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S15500 Stainless Steel vs. EN 1.6771 Steel

Both S15500 stainless steel and EN 1.6771 steel are iron alloys. They have 81% of their average alloy composition in common. There are 32 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 S15500 stainless steel and the bottom bar is EN 1.6771 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 290 to 430
280 to 350
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 6.8 to 16
8.0 to 8.7
Fatigue Strength, MPa 350 to 650
440 to 680
Impact Strength: V-Notched Charpy, J 7.8 to 53
20 to 32
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 75
73
Tensile Strength: Ultimate (UTS), MPa 890 to 1490
930 to 1180
Tensile Strength: Yield (Proof), MPa 590 to 1310
740 to 1140

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Maximum Temperature: Mechanical, °C 820
440
Melting Completion (Liquidus), °C 1430
1460
Melting Onset (Solidus), °C 1380
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 17
46
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
8.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
9.2

Otherwise Unclassified Properties

Base Metal Price, % relative 13
5.0
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 2.7
1.9
Embodied Energy, MJ/kg 39
25
Embodied Water, L/kg 130
58

Common Calculations

PREN (Pitting Resistance) 15
2.5
Resilience: Ultimate (Unit Rupture Work), MJ/m3 98 to 120
75 to 93
Resilience: Unit (Modulus of Resilience), kJ/m3 890 to 4460
1460 to 3450
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 32 to 53
33 to 41
Strength to Weight: Bending, points 26 to 37
27 to 31
Thermal Diffusivity, mm2/s 4.6
13
Thermal Shock Resistance, points 30 to 50
27 to 35

Alloy Composition

Carbon (C), % 0 to 0.070
0.27 to 0.33
Chromium (Cr), % 14 to 15.5
0.8 to 1.2
Copper (Cu), % 2.5 to 4.5
0
Iron (Fe), % 71.9 to 79.9
92.2 to 95
Manganese (Mn), % 0 to 1.0
0.6 to 1.0
Molybdenum (Mo), % 0
0.3 to 0.6
Nickel (Ni), % 3.5 to 5.5
3.0 to 4.0
Niobium (Nb), % 0.15 to 0.45
0
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.0
0 to 0.6
Sulfur (S), % 0 to 0.030
0 to 0.020

Comparable Variants