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EN 1.3956 Stainless Steel vs. SAE-AISI 1049 Steel

Both EN 1.3956 stainless steel and SAE-AISI 1049 steel are iron alloys. They have 58% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (9, 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 1049 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 27
11 to 17
Fatigue Strength, MPa 240
250 to 400
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 79
72
Tensile Strength: Ultimate (UTS), MPa 650
680 to 750
Tensile Strength: Yield (Proof), MPa 330
370 to 640

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Maximum Temperature: Mechanical, °C 1080
400
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
1.8
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 4.8
1.4
Embodied Energy, MJ/kg 68
18
Embodied Water, L/kg 180
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 150
75 to 99
Resilience: Unit (Modulus of Resilience), kJ/m3 270
370 to 1090
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 23
24 to 27
Strength to Weight: Bending, points 21
22 to 23
Thermal Shock Resistance, points 18
22 to 24

Alloy Composition

Carbon (C), % 0 to 0.060
0.46 to 0.53
Chromium (Cr), % 20.5 to 23.5
0
Iron (Fe), % 51.9 to 62.1
98.5 to 98.9
Manganese (Mn), % 4.0 to 6.0
0.6 to 0.9
Molybdenum (Mo), % 1.5 to 3.0
0
Nickel (Ni), % 11.5 to 13.5
0
Niobium (Nb), % 0.1 to 0.3
0
Nitrogen (N), % 0.2 to 0.4
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.030
0 to 0.050
Vanadium (V), % 0.1 to 0.3
0