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EN 1.4986 Stainless Steel vs. SAE-AISI D4 Steel

Both EN 1.4986 stainless steel and SAE-AISI D4 steel are iron alloys. They have 77% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is EN 1.4986 stainless steel and the bottom bar is SAE-AISI D4 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 18
8.4 to 15
Fatigue Strength, MPa 350
310 to 920
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
74
Shear Strength, MPa 460
460 to 1210
Tensile Strength: Ultimate (UTS), MPa 750
760 to 2060
Tensile Strength: Yield (Proof), MPa 560
470 to 1540

Thermal Properties

Latent Heat of Fusion, J/g 290
270
Melting Completion (Liquidus), °C 1450
1430
Melting Onset (Solidus), °C 1400
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 15
31
Thermal Expansion, µm/m-K 17
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
4.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
5.0

Otherwise Unclassified Properties

Base Metal Price, % relative 25
8.0
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 4.8
3.3
Embodied Energy, MJ/kg 67
49
Embodied Water, L/kg 150
100

Common Calculations

PREN (Pitting Resistance) 22
15
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
100 to 160
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 26
27 to 75
Strength to Weight: Bending, points 23
24 to 47
Thermal Diffusivity, mm2/s 4.0
8.3
Thermal Shock Resistance, points 16
23 to 63

Alloy Composition

Boron (B), % 0.050 to 0.1
0
Carbon (C), % 0.040 to 0.1
2.1 to 2.4
Chromium (Cr), % 15.5 to 17.5
11 to 13
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 59.4 to 66.6
80.6 to 86.3
Manganese (Mn), % 0 to 1.5
0 to 0.6
Molybdenum (Mo), % 1.6 to 2.0
0.7 to 1.2
Nickel (Ni), % 15.5 to 17.5
0 to 0.3
Niobium (Nb), % 0.4 to 1.2
0
Phosphorus (P), % 0 to 0.045
0 to 0.030
Silicon (Si), % 0.3 to 0.6
0 to 0.6
Sulfur (S), % 0 to 0.030
0 to 0.030
Vanadium (V), % 0
0 to 1.0