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S17400 Stainless Steel vs. SAE-AISI 1547 Steel

Both S17400 stainless steel and SAE-AISI 1547 steel are iron alloys. They have 75% of their average alloy composition in common. There are 32 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 S17400 stainless steel and the bottom bar is SAE-AISI 1547 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 280 to 440
200 to 220
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 11 to 21
11 to 17
Fatigue Strength, MPa 380 to 670
270 to 430
Poisson's Ratio 0.28
0.29
Reduction in Area, % 40 to 62
32 to 40
Shear Modulus, GPa 75
73
Shear Strength, MPa 570 to 830
440 to 480
Tensile Strength: Ultimate (UTS), MPa 910 to 1390
740 to 800
Tensile Strength: Yield (Proof), MPa 580 to 1250
400 to 690

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Maximum Temperature: Mechanical, °C 850
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 17
51
Thermal Expansion, µm/m-K 11
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 14
1.9
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.7
1.4
Embodied Energy, MJ/kg 39
19
Embodied Water, L/kg 130
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 160
80 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 880 to 4060
430 to 1280
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 32 to 49
26 to 28
Strength to Weight: Bending, points 27 to 35
23 to 24
Thermal Diffusivity, mm2/s 4.5
14
Thermal Shock Resistance, points 30 to 46
23 to 25

Alloy Composition

Carbon (C), % 0 to 0.070
0.43 to 0.51
Chromium (Cr), % 15 to 17
0
Copper (Cu), % 3.0 to 5.0
0
Iron (Fe), % 70.4 to 78.9
97.8 to 98.2
Manganese (Mn), % 0 to 1.0
1.4 to 1.7
Nickel (Ni), % 3.0 to 5.0
0
Niobium (Nb), % 0.15 to 0.45
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.030
0 to 0.050