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ASTM A225 Steel vs. S44535 Stainless Steel

Both ASTM A225 steel and S44535 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 A225 steel and the bottom bar is S44535 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190 to 250
170
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 21 to 23
28
Fatigue Strength, MPa 330 to 390
210
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 73
78
Shear Strength, MPa 390 to 520
290
Tensile Strength: Ultimate (UTS), MPa 620 to 830
450
Tensile Strength: Yield (Proof), MPa 460 to 550
290

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 400
1000
Melting Completion (Liquidus), °C 1460
1430
Melting Onset (Solidus), °C 1420
1390
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 52
21
Thermal Expansion, µm/m-K 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
2.6
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
3.1

Otherwise Unclassified Properties

Base Metal Price, % relative 2.3
11
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 1.8
2.4
Embodied Energy, MJ/kg 24 to 25
34
Embodied Water, L/kg 48
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120 to 170
110
Resilience: Unit (Modulus of Resilience), kJ/m3 580 to 820
200
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 22 to 29
16
Strength to Weight: Bending, points 21 to 25
17
Thermal Diffusivity, mm2/s 14
5.6
Thermal Shock Resistance, points 18 to 24
15