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S40977 Stainless Steel vs. SAE-AISI 1547 Steel

Both S40977 stainless steel and SAE-AISI 1547 steel are iron alloys. They have 87% of their average alloy composition in common. There are 31 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 S40977 stainless steel and the bottom bar is SAE-AISI 1547 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
200 to 220
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 21
11 to 17
Fatigue Strength, MPa 200
270 to 430
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
73
Shear Strength, MPa 320
440 to 480
Tensile Strength: Ultimate (UTS), MPa 510
740 to 800
Tensile Strength: Yield (Proof), MPa 310
400 to 690

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
51
Thermal Expansion, µm/m-K 10
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 6.5
1.9
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.9
1.4
Embodied Energy, MJ/kg 27
19
Embodied Water, L/kg 97
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 92
80 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 250
430 to 1280
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 18
26 to 28
Strength to Weight: Bending, points 18
23 to 24
Thermal Diffusivity, mm2/s 6.7
14
Thermal Shock Resistance, points 18
23 to 25

Alloy Composition

Carbon (C), % 0 to 0.030
0.43 to 0.51
Chromium (Cr), % 10.5 to 12.5
0
Iron (Fe), % 83.9 to 89.2
97.8 to 98.2
Manganese (Mn), % 0 to 1.5
1.4 to 1.7
Nickel (Ni), % 0.3 to 1.0
0
Nitrogen (N), % 0 to 0.030
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.015
0 to 0.050