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S21460 Stainless Steel vs. ACI-ASTM CK3MCuN Steel

Both S21460 stainless steel and ACI-ASTM CK3MCuN steel are iron alloys. They have 78% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is S21460 stainless steel and the bottom bar is ACI-ASTM CK3MCuN steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 250
180
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 46
39
Fatigue Strength, MPa 390
250
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
80
Tensile Strength: Ultimate (UTS), MPa 830
620
Tensile Strength: Yield (Proof), MPa 430
290

Thermal Properties

Latent Heat of Fusion, J/g 290
300
Maximum Temperature: Corrosion, °C 410
420
Maximum Temperature: Mechanical, °C 920
1090
Melting Completion (Liquidus), °C 1380
1460
Melting Onset (Solidus), °C 1330
1350
Specific Heat Capacity, J/kg-K 480
460
Thermal Expansion, µm/m-K 18
16

Otherwise Unclassified Properties

Base Metal Price, % relative 14
29
Density, g/cm3 7.6
8.0
Embodied Carbon, kg CO2/kg material 3.0
5.6
Embodied Energy, MJ/kg 43
76
Embodied Water, L/kg 160
190

Common Calculations

PREN (Pitting Resistance) 25
45
Resilience: Ultimate (Unit Rupture Work), MJ/m3 320
200
Resilience: Unit (Modulus of Resilience), kJ/m3 460
210
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 30
21
Strength to Weight: Bending, points 26
20
Thermal Shock Resistance, points 17
14

Alloy Composition

Carbon (C), % 0 to 0.12
0 to 0.025
Chromium (Cr), % 17 to 19
19.5 to 20.5
Copper (Cu), % 0
0.5 to 1.0
Iron (Fe), % 57.3 to 63.7
49.5 to 56.3
Manganese (Mn), % 14 to 16
0 to 1.2
Molybdenum (Mo), % 0
6.0 to 7.0
Nickel (Ni), % 5.0 to 6.0
17.5 to 19.5
Nitrogen (N), % 0.35 to 0.5
0.18 to 0.24
Phosphorus (P), % 0 to 0.060
0 to 0.045
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.010