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AISI 301 Stainless Steel vs. EN 1.7779 Steel

Both AISI 301 stainless steel and EN 1.7779 steel are iron alloys. They have 78% 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 AISI 301 stainless steel and the bottom bar is EN 1.7779 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190 to 440
240
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 7.4 to 46
16
Fatigue Strength, MPa 210 to 600
430
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Shear Strength, MPa 410 to 860
500
Tensile Strength: Ultimate (UTS), MPa 590 to 1460
810
Tensile Strength: Yield (Proof), MPa 230 to 1080
660

Thermal Properties

Latent Heat of Fusion, J/g 280
260
Maximum Temperature: Mechanical, °C 840
470
Melting Completion (Liquidus), °C 1420
1460
Melting Onset (Solidus), °C 1400
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 16
39
Thermal Expansion, µm/m-K 17
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
7.7
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
8.9

Otherwise Unclassified Properties

Base Metal Price, % relative 13
4.0
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.7
2.8
Embodied Energy, MJ/kg 39
41
Embodied Water, L/kg 130
64

Common Calculations

PREN (Pitting Resistance) 18
5.0
Resilience: Ultimate (Unit Rupture Work), MJ/m3 99 to 300
120
Resilience: Unit (Modulus of Resilience), kJ/m3 130 to 2970
1150
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 21 to 52
29
Strength to Weight: Bending, points 20 to 37
25
Thermal Diffusivity, mm2/s 4.2
11
Thermal Shock Resistance, points 12 to 31
23

Alloy Composition

Aluminum (Al), % 0
0 to 0.040
Carbon (C), % 0 to 0.15
0.17 to 0.23
Chromium (Cr), % 16 to 18
3.0 to 3.3
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 70.7 to 78
93.8 to 95.4
Manganese (Mn), % 0 to 2.0
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 to 0.1
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 0.030
0 to 0.010
Vanadium (V), % 0
0.45 to 0.55