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ACI-ASTM CK35MN Steel vs. S17400 Stainless Steel

Both ACI-ASTM CK35MN steel and S17400 stainless steel are iron alloys. They have 69% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CK35MN steel and the bottom bar is S17400 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
280 to 440
Elastic (Young's, Tensile) Modulus, GPa 210
190
Elongation at Break, % 40
11 to 21
Fatigue Strength, MPa 270
380 to 670
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 81
75
Tensile Strength: Ultimate (UTS), MPa 650
910 to 1390
Tensile Strength: Yield (Proof), MPa 310
580 to 1250

Thermal Properties

Latent Heat of Fusion, J/g 310
280
Maximum Temperature: Corrosion, °C 440
450
Maximum Temperature: Mechanical, °C 1100
850
Melting Completion (Liquidus), °C 1460
1440
Melting Onset (Solidus), °C 1410
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 12
17
Thermal Expansion, µm/m-K 16
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.1
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 31
14
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 5.9
2.7
Embodied Energy, MJ/kg 81
39
Embodied Water, L/kg 210
130

Common Calculations

PREN (Pitting Resistance) 48
16
Resilience: Ultimate (Unit Rupture Work), MJ/m3 210
140 to 160
Resilience: Unit (Modulus of Resilience), kJ/m3 240
880 to 4060
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 22
32 to 49
Strength to Weight: Bending, points 21
27 to 35
Thermal Diffusivity, mm2/s 3.3
4.5
Thermal Shock Resistance, points 14
30 to 46

Alloy Composition

Carbon (C), % 0 to 0.035
0 to 0.070
Chromium (Cr), % 22 to 24
15 to 17
Copper (Cu), % 0 to 0.4
3.0 to 5.0
Iron (Fe), % 43.4 to 51.8
70.4 to 78.9
Manganese (Mn), % 0 to 2.0
0 to 1.0
Molybdenum (Mo), % 6.0 to 6.8
0
Nickel (Ni), % 20 to 22
3.0 to 5.0
Niobium (Nb), % 0
0.15 to 0.45
Nitrogen (N), % 0.21 to 0.32
0
Phosphorus (P), % 0 to 0.035
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.020
0 to 0.030