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ACI-ASTM CH10 Steel vs. AISI 329 Stainless Steel

Both ACI-ASTM CH10 steel and AISI 329 stainless steel are iron alloys. They have 89% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CH10 steel and the bottom bar is AISI 329 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
240
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 34
17
Fatigue Strength, MPa 180
330
Poisson's Ratio 0.27
0.27
Shear Modulus, GPa 78
80
Tensile Strength: Ultimate (UTS), MPa 540
710
Tensile Strength: Yield (Proof), MPa 230
540

Thermal Properties

Latent Heat of Fusion, J/g 310
300
Maximum Temperature: Corrosion, °C 440
450
Maximum Temperature: Mechanical, °C 1100
1100
Melting Completion (Liquidus), °C 1410
1440
Melting Onset (Solidus), °C 1370
1390
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
16
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 20
16
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 3.7
3.1
Embodied Energy, MJ/kg 53
44
Embodied Water, L/kg 180
170

Common Calculations

PREN (Pitting Resistance) 25
30
Resilience: Ultimate (Unit Rupture Work), MJ/m3 150
110
Resilience: Unit (Modulus of Resilience), kJ/m3 140
730
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 19
25
Strength to Weight: Bending, points 19
23
Thermal Diffusivity, mm2/s 3.9
4.3
Thermal Shock Resistance, points 12
19

Alloy Composition

Carbon (C), % 0 to 0.1
0 to 0.080
Chromium (Cr), % 22 to 26
23 to 28
Iron (Fe), % 54.8 to 66
63.1 to 74
Manganese (Mn), % 0 to 1.5
0 to 1.0
Molybdenum (Mo), % 0 to 0.5
1.0 to 2.0
Nickel (Ni), % 12 to 15
2.0 to 5.0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 2.0
0 to 0.75
Sulfur (S), % 0 to 0.040
0 to 0.030