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ACI-ASTM CA6NM Steel vs. S28200 Stainless Steel

Both ACI-ASTM CA6NM steel and S28200 stainless steel are iron alloys. They have 75% 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 CA6NM steel and the bottom bar is S28200 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 250
260
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 17
45
Fatigue Strength, MPa 380
430
Poisson's Ratio 0.28
0.28
Reduction in Area, % 40
57
Shear Modulus, GPa 76
77
Tensile Strength: Ultimate (UTS), MPa 850
870
Tensile Strength: Yield (Proof), MPa 620
460

Thermal Properties

Latent Heat of Fusion, J/g 280
290
Maximum Temperature: Corrosion, °C 390
410
Maximum Temperature: Mechanical, °C 770
900
Melting Completion (Liquidus), °C 1450
1380
Melting Onset (Solidus), °C 1400
1330
Specific Heat Capacity, J/kg-K 480
480
Thermal Expansion, µm/m-K 10
18

Otherwise Unclassified Properties

Base Metal Price, % relative 10
12
Density, g/cm3 7.8
7.6
Embodied Carbon, kg CO2/kg material 2.5
2.8
Embodied Energy, MJ/kg 34
41
Embodied Water, L/kg 110
160

Common Calculations

PREN (Pitting Resistance) 15
29
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
330
Resilience: Unit (Modulus of Resilience), kJ/m3 1000
540
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
26
Strength to Weight: Axial, points 30
32
Strength to Weight: Bending, points 26
27
Thermal Shock Resistance, points 31
17

Alloy Composition

Carbon (C), % 0 to 0.060
0 to 0.15
Chromium (Cr), % 11.5 to 14
17 to 19
Copper (Cu), % 0
0.75 to 1.3
Iron (Fe), % 78.4 to 84.6
57.7 to 64.1
Manganese (Mn), % 0 to 1.0
17 to 19
Molybdenum (Mo), % 0.4 to 1.0
0.75 to 1.3
Nickel (Ni), % 3.5 to 4.5
0
Nitrogen (N), % 0
0.4 to 0.6
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030