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ACI-ASTM CN7M Steel vs. S17600 Stainless Steel

Both ACI-ASTM CN7M steel and S17600 stainless steel are iron alloys. They have 68% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CN7M steel and the bottom bar is S17600 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
270 to 410
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 44
8.6 to 11
Fatigue Strength, MPa 190
300 to 680
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
76
Tensile Strength: Ultimate (UTS), MPa 480
940 to 1490
Tensile Strength: Yield (Proof), MPa 200
580 to 1310

Thermal Properties

Latent Heat of Fusion, J/g 310
290
Maximum Temperature: Corrosion, °C 430
550
Maximum Temperature: Mechanical, °C 1100
890
Melting Completion (Liquidus), °C 1410
1430
Melting Onset (Solidus), °C 1450
1390
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 21
15
Thermal Expansion, µm/m-K 15
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.6
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 1.8
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 32
13
Density, g/cm3 8.1
7.8
Embodied Carbon, kg CO2/kg material 5.6
2.9
Embodied Energy, MJ/kg 78
42
Embodied Water, L/kg 210
130

Common Calculations

PREN (Pitting Resistance) 29
17
Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
70 to 150
Resilience: Unit (Modulus of Resilience), kJ/m3 110
850 to 4390
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 17
34 to 54
Strength to Weight: Bending, points 17
28 to 37
Thermal Diffusivity, mm2/s 5.6
4.1
Thermal Shock Resistance, points 12
31 to 50

Alloy Composition

Aluminum (Al), % 0
0 to 0.4
Carbon (C), % 0 to 0.070
0 to 0.080
Chromium (Cr), % 19 to 22
16 to 17.5
Copper (Cu), % 3.0 to 4.0
0
Iron (Fe), % 37.4 to 48.5
71.3 to 77.6
Manganese (Mn), % 0 to 1.5
0 to 1.0
Molybdenum (Mo), % 2.0 to 3.0
0
Nickel (Ni), % 27.5 to 30.5
6.0 to 7.5
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.5
0 to 1.0
Sulfur (S), % 0 to 0.040
0 to 0.030
Titanium (Ti), % 0
0.4 to 1.2