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N08135 Stainless Steel vs. ACI-ASTM CN7M Steel

Both N08135 stainless steel and ACI-ASTM CN7M steel are iron alloys. They have 90% of their average alloy composition in common. There are 27 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is N08135 stainless steel and the bottom bar is ACI-ASTM CN7M steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 46
44
Fatigue Strength, MPa 220
190
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 80
77
Tensile Strength: Ultimate (UTS), MPa 570
480
Tensile Strength: Yield (Proof), MPa 240
200

Thermal Properties

Latent Heat of Fusion, J/g 310
310
Maximum Temperature: Corrosion, °C 430
430
Maximum Temperature: Mechanical, °C 1100
1100
Melting Completion (Liquidus), °C 1440
1410
Melting Onset (Solidus), °C 1390
1450
Specific Heat Capacity, J/kg-K 460
470
Thermal Expansion, µm/m-K 16
15

Otherwise Unclassified Properties

Base Metal Price, % relative 39
32
Density, g/cm3 8.2
8.1
Embodied Carbon, kg CO2/kg material 6.8
5.6
Embodied Energy, MJ/kg 94
78
Embodied Water, L/kg 220
210

Common Calculations

PREN (Pitting Resistance) 38
29
Resilience: Ultimate (Unit Rupture Work), MJ/m3 210
170
Resilience: Unit (Modulus of Resilience), kJ/m3 140
110
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 19
17
Strength to Weight: Bending, points 19
17
Thermal Shock Resistance, points 13
12

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.070
Chromium (Cr), % 20.5 to 23.5
19 to 22
Copper (Cu), % 0 to 0.7
3.0 to 4.0
Iron (Fe), % 30.2 to 42.3
37.4 to 48.5
Manganese (Mn), % 0 to 1.0
0 to 1.5
Molybdenum (Mo), % 4.0 to 5.0
2.0 to 3.0
Nickel (Ni), % 33 to 38
27.5 to 30.5
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0 to 0.75
0 to 1.5
Sulfur (S), % 0 to 0.030
0 to 0.040
Tungsten (W), % 0.2 to 0.8
0