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SAE-AISI 1086 Steel vs. AISI 348H Stainless Steel

Both SAE-AISI 1086 steel and AISI 348H stainless steel are iron alloys. They have 69% 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 1086 steel and the bottom bar is AISI 348H stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220 to 260
180
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 11
40
Fatigue Strength, MPa 300 to 360
200
Poisson's Ratio 0.29
0.28
Reduction in Area, % 28 to 45
51
Shear Modulus, GPa 72
77
Shear Strength, MPa 450 to 520
400
Tensile Strength: Ultimate (UTS), MPa 760 to 870
580
Tensile Strength: Yield (Proof), MPa 480 to 580
230

Thermal Properties

Latent Heat of Fusion, J/g 240
290
Maximum Temperature: Mechanical, °C 400
940
Melting Completion (Liquidus), °C 1460
1430
Melting Onset (Solidus), °C 1410
1390
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 50
15
Thermal Expansion, µm/m-K 11
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
20
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.4
3.9
Embodied Energy, MJ/kg 19
56
Embodied Water, L/kg 45
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 79 to 84
190
Resilience: Unit (Modulus of Resilience), kJ/m3 610 to 890
140
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 27 to 31
21
Strength to Weight: Bending, points 24 to 26
20
Thermal Diffusivity, mm2/s 14
4.1
Thermal Shock Resistance, points 26 to 30
13

Alloy Composition

Carbon (C), % 0.8 to 0.93
0.040 to 0.1
Chromium (Cr), % 0
17 to 19
Cobalt (Co), % 0
0 to 0.2
Iron (Fe), % 98.5 to 98.9
63.8 to 73.6
Manganese (Mn), % 0.3 to 0.5
0 to 2.0
Nickel (Ni), % 0
9.0 to 13
Niobium (Nb), % 0
0.32 to 1.0
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
Tantalum (Ta), % 0
0 to 0.1