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AISI 403 Stainless Steel vs. ASTM A27 Cast Steel

Both AISI 403 stainless steel and ASTM A27 cast steel are iron alloys. There are 30 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 403 stainless steel and the bottom bar is ASTM A27 cast steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 16 to 25
25 to 27
Fatigue Strength, MPa 200 to 340
170 to 230
Poisson's Ratio 0.28
0.29
Reduction in Area, % 47 to 50
34 to 40
Shear Modulus, GPa 76
73
Tensile Strength: Ultimate (UTS), MPa 530 to 780
460 to 550
Tensile Strength: Yield (Proof), MPa 280 to 570
230 to 310

Thermal Properties

Latent Heat of Fusion, J/g 270
250
Maximum Temperature: Mechanical, °C 740
400
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1400
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 28
52
Thermal Expansion, µm/m-K 9.9
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
7.0 to 7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 6.5
1.8
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.9
1.4
Embodied Energy, MJ/kg 27
18
Embodied Water, L/kg 99
45 to 46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 120
96 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 210 to 840
140 to 260
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 19 to 28
16 to 20
Strength to Weight: Bending, points 19 to 24
17 to 19
Thermal Diffusivity, mm2/s 7.6
14
Thermal Shock Resistance, points 20 to 29
15 to 18