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SAE-AISI 1026 Steel vs. S44725 Stainless Steel

Both SAE-AISI 1026 steel and S44725 stainless steel are iron alloys. They have 71% 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 SAE-AISI 1026 steel and the bottom bar is S44725 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140 to 160
180
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 17 to 27
22
Fatigue Strength, MPa 200 to 310
210
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 73
81
Shear Strength, MPa 320 to 340
320
Tensile Strength: Ultimate (UTS), MPa 500 to 550
500
Tensile Strength: Yield (Proof), MPa 270 to 470
310

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 400
1100
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1420
1410
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 52
17
Thermal Expansion, µm/m-K 12
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 8.0
2.8

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
15
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 1.4
3.1
Embodied Energy, MJ/kg 18
44
Embodied Water, L/kg 46
170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 89 to 110
99
Resilience: Unit (Modulus of Resilience), kJ/m3 200 to 580
240
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 18 to 20
18
Strength to Weight: Bending, points 18 to 19
18
Thermal Diffusivity, mm2/s 14
4.6
Thermal Shock Resistance, points 16 to 18
16

Alloy Composition

Carbon (C), % 0.22 to 0.28
0 to 0.015
Chromium (Cr), % 0
25 to 28.5
Iron (Fe), % 98.7 to 99.18
67.6 to 73.5
Manganese (Mn), % 0.6 to 0.9
0 to 0.4
Molybdenum (Mo), % 0
1.5 to 2.5
Nickel (Ni), % 0
0 to 0.3
Niobium (Nb), % 0
0 to 0.26
Nitrogen (N), % 0
0 to 0.018
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0
0 to 0.040
Sulfur (S), % 0 to 0.050
0 to 0.020
Titanium (Ti), % 0
0 to 0.26