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S31254 Stainless Steel vs. EN 1.1127 Steel

Both S31254 stainless steel and EN 1.1127 steel are iron alloys. They have 55% of their average alloy composition in common. There are 31 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 S31254 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 290
280 to 370
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 80
73
Shear Strength, MPa 490
420 to 480
Tensile Strength: Ultimate (UTS), MPa 720
660 to 790
Tensile Strength: Yield (Proof), MPa 330
410 to 580

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Maximum Temperature: Mechanical, °C 1090
400
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1410
Specific Heat Capacity, J/kg-K 460
470
Thermal Conductivity, W/m-K 14
49
Thermal Expansion, µm/m-K 17
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 28
2.1
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 5.5
1.5
Embodied Energy, MJ/kg 74
19
Embodied Water, L/kg 190
49

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 240
90 to 140
Resilience: Unit (Modulus of Resilience), kJ/m3 270
440 to 880
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 25
23 to 28
Strength to Weight: Bending, points 22
22 to 24
Thermal Diffusivity, mm2/s 3.8
13
Thermal Shock Resistance, points 15
21 to 25

Alloy Composition

Carbon (C), % 0 to 0.020
0.34 to 0.42
Chromium (Cr), % 19.5 to 20.5
0 to 0.4
Copper (Cu), % 0.5 to 1.0
0
Iron (Fe), % 51.4 to 56.3
96.6 to 98.1
Manganese (Mn), % 0 to 1.0
1.4 to 1.7
Molybdenum (Mo), % 6.0 to 6.5
0 to 0.1
Nickel (Ni), % 17.5 to 18.5
0 to 0.4
Nitrogen (N), % 0.18 to 0.22
0
Phosphorus (P), % 0 to 0.030
0 to 0.035
Silicon (Si), % 0 to 0.8
0.15 to 0.35
Sulfur (S), % 0 to 0.010
0 to 0.035