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S32550 Stainless Steel vs. S13800 Stainless Steel

Both S32550 stainless steel and S13800 stainless steel are iron alloys. They have 83% of their average alloy composition in common.

For each property being compared, the top bar is S32550 stainless steel and the bottom bar is S13800 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 260
290 to 480
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 21
11 to 18
Fatigue Strength, MPa 400
410 to 870
Poisson's Ratio 0.27
0.28
Reduction in Area, % 57
39 to 62
Rockwell C Hardness 28
30 to 51
Shear Modulus, GPa 80
77
Shear Strength, MPa 540
610 to 1030
Tensile Strength: Ultimate (UTS), MPa 860
980 to 1730
Tensile Strength: Yield (Proof), MPa 620
660 to 1580

Thermal Properties

Latent Heat of Fusion, J/g 300
280
Maximum Temperature: Corrosion, °C 450
390
Maximum Temperature: Mechanical, °C 1100
810
Melting Completion (Liquidus), °C 1440
1450
Melting Onset (Solidus), °C 1390
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 16
16
Thermal Expansion, µm/m-K 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 20
15
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 3.8
3.4
Embodied Energy, MJ/kg 53
46
Embodied Water, L/kg 180
140

Common Calculations

PREN (Pitting Resistance) 40
21
Resilience: Ultimate (Unit Rupture Work), MJ/m3 160
150 to 190
Resilience: Unit (Modulus of Resilience), kJ/m3 940
1090 to 5490
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 31
35 to 61
Strength to Weight: Bending, points 26
28 to 41
Thermal Diffusivity, mm2/s 4.4
4.3
Thermal Shock Resistance, points 23
33 to 58

Alloy Composition

Aluminum (Al), % 0
0.9 to 1.4
Carbon (C), % 0 to 0.040
0 to 0.050
Chromium (Cr), % 24 to 27
12.3 to 13.2
Copper (Cu), % 1.5 to 2.5
0
Iron (Fe), % 57.2 to 67
73.6 to 77.3
Manganese (Mn), % 0 to 1.5
0 to 0.2
Molybdenum (Mo), % 2.9 to 3.9
2.0 to 3.0
Nickel (Ni), % 4.5 to 6.5
7.5 to 8.5
Nitrogen (N), % 0.1 to 0.25
0 to 0.010
Phosphorus (P), % 0 to 0.040
0 to 0.010
Silicon (Si), % 0 to 1.0
0 to 0.1
Sulfur (S), % 0 to 0.030
0 to 0.0080