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SAE-AISI S1 Steel vs. EN 1.3956 Stainless Steel

Both SAE-AISI S1 steel and EN 1.3956 stainless steel are iron alloys. They have 60% of their average alloy composition in common. There are 20 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 SAE-AISI S1 steel and the bottom bar is EN 1.3956 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
79
Tensile Strength: Ultimate (UTS), MPa 690 to 1840
650

Thermal Properties

Latent Heat of Fusion, J/g 260
300
Melting Completion (Liquidus), °C 1500
1420
Melting Onset (Solidus), °C 1450
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Expansion, µm/m-K 12
13

Otherwise Unclassified Properties

Base Metal Price, % relative 8.0
22
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 2.6
4.8
Embodied Energy, MJ/kg 37
68
Embodied Water, L/kg 56
180

Common Calculations

PREN (Pitting Resistance) 5.9
34
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 24 to 64
23
Strength to Weight: Bending, points 22 to 42
21
Thermal Shock Resistance, points 21 to 56
18

Alloy Composition

Carbon (C), % 0.4 to 0.55
0 to 0.060
Chromium (Cr), % 1.0 to 1.8
20.5 to 23.5
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 91.6 to 96.7
51.9 to 62.1
Manganese (Mn), % 0.1 to 0.4
4.0 to 6.0
Molybdenum (Mo), % 0 to 0.5
1.5 to 3.0
Nickel (Ni), % 0 to 0.3
11.5 to 13.5
Niobium (Nb), % 0
0.1 to 0.3
Nitrogen (N), % 0
0.2 to 0.4
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0.15 to 1.2
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 1.5 to 3.0
0
Vanadium (V), % 0.15 to 0.3
0.1 to 0.3