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EN 1.4371 Stainless Steel vs. EN 1.6773 Steel

Both EN 1.4371 stainless steel and EN 1.6773 steel are iron alloys. They have 77% 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 1.4371 stainless steel and the bottom bar is EN 1.6773 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220 to 230
340
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 45 to 51
11
Fatigue Strength, MPa 290 to 340
560
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Shear Strength, MPa 520 to 540
670
Tensile Strength: Ultimate (UTS), MPa 740 to 750
1120
Tensile Strength: Yield (Proof), MPa 320 to 340
910

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Maximum Temperature: Mechanical, °C 880
450
Melting Completion (Liquidus), °C 1410
1460
Melting Onset (Solidus), °C 1370
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
46
Thermal Expansion, µm/m-K 17
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.5
8.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
9.2

Otherwise Unclassified Properties

Base Metal Price, % relative 12
5.0
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 2.6
1.9
Embodied Energy, MJ/kg 38
26
Embodied Water, L/kg 140
61

Common Calculations

PREN (Pitting Resistance) 20
3.0
Resilience: Ultimate (Unit Rupture Work), MJ/m3 270 to 310
110
Resilience: Unit (Modulus of Resilience), kJ/m3 250 to 300
2210
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 27
40
Strength to Weight: Bending, points 24
30
Thermal Diffusivity, mm2/s 4.0
12
Thermal Shock Resistance, points 16
33

Alloy Composition

Carbon (C), % 0 to 0.030
0.32 to 0.39
Chromium (Cr), % 16 to 17.5
1.6 to 2.0
Copper (Cu), % 0 to 1.0
0
Iron (Fe), % 66.7 to 74.4
92 to 93.9
Manganese (Mn), % 6.0 to 8.0
0.3 to 0.6
Molybdenum (Mo), % 0
0.25 to 0.45
Nickel (Ni), % 3.5 to 5.5
3.6 to 4.1
Nitrogen (N), % 0.15 to 0.25
0
Phosphorus (P), % 0 to 0.045
0 to 0.030
Silicon (Si), % 0 to 1.0
0 to 0.4
Sulfur (S), % 0 to 0.015
0 to 0.025