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ASTM A225 Steel vs. S44735 Stainless Steel

Both ASTM A225 steel and S44735 stainless steel are iron alloys. There are 27 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is ASTM A225 steel and the bottom bar is S44735 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190 to 250
220
Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 21 to 23
21
Fatigue Strength, MPa 330 to 390
300
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 73
82
Shear Strength, MPa 390 to 520
390
Tensile Strength: Ultimate (UTS), MPa 620 to 830
630
Tensile Strength: Yield (Proof), MPa 460 to 550
460

Thermal Properties

Latent Heat of Fusion, J/g 250
310
Maximum Temperature: Mechanical, °C 400
1100
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 470
480
Thermal Expansion, µm/m-K 13
11

Otherwise Unclassified Properties

Base Metal Price, % relative 2.3
21
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 1.8
4.4
Embodied Energy, MJ/kg 24 to 25
61
Embodied Water, L/kg 48
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120 to 170
120
Resilience: Unit (Modulus of Resilience), kJ/m3 580 to 820
520
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 24
26
Strength to Weight: Axial, points 22 to 29
23
Strength to Weight: Bending, points 21 to 25
21
Thermal Shock Resistance, points 18 to 24
20