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EN 1.4580 Stainless Steel vs. S31727 Stainless Steel

Both EN 1.4580 stainless steel and S31727 stainless steel are iron alloys. They have a moderately high 90% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is EN 1.4580 stainless steel and the bottom bar is S31727 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
190
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 40
40
Fatigue Strength, MPa 210
240
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 78
78
Shear Strength, MPa 430
430
Tensile Strength: Ultimate (UTS), MPa 620
630
Tensile Strength: Yield (Proof), MPa 250
270

Thermal Properties

Latent Heat of Fusion, J/g 290
290
Maximum Temperature: Corrosion, °C 480
420
Maximum Temperature: Mechanical, °C 950
1010
Melting Completion (Liquidus), °C 1450
1440
Melting Onset (Solidus), °C 1400
1390
Specific Heat Capacity, J/kg-K 470
470
Thermal Expansion, µm/m-K 16
16

Otherwise Unclassified Properties

Base Metal Price, % relative 22
24
Density, g/cm3 7.9
8.0
Embodied Carbon, kg CO2/kg material 4.3
4.7
Embodied Energy, MJ/kg 60
64
Embodied Water, L/kg 150
180

Common Calculations

PREN (Pitting Resistance) 25
35
Resilience: Ultimate (Unit Rupture Work), MJ/m3 200
200
Resilience: Unit (Modulus of Resilience), kJ/m3 150
190
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 22
22
Strength to Weight: Bending, points 21
20
Thermal Shock Resistance, points 14
14

Alloy Composition

Carbon (C), % 0 to 0.080
0 to 0.030
Chromium (Cr), % 16.5 to 18.5
17.5 to 19
Copper (Cu), % 0
2.8 to 4.0
Iron (Fe), % 61.4 to 71
53.7 to 61.3
Manganese (Mn), % 0 to 2.0
0 to 1.0
Molybdenum (Mo), % 2.0 to 2.5
3.8 to 4.5
Nickel (Ni), % 10.5 to 13.5
14.5 to 16.5
Niobium (Nb), % 0 to 1.0
0
Nitrogen (N), % 0
0.15 to 0.21
Phosphorus (P), % 0 to 0.045
0 to 0.030
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.030