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EN 1.4971 Stainless Steel vs. ACI-ASTM CF10SMnN Steel

Both EN 1.4971 stainless steel and ACI-ASTM CF10SMnN steel are iron alloys. They have 58% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is EN 1.4971 stainless steel and the bottom bar is ACI-ASTM CF10SMnN steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 240
190
Elastic (Young's, Tensile) Modulus, GPa 210
190
Elongation at Break, % 34
34
Fatigue Strength, MPa 270
260
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 81
75
Tensile Strength: Ultimate (UTS), MPa 800
660
Tensile Strength: Yield (Proof), MPa 340
330

Thermal Properties

Latent Heat of Fusion, J/g 300
340
Maximum Temperature: Corrosion, °C 570
410
Maximum Temperature: Mechanical, °C 1100
900
Melting Completion (Liquidus), °C 1460
1360
Melting Onset (Solidus), °C 1410
1310
Specific Heat Capacity, J/kg-K 450
500
Thermal Expansion, µm/m-K 15
16

Otherwise Unclassified Properties

Base Metal Price, % relative 70
15
Density, g/cm3 8.4
7.5
Embodied Carbon, kg CO2/kg material 7.6
3.1
Embodied Energy, MJ/kg 110
45
Embodied Water, L/kg 300
150

Common Calculations

PREN (Pitting Resistance) 38
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 220
180
Resilience: Unit (Modulus of Resilience), kJ/m3 280
280
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
26
Strength to Weight: Axial, points 26
24
Strength to Weight: Bending, points 23
22
Thermal Shock Resistance, points 19
15

Alloy Composition

Carbon (C), % 0.080 to 0.16
0 to 0.1
Chromium (Cr), % 20 to 22.5
16 to 18
Cobalt (Co), % 18.5 to 21
0
Iron (Fe), % 24.3 to 37.1
59.1 to 65.4
Manganese (Mn), % 0 to 2.0
7.0 to 9.0
Molybdenum (Mo), % 2.5 to 3.5
0
Nickel (Ni), % 19 to 21
8.0 to 9.0
Niobium (Nb), % 0.75 to 1.3
0
Nitrogen (N), % 0.1 to 0.2
0.080 to 0.18
Phosphorus (P), % 0 to 0.035
0 to 0.060
Silicon (Si), % 0 to 1.0
3.5 to 4.5
Sulfur (S), % 0 to 0.015
0 to 0.030
Tungsten (W), % 2.0 to 3.0
0