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S31727 Stainless Steel vs. ZA-8

S31727 stainless steel belongs to the iron alloys classification, while ZA-8 belongs to the zinc alloys. There are 28 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is S31727 stainless steel and the bottom bar is ZA-8.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
87 to 100
Elastic (Young's, Tensile) Modulus, GPa 200
85 to 86
Elongation at Break, % 40
1.3 to 8.0
Fatigue Strength, MPa 240
51 to 100
Poisson's Ratio 0.28
0.26
Rockwell B Hardness 83
54 to 65
Shear Modulus, GPa 78
34
Shear Strength, MPa 430
240 to 280
Tensile Strength: Ultimate (UTS), MPa 630
210 to 370
Tensile Strength: Yield (Proof), MPa 270
210 to 290

Thermal Properties

Latent Heat of Fusion, J/g 290
110
Maximum Temperature: Mechanical, °C 1010
100
Melting Completion (Liquidus), °C 1440
400
Melting Onset (Solidus), °C 1390
380
Specific Heat Capacity, J/kg-K 470
440
Thermal Expansion, µm/m-K 16
23

Otherwise Unclassified Properties

Base Metal Price, % relative 24
11
Density, g/cm3 8.0
6.3
Embodied Carbon, kg CO2/kg material 4.7
3.3
Embodied Energy, MJ/kg 64
62
Embodied Water, L/kg 180
420

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 200
2.8 to 28
Resilience: Unit (Modulus of Resilience), kJ/m3 190
260 to 490
Stiffness to Weight: Axial, points 14
7.5
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 22
9.3 to 17
Strength to Weight: Bending, points 20
12 to 18
Thermal Shock Resistance, points 14
7.6 to 13

Alloy Composition

Aluminum (Al), % 0
8.0 to 8.8
Cadmium (Cd), % 0
0 to 0.0060
Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 17.5 to 19
0
Copper (Cu), % 2.8 to 4.0
0.8 to 1.3
Iron (Fe), % 53.7 to 61.3
0 to 0.075
Lead (Pb), % 0
0 to 0.0060
Magnesium (Mg), % 0
0.015 to 0.030
Manganese (Mn), % 0 to 1.0
0
Molybdenum (Mo), % 3.8 to 4.5
0
Nickel (Ni), % 14.5 to 16.5
0 to 0.020
Nitrogen (N), % 0.15 to 0.21
0
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0 to 1.0
0 to 0.045
Sulfur (S), % 0 to 0.030
0
Tin (Sn), % 0
0 to 0.0030
Zinc (Zn), % 0
89.7 to 91.2