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EN 1.7779 Steel vs. AISI 310 Stainless Steel

Both EN 1.7779 steel and AISI 310 stainless steel are iron alloys. They have 57% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is EN 1.7779 steel and the bottom bar is AISI 310 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 240
180 to 220
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 16
34 to 45
Fatigue Strength, MPa 430
240 to 280
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 73
78
Shear Strength, MPa 500
420 to 470
Tensile Strength: Ultimate (UTS), MPa 810
600 to 710
Tensile Strength: Yield (Proof), MPa 660
260 to 350

Thermal Properties

Latent Heat of Fusion, J/g 260
310
Maximum Temperature: Mechanical, °C 470
1040
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1420
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 39
15
Thermal Expansion, µm/m-K 13
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.7
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.9
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 4.0
25
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.8
4.3
Embodied Energy, MJ/kg 41
61
Embodied Water, L/kg 64
190

Common Calculations

PREN (Pitting Resistance) 5.0
25
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
200 to 220
Resilience: Unit (Modulus of Resilience), kJ/m3 1150
170 to 310
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 29
21 to 25
Strength to Weight: Bending, points 25
20 to 22
Thermal Diffusivity, mm2/s 11
3.9
Thermal Shock Resistance, points 23
14 to 17

Alloy Composition

Aluminum (Al), % 0 to 0.040
0
Carbon (C), % 0.17 to 0.23
0 to 0.25
Chromium (Cr), % 3.0 to 3.3
24 to 26
Copper (Cu), % 0 to 0.3
0
Iron (Fe), % 93.8 to 95.4
48.2 to 57
Manganese (Mn), % 0.3 to 0.5
0 to 2.0
Molybdenum (Mo), % 0.5 to 0.6
0
Nickel (Ni), % 0 to 0.3
19 to 22
Phosphorus (P), % 0 to 0.025
0 to 0.045
Silicon (Si), % 0.15 to 0.35
0 to 1.5
Sulfur (S), % 0 to 0.010
0 to 0.030
Vanadium (V), % 0.45 to 0.55
0