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S20161 Stainless Steel vs. AISI 429 Stainless Steel

Both S20161 stainless steel and AISI 429 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 86% of their average alloy composition in common. There are 34 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is S20161 stainless steel and the bottom bar is AISI 429 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 250
160
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 46
25
Fatigue Strength, MPa 360
180
Poisson's Ratio 0.28
0.28
Reduction in Area, % 45
50
Shear Modulus, GPa 76
77
Shear Strength, MPa 690
300
Tensile Strength: Ultimate (UTS), MPa 980
480
Tensile Strength: Yield (Proof), MPa 390
260

Thermal Properties

Latent Heat of Fusion, J/g 330
280
Maximum Temperature: Corrosion, °C 410
400
Maximum Temperature: Mechanical, °C 870
810
Melting Completion (Liquidus), °C 1380
1440
Melting Onset (Solidus), °C 1330
1400
Specific Heat Capacity, J/kg-K 490
480
Thermal Conductivity, W/m-K 15
26
Thermal Expansion, µm/m-K 16
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.5
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
3.4

Otherwise Unclassified Properties

Base Metal Price, % relative 12
7.5
Density, g/cm3 7.5
7.7
Embodied Carbon, kg CO2/kg material 2.7
2.0
Embodied Energy, MJ/kg 39
28
Embodied Water, L/kg 130
110

Common Calculations

PREN (Pitting Resistance) 19
15
Resilience: Ultimate (Unit Rupture Work), MJ/m3 360
99
Resilience: Unit (Modulus of Resilience), kJ/m3 390
170
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 26
25
Strength to Weight: Axial, points 36
17
Strength to Weight: Bending, points 29
18
Thermal Diffusivity, mm2/s 4.0
6.9
Thermal Shock Resistance, points 22
17

Alloy Composition

Carbon (C), % 0 to 0.15
0 to 0.12
Chromium (Cr), % 15 to 18
14 to 16
Iron (Fe), % 65.6 to 73.9
81.8 to 86
Manganese (Mn), % 4.0 to 6.0
0 to 1.0
Nickel (Ni), % 4.0 to 6.0
0
Nitrogen (N), % 0.080 to 0.2
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 3.0 to 4.0
0 to 1.0
Sulfur (S), % 0 to 0.040
0 to 0.030