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EN 1.4981 Stainless Steel vs. SAE-AISI D2 Steel

Both EN 1.4981 stainless steel and SAE-AISI D2 steel are iron alloys. They have 77% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is EN 1.4981 stainless steel and the bottom bar is SAE-AISI D2 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 39
5.0 to 16
Fatigue Strength, MPa 210
310 to 860
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
75
Shear Strength, MPa 420
460 to 1160
Tensile Strength: Ultimate (UTS), MPa 610
760 to 2000
Tensile Strength: Yield (Proof), MPa 240
470 to 1510

Thermal Properties

Latent Heat of Fusion, J/g 290
270
Melting Completion (Liquidus), °C 1440
1440
Melting Onset (Solidus), °C 1400
1390
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 16
31
Thermal Expansion, µm/m-K 16
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
4.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
5.1

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
3.4
Embodied Energy, MJ/kg 67
50
Embodied Water, L/kg 150
100

Common Calculations

PREN (Pitting Resistance) 22
15
Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
92 to 100
Resilience: Unit (Modulus of Resilience), kJ/m3 150
570 to 5940
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 21
27 to 72
Strength to Weight: Bending, points 20
24 to 46
Thermal Diffusivity, mm2/s 4.3
8.3
Thermal Shock Resistance, points 14
25 to 67

Alloy Composition

Carbon (C), % 0.040 to 0.1
1.4 to 1.6
Chromium (Cr), % 15.5 to 17.5
11 to 13
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 59.6 to 66.7
81.3 to 86.9
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 0.035
0 to 0.030
Silicon (Si), % 0.3 to 0.6
0 to 0.6
Sulfur (S), % 0 to 0.015
0 to 0.030
Vanadium (V), % 0
0 to 1.1