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EN 1.4865 Stainless Steel vs. ACI-ASTM CG8M Steel

Both EN 1.4865 stainless steel and ACI-ASTM CG8M steel are iron alloys. They have 72% of their average alloy composition in common. There are 32 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 EN 1.4865 stainless steel and the bottom bar is ACI-ASTM CG8M steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
180
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 6.8
45
Fatigue Strength, MPa 120
280
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
79
Tensile Strength: Ultimate (UTS), MPa 470
550
Tensile Strength: Yield (Proof), MPa 250
300

Thermal Properties

Latent Heat of Fusion, J/g 320
300
Maximum Temperature: Corrosion, °C 410
420
Maximum Temperature: Mechanical, °C 1020
1020
Melting Completion (Liquidus), °C 1380
1450
Melting Onset (Solidus), °C 1330
1400
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 12
16
Thermal Expansion, µm/m-K 15
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 33
20
Density, g/cm3 8.0
7.9
Embodied Carbon, kg CO2/kg material 5.8
4.1
Embodied Energy, MJ/kg 81
56
Embodied Water, L/kg 200
160

Common Calculations

PREN (Pitting Resistance) 20
31
Resilience: Ultimate (Unit Rupture Work), MJ/m3 27
210
Resilience: Unit (Modulus of Resilience), kJ/m3 160
220
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 16
19
Strength to Weight: Bending, points 17
19
Thermal Diffusivity, mm2/s 3.1
4.3
Thermal Shock Resistance, points 11
12

Alloy Composition

Carbon (C), % 0.3 to 0.5
0 to 0.080
Chromium (Cr), % 18 to 21
18 to 21
Iron (Fe), % 34.4 to 44.7
58.8 to 70
Manganese (Mn), % 0 to 2.0
0 to 1.5
Molybdenum (Mo), % 0 to 0.5
3.0 to 4.0
Nickel (Ni), % 36 to 39
9.0 to 13
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 1.0 to 2.5
0 to 1.5
Sulfur (S), % 0 to 0.030
0 to 0.040