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S31727 Stainless Steel vs. S64512 Stainless Steel

Both S31727 stainless steel and S64512 stainless steel are iron alloys. They have 74% of their average alloy composition in common. There are 30 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 S31727 stainless steel and the bottom bar is S64512 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
330
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 40
17
Fatigue Strength, MPa 240
540
Poisson's Ratio 0.28
0.28
Reduction in Area, % 56
34
Shear Modulus, GPa 78
76
Shear Strength, MPa 430
700
Tensile Strength: Ultimate (UTS), MPa 630
1140
Tensile Strength: Yield (Proof), MPa 270
890

Thermal Properties

Latent Heat of Fusion, J/g 290
270
Maximum Temperature: Corrosion, °C 420
390
Maximum Temperature: Mechanical, °C 1010
750
Melting Completion (Liquidus), °C 1440
1460
Melting Onset (Solidus), °C 1390
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Expansion, µm/m-K 16
10

Otherwise Unclassified Properties

Base Metal Price, % relative 24
10
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 4.7
3.3
Embodied Energy, MJ/kg 64
47
Embodied Water, L/kg 180
110

Common Calculations

PREN (Pitting Resistance) 35
18
Resilience: Ultimate (Unit Rupture Work), MJ/m3 200
180
Resilience: Unit (Modulus of Resilience), kJ/m3 190
2020
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 22
40
Strength to Weight: Bending, points 20
31
Thermal Shock Resistance, points 14
42

Alloy Composition

Carbon (C), % 0 to 0.030
0.080 to 0.15
Chromium (Cr), % 17.5 to 19
11 to 12.5
Copper (Cu), % 2.8 to 4.0
0
Iron (Fe), % 53.7 to 61.3
80.6 to 84.7
Manganese (Mn), % 0 to 1.0
0.5 to 0.9
Molybdenum (Mo), % 3.8 to 4.5
1.5 to 2.0
Nickel (Ni), % 14.5 to 16.5
2.0 to 3.0
Nitrogen (N), % 0.15 to 0.21
0.010 to 0.050
Phosphorus (P), % 0 to 0.030
0 to 0.025
Silicon (Si), % 0 to 1.0
0 to 0.35
Sulfur (S), % 0 to 0.030
0 to 0.025
Vanadium (V), % 0
0.25 to 0.4