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EN 1.4568 Stainless Steel vs. SAE-AISI D7 Steel

Both EN 1.4568 stainless steel and SAE-AISI D7 steel are iron alloys. They have 87% 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 1.4568 stainless steel and the bottom bar is SAE-AISI D7 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
73
Tensile Strength: Ultimate (UTS), MPa 830 to 1620
800 to 2120

Thermal Properties

Latent Heat of Fusion, J/g 280
270
Melting Completion (Liquidus), °C 1420
1440
Melting Onset (Solidus), °C 1380
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 16
27
Thermal Expansion, µm/m-K 13
11

Otherwise Unclassified Properties

Base Metal Price, % relative 13
10
Density, g/cm3 7.7
7.6
Embodied Carbon, kg CO2/kg material 2.8
11
Embodied Energy, MJ/kg 40
180
Embodied Water, L/kg 140
130

Common Calculations

PREN (Pitting Resistance) 17
16
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 30 to 58
29 to 78
Strength to Weight: Bending, points 25 to 40
25 to 48
Thermal Diffusivity, mm2/s 4.3
7.4
Thermal Shock Resistance, points 23 to 46
27 to 72

Alloy Composition

Aluminum (Al), % 0.7 to 1.5
0
Carbon (C), % 0 to 0.090
2.2 to 2.5
Chromium (Cr), % 16 to 18
11.5 to 13.5
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 70.9 to 76.8
76.6 to 81.9
Manganese (Mn), % 0 to 1.0
0 to 0.6
Molybdenum (Mo), % 0
0.7 to 1.2
Nickel (Ni), % 6.5 to 7.8
0 to 0.3
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 0.7
0 to 0.6
Sulfur (S), % 0 to 0.015
0 to 0.030
Vanadium (V), % 0
3.8 to 4.4