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EN 1.6771 Steel vs. EN 1.4658 Stainless Steel

Both EN 1.6771 steel and EN 1.4658 stainless steel are iron alloys. They have 63% of their average alloy composition in common. There are 30 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 1.6771 steel and the bottom bar is EN 1.4658 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 280 to 350
260
Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 8.0 to 8.7
28
Fatigue Strength, MPa 440 to 680
530
Impact Strength: V-Notched Charpy, J 20 to 32
110
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 73
81
Tensile Strength: Ultimate (UTS), MPa 930 to 1180
900
Tensile Strength: Yield (Proof), MPa 740 to 1140
730

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Maximum Temperature: Mechanical, °C 440
1100
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1420
1400
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 46
16
Thermal Expansion, µm/m-K 13
13

Otherwise Unclassified Properties

Base Metal Price, % relative 5.0
25
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.9
4.5
Embodied Energy, MJ/kg 25
61
Embodied Water, L/kg 58
200

Common Calculations

PREN (Pitting Resistance) 2.5
49
Resilience: Ultimate (Unit Rupture Work), MJ/m3 75 to 93
240
Resilience: Unit (Modulus of Resilience), kJ/m3 1460 to 3450
1280
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 33 to 41
32
Strength to Weight: Bending, points 27 to 31
26
Thermal Diffusivity, mm2/s 13
4.3
Thermal Shock Resistance, points 27 to 35
24

Alloy Composition

Carbon (C), % 0.27 to 0.33
0 to 0.030
Chromium (Cr), % 0.8 to 1.2
26 to 29
Cobalt (Co), % 0
0.5 to 2.0
Copper (Cu), % 0
0 to 1.0
Iron (Fe), % 92.2 to 95
50.9 to 63.7
Manganese (Mn), % 0.6 to 1.0
0 to 1.5
Molybdenum (Mo), % 0.3 to 0.6
4.0 to 5.0
Nickel (Ni), % 3.0 to 4.0
5.5 to 9.5
Nitrogen (N), % 0
0.3 to 0.5
Phosphorus (P), % 0 to 0.030
0 to 0.035
Silicon (Si), % 0 to 0.6
0 to 0.5
Sulfur (S), % 0 to 0.020
0 to 0.010