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AISI 310H Stainless Steel vs. SAE-AISI P20 Steel

Both AISI 310H stainless steel and SAE-AISI P20 steel are iron alloys. They have 55% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is AISI 310H stainless steel and the bottom bar is SAE-AISI P20 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 79
73
Tensile Strength: Ultimate (UTS), MPa 580
540 to 1050

Thermal Properties

Latent Heat of Fusion, J/g 300
260
Melting Completion (Liquidus), °C 1410
1460
Melting Onset (Solidus), °C 1360
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
45
Thermal Expansion, µm/m-K 16
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 25
2.8
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 4.3
1.6
Embodied Energy, MJ/kg 61
21
Embodied Water, L/kg 190
52

Common Calculations

PREN (Pitting Resistance) 25
2.6
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 21
19 to 37
Strength to Weight: Bending, points 20
19 to 29
Thermal Diffusivity, mm2/s 3.9
12
Thermal Shock Resistance, points 13
18 to 35

Alloy Composition

Carbon (C), % 0.040 to 0.1
0.28 to 0.4
Chromium (Cr), % 24 to 26
0.4 to 2.0
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 49.1 to 57
95.2 to 98.5
Manganese (Mn), % 0 to 2.0
0.35 to 0.71
Molybdenum (Mo), % 0
0.3 to 0.55
Nickel (Ni), % 19 to 22
0
Phosphorus (P), % 0 to 0.045
0 to 0.030
Silicon (Si), % 0 to 0.75
0.2 to 0.8
Sulfur (S), % 0 to 0.030
0 to 0.030