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S31727 Stainless Steel vs. EN 1.4618 Stainless Steel

Both S31727 stainless steel and EN 1.4618 stainless steel are iron alloys. They have 83% 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 S31727 stainless steel and the bottom bar is EN 1.4618 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
200 to 210
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 40
51
Fatigue Strength, MPa 240
240 to 250
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 78
77
Shear Strength, MPa 430
480 to 500
Tensile Strength: Ultimate (UTS), MPa 630
680 to 700
Tensile Strength: Yield (Proof), MPa 270
250 to 260

Thermal Properties

Latent Heat of Fusion, J/g 290
280
Maximum Temperature: Corrosion, °C 420
410
Maximum Temperature: Mechanical, °C 1010
900
Melting Completion (Liquidus), °C 1440
1400
Melting Onset (Solidus), °C 1390
1360
Specific Heat Capacity, J/kg-K 470
480
Thermal Expansion, µm/m-K 16
16

Otherwise Unclassified Properties

Base Metal Price, % relative 24
13
Density, g/cm3 8.0
7.7
Embodied Carbon, kg CO2/kg material 4.7
2.7
Embodied Energy, MJ/kg 64
39
Embodied Water, L/kg 180
150

Common Calculations

PREN (Pitting Resistance) 35
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 200
270 to 280
Resilience: Unit (Modulus of Resilience), kJ/m3 190
160 to 170
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 22
24 to 25
Strength to Weight: Bending, points 20
22 to 23
Thermal Shock Resistance, points 14
15 to 16

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.1
Chromium (Cr), % 17.5 to 19
16.5 to 18.5
Copper (Cu), % 2.8 to 4.0
1.0 to 2.5
Iron (Fe), % 53.7 to 61.3
62.7 to 72.5
Manganese (Mn), % 0 to 1.0
5.5 to 9.5
Molybdenum (Mo), % 3.8 to 4.5
0
Nickel (Ni), % 14.5 to 16.5
4.5 to 5.5
Nitrogen (N), % 0.15 to 0.21
0 to 0.15
Phosphorus (P), % 0 to 0.030
0 to 0.070
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.010