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ASTM A572 Steel vs. N08904 Stainless Steel

Both ASTM A572 steel and N08904 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 A572 steel and the bottom bar is N08904 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140 to 190
170
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 18 to 25
38
Fatigue Strength, MPa 240 to 340
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
79
Shear Strength, MPa 300 to 380
370
Tensile Strength: Ultimate (UTS), MPa 470 to 620
540
Tensile Strength: Yield (Proof), MPa 330 to 510
240

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Maximum Temperature: Mechanical, °C 400
1100
Melting Completion (Liquidus), °C 1460
1440
Melting Onset (Solidus), °C 1420
1390
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 51
12
Thermal Expansion, µm/m-K 13
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2 to 8.3
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 2.0
32
Density, g/cm3 7.8
8.1
Embodied Carbon, kg CO2/kg material 1.6
5.8
Embodied Energy, MJ/kg 22
79
Embodied Water, L/kg 47
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100 to 110
170
Resilience: Unit (Modulus of Resilience), kJ/m3 290 to 690
150
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 17 to 22
19
Strength to Weight: Bending, points 17 to 21
18
Thermal Diffusivity, mm2/s 14
3.1
Thermal Shock Resistance, points 14 to 18
12