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AISI 334 Stainless Steel vs. ACI-ASTM CB7Cu-2 Steel

Both AISI 334 stainless steel and ACI-ASTM CB7Cu-2 steel are iron alloys. They have 80% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is AISI 334 stainless steel and the bottom bar is ACI-ASTM CB7Cu-2 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
300 to 420
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 34
5.7 to 11
Fatigue Strength, MPa 150
420 to 590
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
75
Tensile Strength: Ultimate (UTS), MPa 540
960 to 1350
Tensile Strength: Yield (Proof), MPa 190
760 to 1180

Thermal Properties

Latent Heat of Fusion, J/g 290
280
Melting Completion (Liquidus), °C 1410
1430
Melting Onset (Solidus), °C 1370
1380
Specific Heat Capacity, J/kg-K 480
480
Thermal Expansion, µm/m-K 16
11

Otherwise Unclassified Properties

Base Metal Price, % relative 22
13
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 4.1
2.6
Embodied Energy, MJ/kg 59
38
Embodied Water, L/kg 170
130

Common Calculations

PREN (Pitting Resistance) 19
15
Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
71 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 96
1510 to 3600
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 19
34 to 48
Strength to Weight: Bending, points 19
28 to 35
Thermal Shock Resistance, points 12
32 to 45

Alloy Composition

Aluminum (Al), % 0.15 to 0.6
0
Carbon (C), % 0 to 0.080
0 to 0.070
Chromium (Cr), % 18 to 20
14 to 15.5
Copper (Cu), % 0
2.5 to 3.2
Iron (Fe), % 55.7 to 62.7
73.6 to 79
Manganese (Mn), % 0 to 1.0
0 to 0.7
Nickel (Ni), % 19 to 21
4.5 to 5.5
Niobium (Nb), % 0
0 to 0.35
Nitrogen (N), % 0
0 to 0.050
Phosphorus (P), % 0 to 0.030
0 to 0.035
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.030
Titanium (Ti), % 0.15 to 0.6
0