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SAE-AISI 1026 Steel vs. AISI 321H Stainless Steel

Both SAE-AISI 1026 steel and AISI 321H stainless steel are iron alloys. They have 71% of their average alloy composition in common. There are 32 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 SAE-AISI 1026 steel and the bottom bar is AISI 321H stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140 to 160
190
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 17 to 27
40
Fatigue Strength, MPa 200 to 310
200
Poisson's Ratio 0.29
0.28
Reduction in Area, % 45 to 55
51
Shear Modulus, GPa 73
77
Shear Strength, MPa 320 to 340
400
Tensile Strength: Ultimate (UTS), MPa 500 to 550
580
Tensile Strength: Yield (Proof), MPa 270 to 470
230

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 400
940
Melting Completion (Liquidus), °C 1460
1430
Melting Onset (Solidus), °C 1420
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 52
15
Thermal Expansion, µm/m-K 12
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 8.0
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
16
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.4
3.2
Embodied Energy, MJ/kg 18
46
Embodied Water, L/kg 46
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 89 to 110
190
Resilience: Unit (Modulus of Resilience), kJ/m3 200 to 580
140
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 18 to 20
21
Strength to Weight: Bending, points 18 to 19
20
Thermal Diffusivity, mm2/s 14
4.0
Thermal Shock Resistance, points 16 to 18
12

Alloy Composition

Carbon (C), % 0.22 to 0.28
0.040 to 0.1
Chromium (Cr), % 0
17 to 19
Iron (Fe), % 98.7 to 99.18
65.4 to 74
Manganese (Mn), % 0.6 to 0.9
0 to 2.0
Nickel (Ni), % 0
9.0 to 12
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0
0 to 0.75
Sulfur (S), % 0 to 0.050
0 to 0.030
Titanium (Ti), % 0
0 to 0.7