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EN 1.3975 Stainless Steel vs. SAE-AISI 4047 Steel

Both EN 1.3975 stainless steel and SAE-AISI 4047 steel are iron alloys. They have 63% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is EN 1.3975 stainless steel and the bottom bar is SAE-AISI 4047 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
170
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 27
23
Fatigue Strength, MPa 230
220
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
73
Tensile Strength: Ultimate (UTS), MPa 660
580
Tensile Strength: Yield (Proof), MPa 320
310

Thermal Properties

Latent Heat of Fusion, J/g 340
250
Maximum Temperature: Mechanical, °C 910
400
Melting Completion (Liquidus), °C 1360
1460
Melting Onset (Solidus), °C 1320
1420
Specific Heat Capacity, J/kg-K 500
470
Thermal Expansion, µm/m-K 16
12

Otherwise Unclassified Properties

Base Metal Price, % relative 15
2.1
Density, g/cm3 7.5
7.8
Embodied Carbon, kg CO2/kg material 3.3
1.5
Embodied Energy, MJ/kg 47
19
Embodied Water, L/kg 150
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 150
110
Resilience: Unit (Modulus of Resilience), kJ/m3 270
260
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 26
24
Strength to Weight: Axial, points 24
20
Strength to Weight: Bending, points 22
20
Thermal Shock Resistance, points 15
18

Alloy Composition

Carbon (C), % 0 to 0.050
0.45 to 0.5
Chromium (Cr), % 16 to 18
0
Iron (Fe), % 58.2 to 65.4
97.9 to 98.5
Manganese (Mn), % 7.0 to 9.0
0.7 to 0.9
Molybdenum (Mo), % 0 to 1.0
0.2 to 0.3
Nickel (Ni), % 8.0 to 9.0
0
Nitrogen (N), % 0.080 to 0.18
0
Phosphorus (P), % 0 to 0.045
0 to 0.035
Silicon (Si), % 3.5 to 4.5
0.15 to 0.35
Sulfur (S), % 0 to 0.030
0 to 0.040