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S31254 Stainless Steel vs. S64512 Stainless Steel

Both S31254 stainless steel and S64512 stainless steel are iron alloys. They have 71% of their average alloy composition in common. There are 34 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is S31254 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 290
540
Poisson's Ratio 0.28
0.28
Reduction in Area, % 56
34
Shear Modulus, GPa 80
76
Shear Strength, MPa 490
700
Tensile Strength: Ultimate (UTS), MPa 720
1140
Tensile Strength: Yield (Proof), MPa 330
890

Thermal Properties

Latent Heat of Fusion, J/g 300
270
Maximum Temperature: Corrosion, °C 420
390
Maximum Temperature: Mechanical, °C 1090
750
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 460
470
Thermal Conductivity, W/m-K 14
28
Thermal Expansion, µm/m-K 17
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
3.6
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
4.1

Otherwise Unclassified Properties

Base Metal Price, % relative 28
10
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 5.5
3.3
Embodied Energy, MJ/kg 74
47
Embodied Water, L/kg 190
110

Common Calculations

PREN (Pitting Resistance) 44
18
Resilience: Ultimate (Unit Rupture Work), MJ/m3 240
180
Resilience: Unit (Modulus of Resilience), kJ/m3 270
2020
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 25
40
Strength to Weight: Bending, points 22
31
Thermal Diffusivity, mm2/s 3.8
7.5
Thermal Shock Resistance, points 15
42

Alloy Composition

Carbon (C), % 0 to 0.020
0.080 to 0.15
Chromium (Cr), % 19.5 to 20.5
11 to 12.5
Copper (Cu), % 0.5 to 1.0
0
Iron (Fe), % 51.4 to 56.3
80.6 to 84.7
Manganese (Mn), % 0 to 1.0
0.5 to 0.9
Molybdenum (Mo), % 6.0 to 6.5
1.5 to 2.0
Nickel (Ni), % 17.5 to 18.5
2.0 to 3.0
Nitrogen (N), % 0.18 to 0.22
0.010 to 0.050
Phosphorus (P), % 0 to 0.030
0 to 0.025
Silicon (Si), % 0 to 0.8
0 to 0.35
Sulfur (S), % 0 to 0.010
0 to 0.025
Vanadium (V), % 0
0.25 to 0.4