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S40977 Stainless Steel vs. ASTM A225 Steel

Both S40977 stainless steel and ASTM A225 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 S40977 stainless steel and the bottom bar is ASTM A225 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
190 to 250
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 21
21 to 23
Fatigue Strength, MPa 200
330 to 390
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
73
Shear Strength, MPa 320
390 to 520
Tensile Strength: Ultimate (UTS), MPa 510
620 to 830
Tensile Strength: Yield (Proof), MPa 310
460 to 550

Thermal Properties

Latent Heat of Fusion, J/g 270
250
Maximum Temperature: Mechanical, °C 720
400
Melting Completion (Liquidus), °C 1440
1460
Melting Onset (Solidus), °C 1400
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 25
52
Thermal Expansion, µm/m-K 10
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 6.5
2.3
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.9
1.8
Embodied Energy, MJ/kg 27
24 to 25
Embodied Water, L/kg 97
48

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 92
120 to 170
Resilience: Unit (Modulus of Resilience), kJ/m3 250
580 to 820
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 18
22 to 29
Strength to Weight: Bending, points 18
21 to 25
Thermal Diffusivity, mm2/s 6.7
14
Thermal Shock Resistance, points 18
18 to 24