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EN 1.4125 Stainless Steel vs. ASTM A572 Steel

Both EN 1.4125 stainless steel and ASTM A572 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 EN 1.4125 stainless steel and the bottom bar is ASTM A572 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 250
140 to 190
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 19
18 to 25
Fatigue Strength, MPa 300
240 to 340
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Shear Strength, MPa 500
300 to 380
Tensile Strength: Ultimate (UTS), MPa 800
470 to 620
Tensile Strength: Yield (Proof), MPa 470
330 to 510

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Maximum Temperature: Mechanical, °C 870
400
Melting Completion (Liquidus), °C 1430
1460
Melting Onset (Solidus), °C 1390
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
51
Thermal Expansion, µm/m-K 10
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
8.2 to 8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
2.0
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.3
1.6
Embodied Energy, MJ/kg 32
22
Embodied Water, L/kg 120
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
100 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 570
290 to 690
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 29
17 to 22
Strength to Weight: Bending, points 25
17 to 21
Thermal Diffusivity, mm2/s 4.1
14
Thermal Shock Resistance, points 29
14 to 18