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ASTM A285 Carbon Steel vs. AISI 204 Stainless Steel

Both ASTM A285 carbon steel and AISI 204 stainless 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 ASTM A285 carbon steel and the bottom bar is AISI 204 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 110 to 130
210 to 330
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 30 to 34
23 to 39
Fatigue Strength, MPa 150 to 180
320 to 720
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
77
Shear Strength, MPa 250 to 290
500 to 700
Tensile Strength: Ultimate (UTS), MPa 380 to 450
730 to 1100
Tensile Strength: Yield (Proof), MPa 190 to 230
380 to 1080

Thermal Properties

Latent Heat of Fusion, J/g 250
280
Maximum Temperature: Mechanical, °C 400
850
Melting Completion (Liquidus), °C 1470
1410
Melting Onset (Solidus), °C 1420 to 1430
1370
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 53
15
Thermal Expansion, µm/m-K 12
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 8.0
2.9

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
10
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 1.4
2.4
Embodied Energy, MJ/kg 18
35
Embodied Water, L/kg 46
130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
240 to 250
Resilience: Unit (Modulus of Resilience), kJ/m3 94 to 150
360 to 2940
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 13 to 16
27 to 40
Strength to Weight: Bending, points 15 to 17
24 to 31
Thermal Diffusivity, mm2/s 14
4.1
Thermal Shock Resistance, points 12 to 14
16 to 24