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ASTM A283 Carbon Steel vs. S40945 Stainless Steel

Both ASTM A283 carbon steel and S40945 stainless 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 ASTM A283 carbon steel and the bottom bar is S40945 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 110 to 140
160
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 26 to 34
25
Fatigue Strength, MPa 150 to 190
160
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
75
Shear Strength, MPa 240 to 310
270
Tensile Strength: Ultimate (UTS), MPa 360 to 480
430
Tensile Strength: Yield (Proof), MPa 180 to 260
230

Thermal Properties

Latent Heat of Fusion, J/g 250
270
Maximum Temperature: Mechanical, °C 400
710
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1420
1410
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 51 to 53
26
Thermal Expansion, µm/m-K 12
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
8.0
Density, g/cm3 7.8 to 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.4
2.2
Embodied Energy, MJ/kg 18
31
Embodied Water, L/kg 46
94

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100 to 110
89
Resilience: Unit (Modulus of Resilience), kJ/m3 91 to 180
140
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 13 to 17
15
Strength to Weight: Bending, points 14 to 17
16
Thermal Diffusivity, mm2/s 14
6.9
Thermal Shock Resistance, points 11 to 15
15