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AISI 321H Stainless Steel vs. ACI-ASTM CF10SMnN Steel

Both AISI 321H stainless steel and ACI-ASTM CF10SMnN steel are iron alloys. They have 89% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is AISI 321H stainless steel and the bottom bar is ACI-ASTM CF10SMnN steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
190
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 40
34
Fatigue Strength, MPa 200
260
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
75
Tensile Strength: Ultimate (UTS), MPa 580
660
Tensile Strength: Yield (Proof), MPa 230
330

Thermal Properties

Latent Heat of Fusion, J/g 290
340
Maximum Temperature: Corrosion, °C 480
410
Maximum Temperature: Mechanical, °C 940
900
Melting Completion (Liquidus), °C 1430
1360
Melting Onset (Solidus), °C 1380
1310
Specific Heat Capacity, J/kg-K 480
500
Thermal Expansion, µm/m-K 17
16

Otherwise Unclassified Properties

Base Metal Price, % relative 16
15
Density, g/cm3 7.8
7.5
Embodied Carbon, kg CO2/kg material 3.2
3.1
Embodied Energy, MJ/kg 46
45
Embodied Water, L/kg 140
150

Common Calculations

PREN (Pitting Resistance) 18
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
180
Resilience: Unit (Modulus of Resilience), kJ/m3 140
280
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
26
Strength to Weight: Axial, points 21
24
Strength to Weight: Bending, points 20
22
Thermal Shock Resistance, points 12
15

Alloy Composition

Carbon (C), % 0.040 to 0.1
0 to 0.1
Chromium (Cr), % 17 to 19
16 to 18
Iron (Fe), % 65.4 to 74
59.1 to 65.4
Manganese (Mn), % 0 to 2.0
7.0 to 9.0
Nickel (Ni), % 9.0 to 12
8.0 to 9.0
Nitrogen (N), % 0
0.080 to 0.18
Phosphorus (P), % 0 to 0.045
0 to 0.060
Silicon (Si), % 0 to 0.75
3.5 to 4.5
Sulfur (S), % 0 to 0.030
0 to 0.030
Titanium (Ti), % 0 to 0.7
0