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AISI 444 Stainless Steel vs. ASTM A285 Carbon Steel

Both AISI 444 stainless steel and ASTM A285 carbon steel are iron alloys. There are 31 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is AISI 444 stainless steel and the bottom bar is ASTM A285 carbon steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
110 to 130
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 23
30 to 34
Fatigue Strength, MPa 210
150 to 180
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
73
Shear Strength, MPa 300
250 to 290
Tensile Strength: Ultimate (UTS), MPa 470
380 to 450
Tensile Strength: Yield (Proof), MPa 310
190 to 230

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 930
400
Melting Completion (Liquidus), °C 1460
1470
Melting Onset (Solidus), °C 1420
1420 to 1430
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 23
53
Thermal Expansion, µm/m-K 10
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
8.0

Otherwise Unclassified Properties

Base Metal Price, % relative 15
1.8
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 3.4
1.4
Embodied Energy, MJ/kg 47
18
Embodied Water, L/kg 130
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 95
110
Resilience: Unit (Modulus of Resilience), kJ/m3 240
94 to 150
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 17
13 to 16
Strength to Weight: Bending, points 17
15 to 17
Thermal Diffusivity, mm2/s 6.2
14
Thermal Shock Resistance, points 16
12 to 14