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ACI-ASTM CA6N Steel vs. EN 1.4971 Stainless Steel

Both ACI-ASTM CA6N steel and EN 1.4971 stainless steel are iron alloys. They have 50% of their average alloy composition in common. There are 29 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 ACI-ASTM CA6N steel and the bottom bar is EN 1.4971 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 17
34
Fatigue Strength, MPa 640
270
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 75
81
Tensile Strength: Ultimate (UTS), MPa 1080
800
Tensile Strength: Yield (Proof), MPa 1060
340

Thermal Properties

Latent Heat of Fusion, J/g 280
300
Maximum Temperature: Corrosion, °C 390
570
Maximum Temperature: Mechanical, °C 740
1100
Melting Completion (Liquidus), °C 1440
1460
Melting Onset (Solidus), °C 1400
1410
Specific Heat Capacity, J/kg-K 480
450
Thermal Conductivity, W/m-K 23
13
Thermal Expansion, µm/m-K 9.9
15

Otherwise Unclassified Properties

Base Metal Price, % relative 11
70
Density, g/cm3 7.8
8.4
Embodied Carbon, kg CO2/kg material 2.5
7.6
Embodied Energy, MJ/kg 35
110
Embodied Water, L/kg 110
300

Common Calculations

PREN (Pitting Resistance) 12
38
Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
220
Resilience: Unit (Modulus of Resilience), kJ/m3 2900
280
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 38
26
Strength to Weight: Bending, points 30
23
Thermal Diffusivity, mm2/s 6.1
3.4
Thermal Shock Resistance, points 40
19

Alloy Composition

Carbon (C), % 0 to 0.060
0.080 to 0.16
Chromium (Cr), % 10.5 to 12.5
20 to 22.5
Cobalt (Co), % 0
18.5 to 21
Iron (Fe), % 77.9 to 83.5
24.3 to 37.1
Manganese (Mn), % 0 to 0.5
0 to 2.0
Molybdenum (Mo), % 0
2.5 to 3.5
Nickel (Ni), % 6.0 to 8.0
19 to 21
Niobium (Nb), % 0
0.75 to 1.3
Nitrogen (N), % 0
0.1 to 0.2
Phosphorus (P), % 0 to 0.020
0 to 0.035
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.020
0 to 0.015
Tungsten (W), % 0
2.0 to 3.0