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AISI 204 Stainless Steel vs. ACI-ASTM CB7Cu-2 Steel

Both AISI 204 stainless steel and ACI-ASTM CB7Cu-2 steel are iron alloys. They have a moderately high 91% of their average alloy composition in common. There are 30 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 AISI 204 stainless steel and the bottom bar is ACI-ASTM CB7Cu-2 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210 to 330
300 to 420
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 23 to 39
5.7 to 11
Fatigue Strength, MPa 320 to 720
420 to 590
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
75
Tensile Strength: Ultimate (UTS), MPa 730 to 1100
960 to 1350
Tensile Strength: Yield (Proof), MPa 380 to 1080
760 to 1180

Thermal Properties

Latent Heat of Fusion, J/g 280
280
Melting Completion (Liquidus), °C 1410
1430
Melting Onset (Solidus), °C 1370
1380
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
17
Thermal Expansion, µm/m-K 17
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 10
13
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.4
2.6
Embodied Energy, MJ/kg 35
38
Embodied Water, L/kg 130
130

Common Calculations

PREN (Pitting Resistance) 20
15
Resilience: Ultimate (Unit Rupture Work), MJ/m3 240 to 250
71 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 360 to 2940
1510 to 3600
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 27 to 40
34 to 48
Strength to Weight: Bending, points 24 to 31
28 to 35
Thermal Diffusivity, mm2/s 4.1
4.6
Thermal Shock Resistance, points 16 to 24
32 to 45

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.070
Chromium (Cr), % 15 to 17
14 to 15.5
Copper (Cu), % 0
2.5 to 3.2
Iron (Fe), % 69.6 to 76.4
73.6 to 79
Manganese (Mn), % 7.0 to 9.0
0 to 0.7
Nickel (Ni), % 1.5 to 3.0
4.5 to 5.5
Niobium (Nb), % 0
0 to 0.35
Nitrogen (N), % 0.15 to 0.3
0 to 0.050
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030