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AISI 316 Stainless Steel vs. ASTM A203 Steel

Both AISI 316 stainless steel and ASTM A203 steel are iron alloys. There are 31 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 AISI 316 stainless steel and the bottom bar is ASTM A203 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160 to 360
160 to 180
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 8.0 to 55
22 to 26
Fatigue Strength, MPa 210 to 430
210 to 280
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
73
Shear Strength, MPa 350 to 690
330 to 370
Tensile Strength: Ultimate (UTS), MPa 520 to 1180
520 to 590
Tensile Strength: Yield (Proof), MPa 230 to 850
290 to 390

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 590
410
Melting Completion (Liquidus), °C 1400
1460
Melting Onset (Solidus), °C 1380
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 15
52
Thermal Expansion, µm/m-K 16
13

Electrical Properties

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

Otherwise Unclassified Properties

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

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 85 to 260
110 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 130 to 1820
230 to 410
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 18 to 41
18 to 21
Strength to Weight: Bending, points 18 to 31
18 to 20
Thermal Diffusivity, mm2/s 4.1
14
Thermal Shock Resistance, points 11 to 26
15 to 17