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EN 1.4938 Stainless Steel vs. SAE-AISI D5 Steel

Both EN 1.4938 stainless steel and SAE-AISI D5 steel are iron alloys. They have a very high 95% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is EN 1.4938 stainless steel and the bottom bar is SAE-AISI D5 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 16 to 17
5.4 to 14
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
75
Shear Strength, MPa 540 to 630
470 to 1180
Tensile Strength: Ultimate (UTS), MPa 870 to 1030
770 to 2030

Thermal Properties

Latent Heat of Fusion, J/g 270
270
Melting Completion (Liquidus), °C 1460
1430
Melting Onset (Solidus), °C 1420
1390
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 30
27
Thermal Expansion, µm/m-K 11
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
4.2
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
4.9

Otherwise Unclassified Properties

Base Metal Price, % relative 10
13
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 3.3
3.5
Embodied Energy, MJ/kg 47
51
Embodied Water, L/kg 110
120

Common Calculations

PREN (Pitting Resistance) 18
15
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 31 to 37
28 to 73
Strength to Weight: Bending, points 26 to 29
24 to 46
Thermal Diffusivity, mm2/s 8.1
7.4
Thermal Shock Resistance, points 30 to 35
26 to 67

Alloy Composition

Carbon (C), % 0.080 to 0.15
1.4 to 1.6
Chromium (Cr), % 11 to 12.5
11 to 13
Cobalt (Co), % 0
2.5 to 3.5
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 80.5 to 84.8
77.9 to 84.4
Manganese (Mn), % 0.4 to 0.9
0 to 0.6
Molybdenum (Mo), % 1.5 to 2.0
0.7 to 1.2
Nickel (Ni), % 2.0 to 3.0
0 to 0.3
Nitrogen (N), % 0.020 to 0.040
0
Phosphorus (P), % 0 to 0.025
0 to 0.030
Silicon (Si), % 0 to 0.5
0 to 0.6
Sulfur (S), % 0 to 0.015
0 to 0.030
Vanadium (V), % 0.25 to 0.4
0 to 1.0

Comparable Variants