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ASTM A225 Steel vs. EN 1.4031 Stainless Steel

Both ASTM A225 steel and EN 1.4031 stainless steel are iron alloys. There are 30 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 A225 steel and the bottom bar is EN 1.4031 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 21 to 23
11 to 13
Fatigue Strength, MPa 330 to 390
220 to 400
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
76
Shear Strength, MPa 390 to 520
400 to 540
Tensile Strength: Ultimate (UTS), MPa 620 to 830
670 to 900
Tensile Strength: Yield (Proof), MPa 460 to 550
390 to 730

Thermal Properties

Latent Heat of Fusion, J/g 250
280
Maximum Temperature: Mechanical, °C 400
770
Melting Completion (Liquidus), °C 1460
1440
Melting Onset (Solidus), °C 1420
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 52
30
Thermal Expansion, µm/m-K 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
3.1
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
3.7

Otherwise Unclassified Properties

Base Metal Price, % relative 2.3
7.0
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 1.8
1.9
Embodied Energy, MJ/kg 24 to 25
27
Embodied Water, L/kg 48
100

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120 to 170
77 to 94
Resilience: Unit (Modulus of Resilience), kJ/m3 580 to 820
380 to 1360
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 22 to 29
24 to 32
Strength to Weight: Bending, points 21 to 25
22 to 27
Thermal Diffusivity, mm2/s 14
8.1
Thermal Shock Resistance, points 18 to 24
23 to 32

Comparable Variants