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S31727 Stainless Steel vs. EN 1.7711 Steel

Both S31727 stainless steel and EN 1.7711 steel are iron alloys. They have 60% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is S31727 stainless steel and the bottom bar is EN 1.7711 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
210 to 280
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 40
16 to 22
Fatigue Strength, MPa 240
290 to 520
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
73
Shear Strength, MPa 430
440 to 570
Tensile Strength: Ultimate (UTS), MPa 630
690 to 930
Tensile Strength: Yield (Proof), MPa 270
400 to 800

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 1010
430
Melting Completion (Liquidus), °C 1440
1460
Melting Onset (Solidus), °C 1390
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Expansion, µm/m-K 16
11

Otherwise Unclassified Properties

Base Metal Price, % relative 24
3.0
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 4.7
2.3
Embodied Energy, MJ/kg 64
32
Embodied Water, L/kg 180
54

Common Calculations

PREN (Pitting Resistance) 35
2.9
Resilience: Ultimate (Unit Rupture Work), MJ/m3 200
130 to 140
Resilience: Unit (Modulus of Resilience), kJ/m3 190
430 to 1690
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 22
24 to 33
Strength to Weight: Bending, points 20
22 to 27
Thermal Shock Resistance, points 14
24 to 32

Alloy Composition

Aluminum (Al), % 0
0 to 0.015
Carbon (C), % 0 to 0.030
0.36 to 0.44
Chromium (Cr), % 17.5 to 19
0.9 to 1.2
Copper (Cu), % 2.8 to 4.0
0
Iron (Fe), % 53.7 to 61.3
96 to 97.5
Manganese (Mn), % 0 to 1.0
0.45 to 0.85
Molybdenum (Mo), % 3.8 to 4.5
0.5 to 0.65
Nickel (Ni), % 14.5 to 16.5
0
Nitrogen (N), % 0.15 to 0.21
0
Phosphorus (P), % 0 to 0.030
0 to 0.025
Silicon (Si), % 0 to 1.0
0 to 0.4
Sulfur (S), % 0 to 0.030
0 to 0.030
Vanadium (V), % 0
0.25 to 0.35