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N08135 Stainless Steel vs. S21640 Stainless Steel

Both N08135 stainless steel and S21640 stainless steel are iron alloys. They have 62% 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 N08135 stainless steel and the bottom bar is S21640 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 46
46
Fatigue Strength, MPa 220
320
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 80
78
Shear Strength, MPa 400
520
Tensile Strength: Ultimate (UTS), MPa 570
740
Tensile Strength: Yield (Proof), MPa 240
350

Thermal Properties

Latent Heat of Fusion, J/g 310
290
Maximum Temperature: Corrosion, °C 430
490
Maximum Temperature: Mechanical, °C 1100
940
Melting Completion (Liquidus), °C 1440
1430
Melting Onset (Solidus), °C 1390
1380
Specific Heat Capacity, J/kg-K 460
480
Thermal Expansion, µm/m-K 16
17

Otherwise Unclassified Properties

Base Metal Price, % relative 39
17
Density, g/cm3 8.2
7.7
Embodied Carbon, kg CO2/kg material 6.8
3.6
Embodied Energy, MJ/kg 94
51
Embodied Water, L/kg 220
150

Common Calculations

PREN (Pitting Resistance) 38
26
Resilience: Ultimate (Unit Rupture Work), MJ/m3 210
280
Resilience: Unit (Modulus of Resilience), kJ/m3 140
300
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 19
27
Strength to Weight: Bending, points 19
23
Thermal Shock Resistance, points 13
16

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.080
Chromium (Cr), % 20.5 to 23.5
17.5 to 19.5
Copper (Cu), % 0 to 0.7
0
Iron (Fe), % 30.2 to 42.3
63 to 74.3
Manganese (Mn), % 0 to 1.0
3.5 to 6.5
Molybdenum (Mo), % 4.0 to 5.0
0.5 to 2.0
Nickel (Ni), % 33 to 38
4.0 to 6.5
Niobium (Nb), % 0
0.1 to 1.0
Nitrogen (N), % 0
0.080 to 0.3
Phosphorus (P), % 0 to 0.030
0 to 0.060
Silicon (Si), % 0 to 0.75
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 0.2 to 0.8
0