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EN 1.1127 Steel vs. S39274 Stainless Steel

Both EN 1.1127 steel and S39274 stainless steel are iron alloys. They have 63% 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 EN 1.1127 steel and the bottom bar is S39274 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190 to 230
270
Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 14 to 25
17
Fatigue Strength, MPa 280 to 370
380
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 73
81
Shear Strength, MPa 420 to 480
560
Tensile Strength: Ultimate (UTS), MPa 660 to 790
900
Tensile Strength: Yield (Proof), MPa 410 to 580
620

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Maximum Temperature: Mechanical, °C 400
1100
Melting Completion (Liquidus), °C 1460
1480
Melting Onset (Solidus), °C 1410
1430
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 49
16
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 2.1
24
Density, g/cm3 7.8
8.0
Embodied Carbon, kg CO2/kg material 1.5
4.3
Embodied Energy, MJ/kg 19
60
Embodied Water, L/kg 49
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 90 to 140
140
Resilience: Unit (Modulus of Resilience), kJ/m3 440 to 880
940
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 23 to 28
32
Strength to Weight: Bending, points 22 to 24
26
Thermal Diffusivity, mm2/s 13
4.2
Thermal Shock Resistance, points 21 to 25
25

Alloy Composition

Carbon (C), % 0.34 to 0.42
0 to 0.030
Chromium (Cr), % 0 to 0.4
24 to 26
Copper (Cu), % 0
0.2 to 0.8
Iron (Fe), % 96.6 to 98.1
57 to 65.6
Manganese (Mn), % 1.4 to 1.7
0 to 1.0
Molybdenum (Mo), % 0 to 0.1
2.5 to 3.5
Nickel (Ni), % 0 to 0.4
6.0 to 8.0
Nitrogen (N), % 0
0.24 to 0.32
Phosphorus (P), % 0 to 0.035
0 to 0.030
Silicon (Si), % 0.15 to 0.35
0 to 0.8
Sulfur (S), % 0 to 0.035
0 to 0.020
Tungsten (W), % 0
1.5 to 2.5