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EN 1.4807 Stainless Steel vs. SAE-AISI A7 Steel

Both EN 1.4807 stainless steel and SAE-AISI A7 steel are iron alloys. They have 49% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is EN 1.4807 stainless steel and the bottom bar is SAE-AISI A7 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 75
72
Tensile Strength: Ultimate (UTS), MPa 480
800 to 2150

Thermal Properties

Latent Heat of Fusion, J/g 320
260
Melting Completion (Liquidus), °C 1390
1470
Melting Onset (Solidus), °C 1350
1430
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 12
37
Thermal Expansion, µm/m-K 15
12

Otherwise Unclassified Properties

Base Metal Price, % relative 39
10
Density, g/cm3 8.0
7.7
Embodied Carbon, kg CO2/kg material 6.8
13
Embodied Energy, MJ/kg 97
200
Embodied Water, L/kg 190
100

Common Calculations

PREN (Pitting Resistance) 19
11
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 17
29 to 77
Strength to Weight: Bending, points 17
25 to 48
Thermal Diffusivity, mm2/s 3.2
10
Thermal Shock Resistance, points 12
27 to 72

Alloy Composition

Carbon (C), % 0.3 to 0.5
2.0 to 2.9
Chromium (Cr), % 17 to 20
5.0 to 5.8
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 36.6 to 46.7
81.4 to 87.7
Manganese (Mn), % 0 to 2.0
0 to 0.8
Molybdenum (Mo), % 0 to 0.5
0.9 to 1.4
Nickel (Ni), % 34 to 36
0 to 0.3
Niobium (Nb), % 1.0 to 1.8
0
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 1.0 to 2.5
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 0
0.5 to 1.5
Vanadium (V), % 0
3.9 to 5.2