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S17400 Stainless Steel vs. ACI-ASTM CC50 Steel

Both S17400 stainless steel and ACI-ASTM CC50 steel are iron alloys. They have 88% of their average alloy composition in common. There are 27 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is S17400 stainless steel and the bottom bar is ACI-ASTM CC50 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 280 to 440
210
Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 75
80
Tensile Strength: Ultimate (UTS), MPa 910 to 1390
430

Thermal Properties

Latent Heat of Fusion, J/g 280
300
Maximum Temperature: Corrosion, °C 450
460
Maximum Temperature: Mechanical, °C 850
1100
Melting Completion (Liquidus), °C 1440
1420
Melting Onset (Solidus), °C 1400
1370
Specific Heat Capacity, J/kg-K 480
490
Thermal Conductivity, W/m-K 17
17
Thermal Expansion, µm/m-K 11
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 14
14
Density, g/cm3 7.8
7.6
Embodied Carbon, kg CO2/kg material 2.7
2.7
Embodied Energy, MJ/kg 39
39
Embodied Water, L/kg 130
170

Common Calculations

PREN (Pitting Resistance) 16
28
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
26
Strength to Weight: Axial, points 32 to 49
16
Strength to Weight: Bending, points 27 to 35
17
Thermal Diffusivity, mm2/s 4.5
4.5
Thermal Shock Resistance, points 30 to 46
14

Alloy Composition

Carbon (C), % 0 to 0.070
0 to 0.5
Chromium (Cr), % 15 to 17
26 to 30
Copper (Cu), % 3.0 to 5.0
0
Iron (Fe), % 70.4 to 78.9
62.9 to 74
Manganese (Mn), % 0 to 1.0
0 to 1.0
Nickel (Ni), % 3.0 to 5.0
0 to 4.0
Niobium (Nb), % 0.15 to 0.45
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.5
Sulfur (S), % 0 to 0.030
0 to 0.040