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S20432 Stainless Steel vs. S35115 Stainless Steel

Both S20432 stainless steel and S35115 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 75% of their average alloy composition in common.

For each property being compared, the top bar is S20432 stainless steel and the bottom bar is S35115 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
210
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 45
46
Fatigue Strength, MPa 210
280
Poisson's Ratio 0.28
0.28
Rockwell B Hardness 81
86
Shear Modulus, GPa 76
79
Shear Strength, MPa 400
470
Tensile Strength: Ultimate (UTS), MPa 580
670
Tensile Strength: Yield (Proof), MPa 230
310

Thermal Properties

Latent Heat of Fusion, J/g 280
310
Maximum Temperature: Corrosion, °C 410
440
Maximum Temperature: Mechanical, °C 900
1100
Melting Completion (Liquidus), °C 1410
1420
Melting Onset (Solidus), °C 1370
1370
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
15
Thermal Expansion, µm/m-K 17
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.8
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 13
26
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 2.7
4.8
Embodied Energy, MJ/kg 38
67
Embodied Water, L/kg 140
190

Common Calculations

PREN (Pitting Resistance) 20
35
Resilience: Ultimate (Unit Rupture Work), MJ/m3 210
250
Resilience: Unit (Modulus of Resilience), kJ/m3 140
240
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 21
24
Strength to Weight: Bending, points 20
22
Thermal Diffusivity, mm2/s 4.0
3.9
Thermal Shock Resistance, points 13
15

Alloy Composition

Carbon (C), % 0 to 0.080
0 to 0.030
Chromium (Cr), % 17 to 18
23 to 25
Copper (Cu), % 2.0 to 3.0
0
Iron (Fe), % 66.7 to 74
47.6 to 55.8
Manganese (Mn), % 3.0 to 5.0
0 to 1.0
Molybdenum (Mo), % 0
1.5 to 2.5
Nickel (Ni), % 4.0 to 6.0
19 to 22
Nitrogen (N), % 0.050 to 0.2
0.2 to 0.3
Phosphorus (P), % 0 to 0.045
0 to 0.045
Silicon (Si), % 0 to 1.0
0.5 to 1.5
Sulfur (S), % 0 to 0.030
0 to 0.015