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EN 1.6773 Steel vs. EN 1.3956 Stainless Steel

Both EN 1.6773 steel and EN 1.3956 stainless steel are iron alloys. They have 64% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (8, 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 1.3956 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 11
27
Fatigue Strength, MPa 560
240
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
79
Tensile Strength: Ultimate (UTS), MPa 1120
650
Tensile Strength: Yield (Proof), MPa 910
330

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Maximum Temperature: Mechanical, °C 450
1080
Melting Completion (Liquidus), °C 1460
1420
Melting Onset (Solidus), °C 1420
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Expansion, µm/m-K 13
13

Otherwise Unclassified Properties

Base Metal Price, % relative 5.0
22
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.9
4.8
Embodied Energy, MJ/kg 26
68
Embodied Water, L/kg 61
180

Common Calculations

PREN (Pitting Resistance) 3.0
34
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
150
Resilience: Unit (Modulus of Resilience), kJ/m3 2210
270
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 40
23
Strength to Weight: Bending, points 30
21
Thermal Shock Resistance, points 33
18

Alloy Composition

Carbon (C), % 0.32 to 0.39
0 to 0.060
Chromium (Cr), % 1.6 to 2.0
20.5 to 23.5
Iron (Fe), % 92 to 93.9
51.9 to 62.1
Manganese (Mn), % 0.3 to 0.6
4.0 to 6.0
Molybdenum (Mo), % 0.25 to 0.45
1.5 to 3.0
Nickel (Ni), % 3.6 to 4.1
11.5 to 13.5
Niobium (Nb), % 0
0.1 to 0.3
Nitrogen (N), % 0
0.2 to 0.4
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 0.030
Vanadium (V), % 0
0.1 to 0.3