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EN 1.3956 Stainless Steel vs. SAE-AISI P3 Steel

Both EN 1.3956 stainless steel and SAE-AISI P3 steel are iron alloys. They have 59% of their average alloy composition in common. There are 19 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is EN 1.3956 stainless steel and the bottom bar is SAE-AISI P3 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 79
73
Tensile Strength: Ultimate (UTS), MPa 650
410 to 1980

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Melting Completion (Liquidus), °C 1420
1460
Melting Onset (Solidus), °C 1380
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Expansion, µm/m-K 13
12

Otherwise Unclassified Properties

Base Metal Price, % relative 22
2.8
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 4.8
1.5
Embodied Energy, MJ/kg 68
20
Embodied Water, L/kg 180
50

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 23
15 to 70
Strength to Weight: Bending, points 21
16 to 44
Thermal Shock Resistance, points 18
14 to 65

Alloy Composition

Carbon (C), % 0 to 0.060
0 to 0.1
Chromium (Cr), % 20.5 to 23.5
0.4 to 0.75
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 51.9 to 62.1
96.3 to 98.4
Manganese (Mn), % 4.0 to 6.0
0.2 to 0.6
Molybdenum (Mo), % 1.5 to 3.0
0
Nickel (Ni), % 11.5 to 13.5
1.0 to 1.5
Niobium (Nb), % 0.1 to 0.3
0
Nitrogen (N), % 0.2 to 0.4
0
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.0
0 to 0.4
Sulfur (S), % 0 to 0.030
0 to 0.030
Vanadium (V), % 0.1 to 0.3
0