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S21904 Stainless Steel vs. ASTM A283 Carbon Steel

Both S21904 stainless steel and ASTM A283 carbon steel are iron alloys. There are 31 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is S21904 stainless steel and the bottom bar is ASTM A283 carbon steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210 to 300
110 to 140
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 17 to 51
26 to 34
Fatigue Strength, MPa 380 to 550
150 to 190
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
73
Shear Strength, MPa 510 to 620
240 to 310
Tensile Strength: Ultimate (UTS), MPa 700 to 1000
360 to 480
Tensile Strength: Yield (Proof), MPa 390 to 910
180 to 260

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 980
400
Melting Completion (Liquidus), °C 1400
1460
Melting Onset (Solidus), °C 1350
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 14
51 to 53
Thermal Expansion, µm/m-K 17
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.5
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 15
1.8
Density, g/cm3 7.7
7.8 to 7.9
Embodied Carbon, kg CO2/kg material 3.0
1.4
Embodied Energy, MJ/kg 43
18
Embodied Water, L/kg 160
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 160 to 310
100 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 380 to 2070
91 to 180
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 25 to 36
13 to 17
Strength to Weight: Bending, points 23 to 29
14 to 17
Thermal Diffusivity, mm2/s 3.8
14
Thermal Shock Resistance, points 15 to 21
11 to 15