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EN 1.4901 Stainless Steel vs. SAE-AISI D4 Steel

Both EN 1.4901 stainless steel and SAE-AISI D4 steel are iron alloys. They have a moderately high 94% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is EN 1.4901 stainless steel and the bottom bar is SAE-AISI D4 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 19
8.4 to 15
Fatigue Strength, MPa 310
310 to 920
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
74
Shear Strength, MPa 460
460 to 1210
Tensile Strength: Ultimate (UTS), MPa 740
760 to 2060
Tensile Strength: Yield (Proof), MPa 490
470 to 1540

Thermal Properties

Latent Heat of Fusion, J/g 260
270
Melting Completion (Liquidus), °C 1490
1430
Melting Onset (Solidus), °C 1450
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 26
31
Thermal Expansion, µm/m-K 12
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.2
4.2
Electrical Conductivity: Equal Weight (Specific), % IACS 9.3
5.0

Otherwise Unclassified Properties

Base Metal Price, % relative 11
8.0
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 2.8
3.3
Embodied Energy, MJ/kg 40
49
Embodied Water, L/kg 89
100

Common Calculations

PREN (Pitting Resistance) 14
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 6.9
8.3
Thermal Shock Resistance, points 23
23 to 63

Alloy Composition

Aluminum (Al), % 0 to 0.020
0
Boron (B), % 0.0010 to 0.0060
0
Carbon (C), % 0.070 to 0.13
2.1 to 2.4
Chromium (Cr), % 8.5 to 9.5
11 to 13
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 85.8 to 89.1
80.6 to 86.3
Manganese (Mn), % 0.3 to 0.6
0 to 0.6
Molybdenum (Mo), % 0.3 to 0.6
0.7 to 1.2
Nickel (Ni), % 0 to 0.4
0 to 0.3
Niobium (Nb), % 0.040 to 0.090
0
Nitrogen (N), % 0.030 to 0.070
0
Phosphorus (P), % 0 to 0.020
0 to 0.030
Silicon (Si), % 0 to 0.5
0 to 0.6
Sulfur (S), % 0 to 0.010
0 to 0.030
Titanium (Ti), % 0 to 0.010
0
Tungsten (W), % 1.5 to 2.0
0
Vanadium (V), % 0.15 to 0.25
0 to 1.0
Zirconium (Zr), % 0 to 0.010
0