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EN 1.4477 Stainless Steel vs. SAE-AISI D4 Steel

Both EN 1.4477 stainless steel and SAE-AISI D4 steel are iron alloys. They have 74% 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 1.4477 stainless steel and the bottom bar is SAE-AISI D4 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
190
Elongation at Break, % 22 to 23
8.4 to 15
Fatigue Strength, MPa 420 to 490
310 to 920
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 81
74
Shear Strength, MPa 550 to 580
460 to 1210
Tensile Strength: Ultimate (UTS), MPa 880 to 930
760 to 2060
Tensile Strength: Yield (Proof), MPa 620 to 730
470 to 1540

Thermal Properties

Latent Heat of Fusion, J/g 300
270
Melting Completion (Liquidus), °C 1430
1430
Melting Onset (Solidus), °C 1380
1380
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 13
31
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
4.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
5.0

Otherwise Unclassified Properties

Base Metal Price, % relative 20
8.0
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 3.7
3.3
Embodied Energy, MJ/kg 52
49
Embodied Water, L/kg 190
100

Common Calculations

PREN (Pitting Resistance) 41
15
Resilience: Ultimate (Unit Rupture Work), MJ/m3 180 to 190
100 to 160
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 31 to 33
27 to 75
Strength to Weight: Bending, points 26 to 27
24 to 47
Thermal Diffusivity, mm2/s 3.5
8.3
Thermal Shock Resistance, points 23 to 25
23 to 63

Alloy Composition

Carbon (C), % 0 to 0.030
2.1 to 2.4
Chromium (Cr), % 28 to 30
11 to 13
Copper (Cu), % 0 to 0.8
0 to 0.25
Iron (Fe), % 56.6 to 63.6
80.6 to 86.3
Manganese (Mn), % 0.8 to 1.5
0 to 0.6
Molybdenum (Mo), % 1.5 to 2.6
0.7 to 1.2
Nickel (Ni), % 5.8 to 7.5
0 to 0.3
Nitrogen (N), % 0.3 to 0.4
0
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0 to 0.5
0 to 0.6
Sulfur (S), % 0 to 0.015
0 to 0.030
Vanadium (V), % 0
0 to 1.0