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EN 1.6771 Steel vs. EN 1.4035 Stainless Steel

Both EN 1.6771 steel and EN 1.4035 stainless steel are iron alloys. They have 87% of their average alloy composition in common. There are 31 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 1.6771 steel and the bottom bar is EN 1.4035 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 280 to 350
220
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 8.0 to 8.7
18
Fatigue Strength, MPa 440 to 680
250
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
76
Tensile Strength: Ultimate (UTS), MPa 930 to 1180
690
Tensile Strength: Yield (Proof), MPa 740 to 1140
400

Thermal Properties

Latent Heat of Fusion, J/g 250
270
Maximum Temperature: Mechanical, °C 440
760
Melting Completion (Liquidus), °C 1460
1430
Melting Onset (Solidus), °C 1420
1390
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 46
29
Thermal Expansion, µm/m-K 13
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.0
3.0
Electrical Conductivity: Equal Weight (Specific), % IACS 9.2
3.5

Otherwise Unclassified Properties

Base Metal Price, % relative 5.0
7.0
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 1.9
2.0
Embodied Energy, MJ/kg 25
27
Embodied Water, L/kg 58
100

Common Calculations

PREN (Pitting Resistance) 2.5
13
Resilience: Ultimate (Unit Rupture Work), MJ/m3 75 to 93
110
Resilience: Unit (Modulus of Resilience), kJ/m3 1460 to 3450
420
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 33 to 41
25
Strength to Weight: Bending, points 27 to 31
22
Thermal Diffusivity, mm2/s 13
7.8
Thermal Shock Resistance, points 27 to 35
25

Alloy Composition

Carbon (C), % 0.27 to 0.33
0.43 to 0.5
Chromium (Cr), % 0.8 to 1.2
12.5 to 14
Iron (Fe), % 92.2 to 95
82.1 to 86.9
Manganese (Mn), % 0.6 to 1.0
0 to 2.0
Molybdenum (Mo), % 0.3 to 0.6
0
Nickel (Ni), % 3.0 to 4.0
0
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0 to 0.6
0 to 1.0
Sulfur (S), % 0 to 0.020
0.15 to 0.35