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EN 1.4310 Stainless Steel vs. EN 1.6771 Steel

Both EN 1.4310 stainless steel and EN 1.6771 steel are iron alloys. They have 78% 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 1.4310 stainless steel and the bottom bar is EN 1.6771 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 270
280 to 350
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 14 to 45
8.0 to 8.7
Fatigue Strength, MPa 240 to 330
440 to 680
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Tensile Strength: Ultimate (UTS), MPa 730 to 900
930 to 1180
Tensile Strength: Yield (Proof), MPa 260 to 570
740 to 1140

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 910
440
Melting Completion (Liquidus), °C 1420
1460
Melting Onset (Solidus), °C 1380
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
46
Thermal Expansion, µm/m-K 18
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
8.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
9.2

Otherwise Unclassified Properties

Base Metal Price, % relative 14
5.0
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 2.9
1.9
Embodied Energy, MJ/kg 42
25
Embodied Water, L/kg 140
58

Common Calculations

PREN (Pitting Resistance) 20
2.5
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 260
75 to 93
Resilience: Unit (Modulus of Resilience), kJ/m3 170 to 830
1460 to 3450
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 26 to 32
33 to 41
Strength to Weight: Bending, points 23 to 27
27 to 31
Thermal Diffusivity, mm2/s 4.0
13
Thermal Shock Resistance, points 15 to 18
27 to 35

Alloy Composition

Carbon (C), % 0.050 to 0.15
0.27 to 0.33
Chromium (Cr), % 16 to 19
0.8 to 1.2
Iron (Fe), % 66.4 to 78
92.2 to 95
Manganese (Mn), % 0 to 2.0
0.6 to 1.0
Molybdenum (Mo), % 0 to 0.8
0.3 to 0.6
Nickel (Ni), % 6.0 to 9.5
3.0 to 4.0
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.045
0 to 0.030
Silicon (Si), % 0 to 2.0
0 to 0.6
Sulfur (S), % 0 to 0.015
0 to 0.020

Comparable Variants