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S31277 Stainless Steel vs. EN 1.7379 Steel

Both S31277 stainless steel and EN 1.7379 steel are iron alloys. They have 45% of their average alloy composition in common. There are 26 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 S31277 stainless steel and the bottom bar is EN 1.7379 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
190
Elongation at Break, % 45
21
Fatigue Strength, MPa 380
320
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 80
74
Tensile Strength: Ultimate (UTS), MPa 860
670
Tensile Strength: Yield (Proof), MPa 410
460

Thermal Properties

Latent Heat of Fusion, J/g 310
260
Maximum Temperature: Mechanical, °C 1100
460
Melting Completion (Liquidus), °C 1460
1470
Melting Onset (Solidus), °C 1410
1420
Specific Heat Capacity, J/kg-K 460
470
Thermal Expansion, µm/m-K 16
13

Otherwise Unclassified Properties

Base Metal Price, % relative 36
3.8
Density, g/cm3 8.1
7.8
Embodied Carbon, kg CO2/kg material 6.7
1.8
Embodied Energy, MJ/kg 90
23
Embodied Water, L/kg 220
59

Common Calculations

PREN (Pitting Resistance) 51
5.7
Resilience: Ultimate (Unit Rupture Work), MJ/m3 320
120
Resilience: Unit (Modulus of Resilience), kJ/m3 410
550
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 29
24
Strength to Weight: Bending, points 25
22
Thermal Shock Resistance, points 19
19

Alloy Composition

Carbon (C), % 0 to 0.020
0.13 to 0.2
Chromium (Cr), % 20.5 to 23
2.0 to 2.5
Copper (Cu), % 0.5 to 1.5
0
Iron (Fe), % 35.5 to 46.2
94.5 to 96.5
Manganese (Mn), % 0 to 3.0
0.5 to 0.9
Molybdenum (Mo), % 6.5 to 8.0
0.9 to 1.2
Nickel (Ni), % 26 to 28
0
Nitrogen (N), % 0.3 to 0.4
0
Phosphorus (P), % 0 to 0.030
0 to 0.025
Silicon (Si), % 0 to 0.5
0 to 0.6
Sulfur (S), % 0 to 0.010
0 to 0.030