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ACI-ASTM CG8M Steel vs. EN 1.4982 Stainless Steel

Both ACI-ASTM CG8M steel and EN 1.4982 stainless steel are iron alloys. They have a moderately high 92% of their average alloy composition in common. There are 33 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 CG8M steel and the bottom bar is EN 1.4982 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
230
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 45
28
Fatigue Strength, MPa 280
420
Impact Strength: V-Notched Charpy, J 110
57
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 79
76
Tensile Strength: Ultimate (UTS), MPa 550
750
Tensile Strength: Yield (Proof), MPa 300
570

Thermal Properties

Latent Heat of Fusion, J/g 300
290
Maximum Temperature: Corrosion, °C 420
540
Maximum Temperature: Mechanical, °C 1020
860
Melting Completion (Liquidus), °C 1450
1430
Melting Onset (Solidus), °C 1400
1390
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 16
13
Thermal Expansion, µm/m-K 16
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 20
22
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 4.1
4.9
Embodied Energy, MJ/kg 56
71
Embodied Water, L/kg 160
150

Common Calculations

PREN (Pitting Resistance) 31
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 210
190
Resilience: Unit (Modulus of Resilience), kJ/m3 220
830
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 19
27
Strength to Weight: Bending, points 19
23
Thermal Diffusivity, mm2/s 4.3
3.4
Thermal Shock Resistance, points 12
17

Alloy Composition

Boron (B), % 0
0.0030 to 0.0090
Carbon (C), % 0 to 0.080
0.070 to 0.13
Chromium (Cr), % 18 to 21
14 to 16
Iron (Fe), % 58.8 to 70
61.8 to 69.7
Manganese (Mn), % 0 to 1.5
5.5 to 7.0
Molybdenum (Mo), % 3.0 to 4.0
0.8 to 1.2
Nickel (Ni), % 9.0 to 13
9.0 to 11
Niobium (Nb), % 0
0.75 to 1.3
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.5
0 to 1.0
Sulfur (S), % 0 to 0.040
0 to 0.030
Vanadium (V), % 0
0.15 to 0.4