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AISI 446 Stainless Steel vs. ASTM A225 Steel

Both AISI 446 stainless steel and ASTM A225 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 446 stainless steel and the bottom bar is ASTM A225 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
190 to 250
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 23
21 to 23
Fatigue Strength, MPa 200
330 to 390
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 79
73
Shear Strength, MPa 360
390 to 520
Tensile Strength: Ultimate (UTS), MPa 570
620 to 830
Tensile Strength: Yield (Proof), MPa 300
460 to 550

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 1180
400
Melting Completion (Liquidus), °C 1510
1460
Melting Onset (Solidus), °C 1430
1420
Specific Heat Capacity, J/kg-K 490
470
Thermal Conductivity, W/m-K 17
52
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 12
2.3
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.4
1.8
Embodied Energy, MJ/kg 35
24 to 25
Embodied Water, L/kg 150
48

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
120 to 170
Resilience: Unit (Modulus of Resilience), kJ/m3 230
580 to 820
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 26
24
Strength to Weight: Axial, points 21
22 to 29
Strength to Weight: Bending, points 20
21 to 25
Thermal Diffusivity, mm2/s 4.6
14
Thermal Shock Resistance, points 19
18 to 24