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EN 1.4971 Stainless Steel vs. SAE-AISI D2 Steel

Both EN 1.4971 stainless steel and SAE-AISI D2 steel are iron alloys. They have 45% of their average alloy composition in common. There are 28 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 1.4971 stainless steel and the bottom bar is SAE-AISI D2 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
190
Elongation at Break, % 34
5.0 to 16
Fatigue Strength, MPa 270
310 to 860
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 81
75
Shear Strength, MPa 530
460 to 1160
Tensile Strength: Ultimate (UTS), MPa 800
760 to 2000
Tensile Strength: Yield (Proof), MPa 340
470 to 1510

Thermal Properties

Latent Heat of Fusion, J/g 300
270
Melting Completion (Liquidus), °C 1460
1440
Melting Onset (Solidus), °C 1410
1390
Specific Heat Capacity, J/kg-K 450
480
Thermal Conductivity, W/m-K 13
31
Thermal Expansion, µm/m-K 15
11

Otherwise Unclassified Properties

Base Metal Price, % relative 70
8.0
Density, g/cm3 8.4
7.7
Embodied Carbon, kg CO2/kg material 7.6
3.4
Embodied Energy, MJ/kg 110
50
Embodied Water, L/kg 300
100

Common Calculations

PREN (Pitting Resistance) 38
15
Resilience: Ultimate (Unit Rupture Work), MJ/m3 220
92 to 100
Resilience: Unit (Modulus of Resilience), kJ/m3 280
570 to 5940
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 26
27 to 72
Strength to Weight: Bending, points 23
24 to 46
Thermal Diffusivity, mm2/s 3.4
8.3
Thermal Shock Resistance, points 19
25 to 67

Alloy Composition

Carbon (C), % 0.080 to 0.16
1.4 to 1.6
Chromium (Cr), % 20 to 22.5
11 to 13
Cobalt (Co), % 18.5 to 21
0
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 24.3 to 37.1
81.3 to 86.9
Manganese (Mn), % 0 to 2.0
0 to 0.6
Molybdenum (Mo), % 2.5 to 3.5
0.7 to 1.2
Nickel (Ni), % 19 to 21
0 to 0.3
Niobium (Nb), % 0.75 to 1.3
0
Nitrogen (N), % 0.1 to 0.2
0
Phosphorus (P), % 0 to 0.035
0 to 0.030
Silicon (Si), % 0 to 1.0
0 to 0.6
Sulfur (S), % 0 to 0.015
0 to 0.030
Tungsten (W), % 2.0 to 3.0
0
Vanadium (V), % 0
0 to 1.1