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S31727 Stainless Steel vs. EN 1.7380 Steel

Both S31727 stainless steel and EN 1.7380 steel are iron alloys. They have 62% of their average alloy composition in common. There are 28 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 1.7380 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
160 to 170
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 40
19 to 20
Fatigue Strength, MPa 240
200 to 230
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
74
Shear Strength, MPa 430
330 to 350
Tensile Strength: Ultimate (UTS), MPa 630
540 to 550
Tensile Strength: Yield (Proof), MPa 270
290 to 330

Thermal Properties

Latent Heat of Fusion, J/g 290
260
Maximum Temperature: Mechanical, °C 1010
460
Melting Completion (Liquidus), °C 1440
1470
Melting Onset (Solidus), °C 1390
1430
Specific Heat Capacity, J/kg-K 470
470
Thermal Expansion, µm/m-K 16
13

Otherwise Unclassified Properties

Base Metal Price, % relative 24
3.8
Density, g/cm3 8.0
7.9
Embodied Carbon, kg CO2/kg material 4.7
1.8
Embodied Energy, MJ/kg 64
23
Embodied Water, L/kg 180
59

Common Calculations

PREN (Pitting Resistance) 35
5.6
Resilience: Ultimate (Unit Rupture Work), MJ/m3 200
87 to 98
Resilience: Unit (Modulus of Resilience), kJ/m3 190
230 to 280
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 22
19 to 20
Strength to Weight: Bending, points 20
19
Thermal Shock Resistance, points 14
15 to 16

Alloy Composition

Carbon (C), % 0 to 0.030
0.080 to 0.14
Chromium (Cr), % 17.5 to 19
2.0 to 2.5
Copper (Cu), % 2.8 to 4.0
0 to 0.3
Iron (Fe), % 53.7 to 61.3
94.6 to 96.6
Manganese (Mn), % 0 to 1.0
0.4 to 0.8
Molybdenum (Mo), % 3.8 to 4.5
0.9 to 1.1
Nickel (Ni), % 14.5 to 16.5
0
Nitrogen (N), % 0.15 to 0.21
0 to 0.012
Phosphorus (P), % 0 to 0.030
0 to 0.020
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.010