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ACI-ASTM CF8 Steel vs. EN 1.4525 Stainless Steel

Both ACI-ASTM CF8 steel and EN 1.4525 stainless steel are iron alloys. They have a moderately high 91% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CF8 steel and the bottom bar is EN 1.4525 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 55
5.6 to 13
Fatigue Strength, MPa 260
480 to 540
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
76
Tensile Strength: Ultimate (UTS), MPa 540
1030 to 1250
Tensile Strength: Yield (Proof), MPa 260
840 to 1120

Thermal Properties

Latent Heat of Fusion, J/g 300
280
Maximum Temperature: Corrosion, °C 420
430
Maximum Temperature: Mechanical, °C 980
860
Melting Completion (Liquidus), °C 1420
1430
Melting Onset (Solidus), °C 1430
1390
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 16
18
Thermal Expansion, µm/m-K 15
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 16
13
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.1
2.8
Embodied Energy, MJ/kg 44
39
Embodied Water, L/kg 150
130

Common Calculations

PREN (Pitting Resistance) 20
18
Resilience: Ultimate (Unit Rupture Work), MJ/m3 240
68 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 160
1820 to 3230
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 19
36 to 45
Strength to Weight: Bending, points 19
29 to 33
Thermal Diffusivity, mm2/s 4.3
4.7
Thermal Shock Resistance, points 13
34 to 41

Alloy Composition

Carbon (C), % 0 to 0.080
0 to 0.070
Chromium (Cr), % 18 to 21
15 to 17
Copper (Cu), % 0
2.5 to 4.0
Iron (Fe), % 63.8 to 74
70.4 to 79
Manganese (Mn), % 0 to 1.5
0 to 1.0
Molybdenum (Mo), % 0 to 0.5
0 to 0.8
Nickel (Ni), % 8.0 to 11
3.5 to 5.5
Niobium (Nb), % 0
0 to 0.35
Nitrogen (N), % 0
0 to 0.050
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0 to 2.0
0 to 0.8
Sulfur (S), % 0 to 0.040
0 to 0.025