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EN 1.4901 Stainless Steel vs. ASTM A225 Steel

Both EN 1.4901 stainless steel and ASTM A225 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 EN 1.4901 stainless steel and the bottom bar is ASTM A225 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 19
21 to 23
Fatigue Strength, MPa 310
330 to 390
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
73
Shear Strength, MPa 460
390 to 520
Tensile Strength: Ultimate (UTS), MPa 740
620 to 830
Tensile Strength: Yield (Proof), MPa 490
460 to 550

Thermal Properties

Latent Heat of Fusion, J/g 260
250
Maximum Temperature: Mechanical, °C 650
400
Melting Completion (Liquidus), °C 1490
1460
Melting Onset (Solidus), °C 1450
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 26
52
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.2
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 9.3
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 11
2.3
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 2.8
1.8
Embodied Energy, MJ/kg 40
24 to 25
Embodied Water, L/kg 89
48

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
120 to 170
Resilience: Unit (Modulus of Resilience), kJ/m3 620
580 to 820
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 26
22 to 29
Strength to Weight: Bending, points 23
21 to 25
Thermal Diffusivity, mm2/s 6.9
14
Thermal Shock Resistance, points 23
18 to 24