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S31727 Stainless Steel vs. EN 1.1127 Steel

Both S31727 stainless steel and EN 1.1127 steel are iron alloys. They have 59% of their average alloy composition in common. There are 27 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is S31727 stainless steel and the bottom bar is EN 1.1127 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
190 to 230
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 40
14 to 25
Fatigue Strength, MPa 240
280 to 370
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
73
Shear Strength, MPa 430
420 to 480
Tensile Strength: Ultimate (UTS), MPa 630
660 to 790
Tensile Strength: Yield (Proof), MPa 270
410 to 580

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 1010
400
Melting Completion (Liquidus), °C 1440
1460
Melting Onset (Solidus), °C 1390
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Expansion, µm/m-K 16
12

Otherwise Unclassified Properties

Base Metal Price, % relative 24
2.1
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 4.7
1.5
Embodied Energy, MJ/kg 64
19
Embodied Water, L/kg 180
49

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 200
90 to 140
Resilience: Unit (Modulus of Resilience), kJ/m3 190
440 to 880
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 22
23 to 28
Strength to Weight: Bending, points 20
22 to 24
Thermal Shock Resistance, points 14
21 to 25

Alloy Composition

Carbon (C), % 0 to 0.030
0.34 to 0.42
Chromium (Cr), % 17.5 to 19
0 to 0.4
Copper (Cu), % 2.8 to 4.0
0
Iron (Fe), % 53.7 to 61.3
96.6 to 98.1
Manganese (Mn), % 0 to 1.0
1.4 to 1.7
Molybdenum (Mo), % 3.8 to 4.5
0 to 0.1
Nickel (Ni), % 14.5 to 16.5
0 to 0.4
Nitrogen (N), % 0.15 to 0.21
0
Phosphorus (P), % 0 to 0.030
0 to 0.035
Silicon (Si), % 0 to 1.0
0.15 to 0.35
Sulfur (S), % 0 to 0.030
0 to 0.035