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EN 1.4421 Stainless Steel vs. ASTM A285 Carbon Steel

Both EN 1.4421 stainless steel and ASTM A285 carbon steel are iron alloys. There are 29 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 EN 1.4421 stainless steel and the bottom bar is ASTM A285 carbon steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 11 to 17
30 to 34
Fatigue Strength, MPa 380 to 520
150 to 180
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Tensile Strength: Ultimate (UTS), MPa 880 to 1100
380 to 450
Tensile Strength: Yield (Proof), MPa 620 to 950
190 to 230

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Maximum Temperature: Mechanical, °C 870
400
Melting Completion (Liquidus), °C 1440
1470
Melting Onset (Solidus), °C 1400
1420 to 1430
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 16
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 12
1.8
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 2.6
1.4
Embodied Energy, MJ/kg 36
18
Embodied Water, L/kg 130
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120 to 140
110
Resilience: Unit (Modulus of Resilience), kJ/m3 960 to 2270
94 to 150
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 31 to 39
13 to 16
Strength to Weight: Bending, points 26 to 30
15 to 17
Thermal Diffusivity, mm2/s 4.4
14
Thermal Shock Resistance, points 31 to 39
12 to 14

Comparable Variants