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S31060 Stainless Steel vs. AISI 309HCb Stainless Steel

Both S31060 stainless steel and AISI 309HCb stainless steel are iron alloys. Both are furnished in the annealed condition. They have a very high 96% of their average alloy composition in common.

For each property being compared, the top bar is S31060 stainless steel and the bottom bar is AISI 309HCb stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
190
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 46
46
Fatigue Strength, MPa 290
210
Poisson's Ratio 0.27
0.28
Rockwell B Hardness 82
82
Shear Modulus, GPa 78
78
Shear Strength, MPa 480
410
Tensile Strength: Ultimate (UTS), MPa 680
590
Tensile Strength: Yield (Proof), MPa 310
230

Thermal Properties

Latent Heat of Fusion, J/g 290
300
Maximum Temperature: Corrosion, °C 440
510
Maximum Temperature: Mechanical, °C 1080
1090
Melting Completion (Liquidus), °C 1420
1420
Melting Onset (Solidus), °C 1370
1380
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
15
Thermal Expansion, µm/m-K 16
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 18
23
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.4
4.1
Embodied Energy, MJ/kg 48
59
Embodied Water, L/kg 170
170

Common Calculations

PREN (Pitting Resistance) 26
23
Resilience: Ultimate (Unit Rupture Work), MJ/m3 260
210
Resilience: Unit (Modulus of Resilience), kJ/m3 250
130
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 24
21
Strength to Weight: Bending, points 22
20
Thermal Diffusivity, mm2/s 4.0
4.0
Thermal Shock Resistance, points 15
13

Alloy Composition

Boron (B), % 0.0010 to 0.010
0
Carbon (C), % 0.050 to 0.1
0.040 to 0.1
Cerium (Ce), % 0 to 0.070
0
Chromium (Cr), % 22 to 24
22 to 24
Iron (Fe), % 61.4 to 67.8
56 to 66
Lanthanum (La), % 0 to 0.070
0
Manganese (Mn), % 0 to 1.0
0 to 2.0
Nickel (Ni), % 10 to 12.5
12 to 16
Niobium (Nb), % 0
0 to 1.1
Nitrogen (N), % 0.18 to 0.25
0
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 0.5
0 to 0.75
Sulfur (S), % 0 to 0.030
0 to 0.030