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EN 1.3967 Stainless Steel vs. ACI-ASTM CG8M Steel

Both EN 1.3967 stainless steel and ACI-ASTM CG8M steel are iron alloys. They have 89% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is EN 1.3967 stainless steel and the bottom bar is ACI-ASTM CG8M steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
180
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 22
45
Fatigue Strength, MPa 240
280
Impact Strength: V-Notched Charpy, J 74
110
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 79
79
Tensile Strength: Ultimate (UTS), MPa 690
550
Tensile Strength: Yield (Proof), MPa 350
300

Thermal Properties

Latent Heat of Fusion, J/g 300
300
Maximum Temperature: Corrosion, °C 440
420
Maximum Temperature: Mechanical, °C 1070
1020
Melting Completion (Liquidus), °C 1430
1450
Melting Onset (Solidus), °C 1380
1400
Specific Heat Capacity, J/kg-K 470
470
Thermal Expansion, µm/m-K 16
16

Otherwise Unclassified Properties

Base Metal Price, % relative 25
20
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 4.8
4.1
Embodied Energy, MJ/kg 66
56
Embodied Water, L/kg 180
160

Common Calculations

PREN (Pitting Resistance) 36
31
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
210
Resilience: Unit (Modulus of Resilience), kJ/m3 310
220
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 24
19
Strength to Weight: Bending, points 22
19
Thermal Shock Resistance, points 15
12

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.080
Chromium (Cr), % 20 to 21.5
18 to 21
Iron (Fe), % 50.3 to 57.8
58.8 to 70
Manganese (Mn), % 4.0 to 6.0
0 to 1.5
Molybdenum (Mo), % 3.0 to 3.5
3.0 to 4.0
Nickel (Ni), % 15 to 17
9.0 to 13
Niobium (Nb), % 0 to 0.25
0
Nitrogen (N), % 0.2 to 0.35
0
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.5
Sulfur (S), % 0 to 0.010
0 to 0.040