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AISI 204 Stainless Steel vs. Nickel 689

AISI 204 stainless steel belongs to the iron alloys classification, while nickel 689 belongs to the nickel alloys. They have a modest 21% of their average alloy composition in common, which, by itself, doesn't mean much. There are 27 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is AISI 204 stainless steel and the bottom bar is nickel 689.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210 to 330
350
Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 23 to 39
23
Fatigue Strength, MPa 320 to 720
420
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
80
Shear Strength, MPa 500 to 700
790
Tensile Strength: Ultimate (UTS), MPa 730 to 1100
1250
Tensile Strength: Yield (Proof), MPa 380 to 1080
690

Thermal Properties

Latent Heat of Fusion, J/g 280
330
Maximum Temperature: Mechanical, °C 850
990
Melting Completion (Liquidus), °C 1410
1440
Melting Onset (Solidus), °C 1370
1390
Specific Heat Capacity, J/kg-K 480
450
Thermal Expansion, µm/m-K 17
12

Otherwise Unclassified Properties

Base Metal Price, % relative 10
70
Density, g/cm3 7.7
8.5
Embodied Carbon, kg CO2/kg material 2.4
11
Embodied Energy, MJ/kg 35
150
Embodied Water, L/kg 130
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 240 to 250
240
Resilience: Unit (Modulus of Resilience), kJ/m3 360 to 2940
1170
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 27 to 40
41
Strength to Weight: Bending, points 24 to 31
30
Thermal Shock Resistance, points 16 to 24
35

Alloy Composition

Aluminum (Al), % 0
0.75 to 1.3
Boron (B), % 0
0.0030 to 0.010
Carbon (C), % 0 to 0.030
0.1 to 0.2
Chromium (Cr), % 15 to 17
18 to 20
Cobalt (Co), % 0
9.0 to 11
Iron (Fe), % 69.6 to 76.4
0 to 5.0
Manganese (Mn), % 7.0 to 9.0
0 to 0.5
Molybdenum (Mo), % 0
9.0 to 10.5
Nickel (Ni), % 1.5 to 3.0
48.3 to 60.9
Nitrogen (N), % 0.15 to 0.3
0
Phosphorus (P), % 0 to 0.040
0 to 0.015
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.015
Titanium (Ti), % 0
2.3 to 2.8