1380
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 52
15
Thermal Expansion, µm/m-K 13
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4 to 7.6
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5 to 8.7
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 3.2 to 4.0
19
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 1.6 to 1.7
3.9
Embodied Energy, MJ/kg 21 to 23
53
Embodied Water, L/kg 50 to 52
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 120
77 to 230
Resilience: Unit (Modulus of Resilience), kJ/m3 230 to 410
93 to 1880
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 18 to 21
19 to 41
Strength to Weight: Bending, points 18 to 20
18 to 31
Thermal Diffusivity, mm2/s 14
4.1
Thermal Shock Resistance, points 15 to 17
12 to 25