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EN 1.4361 Stainless Steel vs. S31727 Stainless Steel

Both EN 1.4361 stainless steel and S31727 stainless steel are iron alloys. They have a moderately high 91% 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 1.4361 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 190
200
Elongation at Break, % 43
40
Fatigue Strength, MPa 220
240
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 75
78
Shear Strength, MPa 440
430
Tensile Strength: Ultimate (UTS), MPa 630
630
Tensile Strength: Yield (Proof), MPa 250
270

Thermal Properties

Latent Heat of Fusion, J/g 350
290
Maximum Temperature: Corrosion, °C 410
420
Maximum Temperature: Mechanical, °C 940
1010
Melting Completion (Liquidus), °C 1370
1440
Melting Onset (Solidus), °C 1330
1390
Specific Heat Capacity, J/kg-K 490
470
Thermal Expansion, µm/m-K 16
16

Otherwise Unclassified Properties

Base Metal Price, % relative 19
24
Density, g/cm3 7.6
8.0
Embodied Carbon, kg CO2/kg material 3.6
4.7
Embodied Energy, MJ/kg 52
64
Embodied Water, L/kg 150
180

Common Calculations

PREN (Pitting Resistance) 19
35
Resilience: Ultimate (Unit Rupture Work), MJ/m3 220
200
Resilience: Unit (Modulus of Resilience), kJ/m3 160
190
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 23
22
Strength to Weight: Bending, points 21
20
Thermal Shock Resistance, points 15
14

Alloy Composition

Carbon (C), % 0 to 0.015
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), % 58.7 to 65.8
53.7 to 61.3
Manganese (Mn), % 0 to 2.0
0 to 1.0
Molybdenum (Mo), % 0 to 0.2
3.8 to 4.5
Nickel (Ni), % 14 to 16
14.5 to 16.5
Nitrogen (N), % 0 to 0.1
0.15 to 0.21
Phosphorus (P), % 0 to 0.025
0 to 0.030
Silicon (Si), % 3.7 to 4.5
0 to 1.0
Sulfur (S), % 0 to 0.010
0 to 0.030