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EN 1.4971 Stainless Steel vs. SAE-AISI D3 Steel

Both EN 1.4971 stainless steel and SAE-AISI D3 steel are iron alloys. They have 44% of their average alloy composition in common. There are 27 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 1.4971 stainless steel and the bottom bar is SAE-AISI D3 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
190
Elongation at Break, % 34
9.8 to 15
Fatigue Strength, MPa 270
310 to 940
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 81
74
Shear Strength, MPa 530
470 to 1220
Tensile Strength: Ultimate (UTS), MPa 800
770 to 2050
Tensile Strength: Yield (Proof), MPa 340
480 to 1550

Thermal Properties

Latent Heat of Fusion, J/g 300
270
Melting Completion (Liquidus), °C 1460
1430
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
12

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
3.2
Embodied Energy, MJ/kg 110
48
Embodied Water, L/kg 300
100

Common Calculations

PREN (Pitting Resistance) 38
13
Resilience: Ultimate (Unit Rupture Work), MJ/m3 220
97 to 180
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 26
28 to 74
Strength to Weight: Bending, points 23
24 to 47
Thermal Diffusivity, mm2/s 3.4
8.3
Thermal Shock Resistance, points 19
23 to 63

Alloy Composition

Carbon (C), % 0.080 to 0.16
2.0 to 2.4
Chromium (Cr), % 20 to 22.5
11 to 13.5
Cobalt (Co), % 18.5 to 21
0
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 24.3 to 37.1
80.3 to 87
Manganese (Mn), % 0 to 2.0
0 to 0.6
Molybdenum (Mo), % 2.5 to 3.5
0
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 to 1.0
Vanadium (V), % 0
0 to 1.0