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S31730 Stainless Steel vs. EN 1.4659 Stainless Steel

Both S31730 stainless steel and EN 1.4659 stainless steel are iron alloys. They have 81% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is S31730 stainless steel and the bottom bar is EN 1.4659 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
260
Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 40
49
Fatigue Strength, MPa 170
460
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
81
Shear Strength, MPa 370
640
Tensile Strength: Ultimate (UTS), MPa 540
900
Tensile Strength: Yield (Proof), MPa 200
480

Thermal Properties

Latent Heat of Fusion, J/g 290
300
Maximum Temperature: Corrosion, °C 420
440
Maximum Temperature: Mechanical, °C 990
1100
Melting Completion (Liquidus), °C 1430
1480
Melting Onset (Solidus), °C 1390
1430
Specific Heat Capacity, J/kg-K 470
460
Thermal Expansion, µm/m-K 16
16

Otherwise Unclassified Properties

Base Metal Price, % relative 24
37
Density, g/cm3 8.0
8.2
Embodied Carbon, kg CO2/kg material 4.6
6.5
Embodied Energy, MJ/kg 63
89
Embodied Water, L/kg 180
220

Common Calculations

PREN (Pitting Resistance) 30
54
Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
370
Resilience: Unit (Modulus of Resilience), kJ/m3 99
550
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 19
31
Strength to Weight: Bending, points 18
25
Thermal Shock Resistance, points 12
19

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.020
Chromium (Cr), % 17 to 19
23 to 25
Copper (Cu), % 4.0 to 5.0
1.0 to 2.0
Iron (Fe), % 52.4 to 61
35.7 to 45.7
Manganese (Mn), % 0 to 2.0
2.0 to 4.0
Molybdenum (Mo), % 3.0 to 4.0
5.5 to 6.5
Nickel (Ni), % 15 to 16.5
21 to 23
Nitrogen (N), % 0 to 0.045
0.35 to 0.5
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.0
0 to 0.7
Sulfur (S), % 0 to 0.010
0 to 0.010
Tungsten (W), % 0
1.5 to 2.5