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EN 1.4872 Stainless Steel vs. EN 1.7779 Steel

Both EN 1.4872 stainless steel and EN 1.7779 steel are iron alloys. They have 62% 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 1.4872 stainless steel and the bottom bar is EN 1.7779 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 270
240
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 28
16
Fatigue Strength, MPa 410
430
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 79
73
Shear Strength, MPa 620
500
Tensile Strength: Ultimate (UTS), MPa 950
810
Tensile Strength: Yield (Proof), MPa 560
660

Thermal Properties

Latent Heat of Fusion, J/g 300
260
Maximum Temperature: Mechanical, °C 1150
470
Melting Completion (Liquidus), °C 1390
1460
Melting Onset (Solidus), °C 1340
1420
Specific Heat Capacity, J/kg-K 490
470
Thermal Conductivity, W/m-K 15
39
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
7.7
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
8.9

Otherwise Unclassified Properties

Base Metal Price, % relative 17
4.0
Density, g/cm3 7.6
7.8
Embodied Carbon, kg CO2/kg material 3.3
2.8
Embodied Energy, MJ/kg 47
41
Embodied Water, L/kg 180
64

Common Calculations

PREN (Pitting Resistance) 30
5.0
Resilience: Ultimate (Unit Rupture Work), MJ/m3 230
120
Resilience: Unit (Modulus of Resilience), kJ/m3 780
1150
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 26
24
Strength to Weight: Axial, points 35
29
Strength to Weight: Bending, points 28
25
Thermal Diffusivity, mm2/s 3.9
11
Thermal Shock Resistance, points 21
23

Alloy Composition

Aluminum (Al), % 0
0 to 0.040
Carbon (C), % 0.2 to 0.3
0.17 to 0.23
Chromium (Cr), % 24 to 26
3.0 to 3.3
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 54.2 to 61.6
93.8 to 95.4
Manganese (Mn), % 8.0 to 10
0.3 to 0.5
Molybdenum (Mo), % 0
0.5 to 0.6
Nickel (Ni), % 6.0 to 8.0
0 to 0.3
Nitrogen (N), % 0.2 to 0.4
0
Phosphorus (P), % 0 to 0.045
0 to 0.025
Silicon (Si), % 0 to 1.0
0.15 to 0.35
Sulfur (S), % 0 to 0.015
0 to 0.010
Vanadium (V), % 0
0.45 to 0.55