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EN 1.6773 Steel vs. EN 1.4509 Stainless Steel

Both EN 1.6773 steel and EN 1.4509 stainless steel are iron alloys. They have 82% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is EN 1.6773 steel and the bottom bar is EN 1.4509 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 340
180
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 11
21
Fatigue Strength, MPa 560
170
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
77
Shear Strength, MPa 670
330
Tensile Strength: Ultimate (UTS), MPa 1120
530
Tensile Strength: Yield (Proof), MPa 910
260

Thermal Properties

Latent Heat of Fusion, J/g 250
280
Maximum Temperature: Mechanical, °C 450
890
Melting Completion (Liquidus), °C 1460
1440
Melting Onset (Solidus), °C 1420
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 46
25
Thermal Expansion, µm/m-K 13
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.1
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 9.2
3.4

Otherwise Unclassified Properties

Base Metal Price, % relative 5.0
13
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 1.9
2.8
Embodied Energy, MJ/kg 26
41
Embodied Water, L/kg 61
120

Common Calculations

PREN (Pitting Resistance) 3.0
18
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
90
Resilience: Unit (Modulus of Resilience), kJ/m3 2210
180
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 40
19
Strength to Weight: Bending, points 30
19
Thermal Diffusivity, mm2/s 12
6.8
Thermal Shock Resistance, points 33
19

Alloy Composition

Carbon (C), % 0.32 to 0.39
0 to 0.030
Chromium (Cr), % 1.6 to 2.0
17.5 to 18.5
Iron (Fe), % 92 to 93.9
77.8 to 82.1
Manganese (Mn), % 0.3 to 0.6
0 to 1.0
Molybdenum (Mo), % 0.25 to 0.45
0
Nickel (Ni), % 3.6 to 4.1
0
Niobium (Nb), % 0
0.3 to 1.0
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0 to 0.4
0 to 1.0
Sulfur (S), % 0 to 0.025
0 to 0.015
Titanium (Ti), % 0
0.1 to 0.6