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S17700 Stainless Steel vs. ZA-8

S17700 stainless steel belongs to the iron alloys classification, while ZA-8 belongs to the zinc alloys. There are 31 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is S17700 stainless steel and the bottom bar is ZA-8.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180 to 430
87 to 100
Elastic (Young's, Tensile) Modulus, GPa 200
85 to 86
Elongation at Break, % 1.0 to 23
1.3 to 8.0
Fatigue Strength, MPa 290 to 560
51 to 100
Poisson's Ratio 0.28
0.26
Shear Modulus, GPa 76
34
Shear Strength, MPa 740 to 940
240 to 280
Tensile Strength: Ultimate (UTS), MPa 1180 to 1650
210 to 370
Tensile Strength: Yield (Proof), MPa 430 to 1210
210 to 290

Thermal Properties

Latent Heat of Fusion, J/g 290
110
Maximum Temperature: Mechanical, °C 890
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 15
120
Thermal Expansion, µm/m-K 11
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
28
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
40

Otherwise Unclassified Properties

Base Metal Price, % relative 13
11
Density, g/cm3 7.7
6.3
Embodied Carbon, kg CO2/kg material 2.8
3.3
Embodied Energy, MJ/kg 40
62
Embodied Water, L/kg 150
420

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 15 to 210
2.8 to 28
Resilience: Unit (Modulus of Resilience), kJ/m3 460 to 3750
260 to 490
Stiffness to Weight: Axial, points 14
7.5
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 42 to 59
9.3 to 17
Strength to Weight: Bending, points 32 to 40
12 to 18
Thermal Diffusivity, mm2/s 4.1
42
Thermal Shock Resistance, points 39 to 54
7.6 to 13

Alloy Composition

Aluminum (Al), % 0.75 to 1.5
8.0 to 8.8
Cadmium (Cd), % 0
0 to 0.0060
Carbon (C), % 0 to 0.090
0
Chromium (Cr), % 16 to 18
0
Copper (Cu), % 0
0.8 to 1.3
Iron (Fe), % 70.5 to 76.8
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), % 6.5 to 7.8
0 to 0.020
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
Zinc (Zn), % 0
89.7 to 91.2

Comparable Variants