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S38815 Stainless Steel vs. ACI-ASTM CN3M Steel

Both S38815 stainless steel and ACI-ASTM CN3M steel are iron alloys. They have 79% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is S38815 stainless steel and the bottom bar is ACI-ASTM CN3M steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
140
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 34
34
Fatigue Strength, MPa 230
150
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 74
80
Tensile Strength: Ultimate (UTS), MPa 610
500
Tensile Strength: Yield (Proof), MPa 290
190

Thermal Properties

Latent Heat of Fusion, J/g 370
310
Maximum Temperature: Corrosion, °C 400
430
Maximum Temperature: Mechanical, °C 860
1100
Melting Completion (Liquidus), °C 1360
1450
Melting Onset (Solidus), °C 1310
1400
Specific Heat Capacity, J/kg-K 500
470
Thermal Expansion, µm/m-K 15
16

Otherwise Unclassified Properties

Base Metal Price, % relative 19
31
Density, g/cm3 7.5
8.1
Embodied Carbon, kg CO2/kg material 3.8
5.9
Embodied Energy, MJ/kg 54
80
Embodied Water, L/kg 140
200

Common Calculations

PREN (Pitting Resistance) 18
38
Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
130
Resilience: Unit (Modulus of Resilience), kJ/m3 220
89
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 22
17
Strength to Weight: Bending, points 21
17
Thermal Shock Resistance, points 15
11

Alloy Composition

Aluminum (Al), % 0 to 0.3
0
Carbon (C), % 0 to 0.030
0 to 0.030
Chromium (Cr), % 13 to 15
20 to 22
Copper (Cu), % 0.75 to 1.5
0
Iron (Fe), % 56.1 to 67
42.4 to 52.5
Manganese (Mn), % 0 to 2.0
0 to 2.0
Molybdenum (Mo), % 0.75 to 1.5
4.5 to 5.5
Nickel (Ni), % 13 to 17
23 to 27
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 5.5 to 6.5
0 to 1.0
Sulfur (S), % 0 to 0.020
0 to 0.030