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ASTM A387 Grade 22 Steel vs. AISI 304Cu Stainless Steel

Both ASTM A387 grade 22 steel and AISI 304Cu stainless steel are iron alloys. They have 71% 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 ASTM A387 grade 22 steel and the bottom bar is AISI 304Cu stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150 to 180
160
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 21
45
Fatigue Strength, MPa 160 to 240
190
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 74
76
Shear Strength, MPa 300 to 380
370
Tensile Strength: Ultimate (UTS), MPa 480 to 600
530
Tensile Strength: Yield (Proof), MPa 230 to 350
210

Thermal Properties

Latent Heat of Fusion, J/g 260
290
Maximum Temperature: Mechanical, °C 460
930
Melting Completion (Liquidus), °C 1470
1410
Melting Onset (Solidus), °C 1430
1370
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 40
13
Thermal Expansion, µm/m-K 13
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.5
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
2.8

Otherwise Unclassified Properties

Base Metal Price, % relative 3.8
16
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.7
3.0
Embodied Energy, MJ/kg 23
43
Embodied Water, L/kg 58
150

Common Calculations

PREN (Pitting Resistance) 5.6
18
Resilience: Ultimate (Unit Rupture Work), MJ/m3 85 to 110
190
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 320
110
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 17 to 21
19
Strength to Weight: Bending, points 17 to 20
19
Thermal Diffusivity, mm2/s 11
3.5
Thermal Shock Resistance, points 14 to 17
12

Alloy Composition

Carbon (C), % 0.050 to 0.15
0 to 0.030
Chromium (Cr), % 2.0 to 2.5
17 to 19
Copper (Cu), % 0
3.0 to 4.0
Iron (Fe), % 95.1 to 96.8
63.9 to 72
Manganese (Mn), % 0.3 to 0.6
0 to 2.0
Molybdenum (Mo), % 0.9 to 1.1
0
Nickel (Ni), % 0
8.0 to 10
Phosphorus (P), % 0 to 0.025
0 to 0.045
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.025
0 to 0.030