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S46800 Stainless Steel vs. ZA-8

S46800 stainless steel belongs to the iron alloys classification, while ZA-8 belongs to the zinc alloys. There are 32 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 S46800 stainless steel and the bottom bar is ZA-8.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
87 to 100
Elastic (Young's, Tensile) Modulus, GPa 200
85 to 86
Elongation at Break, % 25
1.3 to 8.0
Fatigue Strength, MPa 160
51 to 100
Poisson's Ratio 0.28
0.26
Rockwell B Hardness 79
54 to 65
Shear Modulus, GPa 77
34
Shear Strength, MPa 300
240 to 280
Tensile Strength: Ultimate (UTS), MPa 470
210 to 370
Tensile Strength: Yield (Proof), MPa 230
210 to 290

Thermal Properties

Latent Heat of Fusion, J/g 290
110
Maximum Temperature: Mechanical, °C 920
100
Melting Completion (Liquidus), °C 1440
400
Melting Onset (Solidus), °C 1400
380
Specific Heat Capacity, J/kg-K 480
440
Thermal Conductivity, W/m-K 23
120
Thermal Expansion, µm/m-K 11
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.8
28
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
40

Otherwise Unclassified Properties

Base Metal Price, % relative 12
11
Density, g/cm3 7.7
6.3
Embodied Carbon, kg CO2/kg material 2.6
3.3
Embodied Energy, MJ/kg 37
62
Embodied Water, L/kg 130
420

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 98
2.8 to 28
Resilience: Unit (Modulus of Resilience), kJ/m3 130
260 to 490
Stiffness to Weight: Axial, points 14
7.5
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 17
9.3 to 17
Strength to Weight: Bending, points 18
12 to 18
Thermal Diffusivity, mm2/s 6.1
42
Thermal Shock Resistance, points 16
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), % 18 to 20
0
Copper (Cu), % 0
0.8 to 1.3
Iron (Fe), % 76.5 to 81.8
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
Nickel (Ni), % 0 to 0.5
0 to 0.020
Niobium (Nb), % 0.1 to 0.6
0
Nitrogen (N), % 0 to 0.030
0
Phosphorus (P), % 0 to 0.040
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
Titanium (Ti), % 0.070 to 0.3
0
Zinc (Zn), % 0
89.7 to 91.2