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S31730 Stainless Steel vs. ZA-27

S31730 stainless steel belongs to the iron alloys classification, while ZA-27 belongs to the zinc alloys. There are 28 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is S31730 stainless steel and the bottom bar is ZA-27.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
100 to 120
Elastic (Young's, Tensile) Modulus, GPa 200
78
Elongation at Break, % 40
2.0 to 4.5
Fatigue Strength, MPa 170
110 to 170
Poisson's Ratio 0.28
0.27
Rockwell B Hardness 78
60 to 72
Shear Modulus, GPa 77
31
Shear Strength, MPa 370
230 to 330
Tensile Strength: Ultimate (UTS), MPa 540
400 to 430
Tensile Strength: Yield (Proof), MPa 200
260 to 370

Thermal Properties

Latent Heat of Fusion, J/g 290
130
Maximum Temperature: Mechanical, °C 990
120
Melting Completion (Liquidus), °C 1430
480
Melting Onset (Solidus), °C 1390
380
Specific Heat Capacity, J/kg-K 470
530
Thermal Expansion, µm/m-K 16
26

Otherwise Unclassified Properties

Base Metal Price, % relative 24
11
Density, g/cm3 8.0
5.0
Embodied Carbon, kg CO2/kg material 4.6
4.2
Embodied Energy, MJ/kg 63
80
Embodied Water, L/kg 180
570

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
8.1 to 18
Resilience: Unit (Modulus of Resilience), kJ/m3 99
420 to 890
Stiffness to Weight: Axial, points 14
8.6
Stiffness to Weight: Bending, points 24
28
Strength to Weight: Axial, points 19
22 to 24
Strength to Weight: Bending, points 18
24 to 25
Thermal Shock Resistance, points 12
14 to 15

Alloy Composition

Aluminum (Al), % 0
25 to 28
Cadmium (Cd), % 0
0 to 0.0060
Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 17 to 19
0
Copper (Cu), % 4.0 to 5.0
2.0 to 2.5
Iron (Fe), % 52.4 to 61
0 to 0.1
Lead (Pb), % 0
0 to 0.0060
Magnesium (Mg), % 0
0.010 to 0.020
Manganese (Mn), % 0 to 2.0
0
Molybdenum (Mo), % 3.0 to 4.0
0
Nickel (Ni), % 15 to 16.5
0 to 0.020
Nitrogen (N), % 0 to 0.045
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0 to 0.080
Sulfur (S), % 0 to 0.010
0
Tin (Sn), % 0
0 to 0.0030
Zinc (Zn), % 0
69.3 to 73