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EN 1.7779 Steel vs. N08800 Stainless Steel

Both EN 1.7779 steel and N08800 stainless steel are iron alloys. They have 49% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is EN 1.7779 steel and the bottom bar is N08800 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 16
4.5 to 34
Fatigue Strength, MPa 430
150 to 390
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
77
Shear Strength, MPa 500
340 to 580
Tensile Strength: Ultimate (UTS), MPa 810
500 to 1000
Tensile Strength: Yield (Proof), MPa 660
190 to 830

Thermal Properties

Latent Heat of Fusion, J/g 260
300
Maximum Temperature: Mechanical, °C 470
1100
Melting Completion (Liquidus), °C 1460
1390
Melting Onset (Solidus), °C 1420
1360
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 39
12
Thermal Expansion, µm/m-K 13
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.7
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 8.9
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 4.0
30
Density, g/cm3 7.8
8.0
Embodied Carbon, kg CO2/kg material 2.8
5.3
Embodied Energy, MJ/kg 41
76
Embodied Water, L/kg 64
200

Common Calculations

PREN (Pitting Resistance) 5.0
21
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
42 to 160
Resilience: Unit (Modulus of Resilience), kJ/m3 1150
96 to 1740
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 29
18 to 35
Strength to Weight: Bending, points 25
18 to 28
Thermal Diffusivity, mm2/s 11
3.0
Thermal Shock Resistance, points 23
13 to 25

Alloy Composition

Aluminum (Al), % 0 to 0.040
0.15 to 0.6
Carbon (C), % 0.17 to 0.23
0 to 0.1
Chromium (Cr), % 3.0 to 3.3
19 to 23
Copper (Cu), % 0 to 0.3
0 to 0.75
Iron (Fe), % 93.8 to 95.4
39.5 to 50.7
Manganese (Mn), % 0.3 to 0.5
0 to 1.5
Molybdenum (Mo), % 0.5 to 0.6
0
Nickel (Ni), % 0 to 0.3
30 to 35
Phosphorus (P), % 0 to 0.025
0 to 0.045
Silicon (Si), % 0.15 to 0.35
0 to 1.0
Sulfur (S), % 0 to 0.010
0 to 0.015
Titanium (Ti), % 0
0.15 to 0.6
Vanadium (V), % 0.45 to 0.55
0