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ASTM A572 Steel vs. EN 1.4901 Stainless Steel

Both ASTM A572 steel and EN 1.4901 stainless steel are iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is ASTM A572 steel and the bottom bar is EN 1.4901 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 18 to 25
19
Fatigue Strength, MPa 240 to 340
310
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
76
Shear Strength, MPa 300 to 380
460
Tensile Strength: Ultimate (UTS), MPa 470 to 620
740
Tensile Strength: Yield (Proof), MPa 330 to 510
490

Thermal Properties

Latent Heat of Fusion, J/g 250
260
Maximum Temperature: Mechanical, °C 400
650
Melting Completion (Liquidus), °C 1460
1490
Melting Onset (Solidus), °C 1420
1450
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 51
26
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
8.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2 to 8.3
9.3

Otherwise Unclassified Properties

Base Metal Price, % relative 2.0
11
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.6
2.8
Embodied Energy, MJ/kg 22
40
Embodied Water, L/kg 47
89

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100 to 110
120
Resilience: Unit (Modulus of Resilience), kJ/m3 290 to 690
620
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 17 to 22
26
Strength to Weight: Bending, points 17 to 21
23
Thermal Diffusivity, mm2/s 14
6.9
Thermal Shock Resistance, points 14 to 18
23