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AISI 310Cb Stainless Steel vs. AISI 302B Stainless Steel

Both AISI 310Cb stainless steel and AISI 302B stainless steel are iron alloys. Both are furnished in the annealed condition. They have 81% of their average alloy composition in common.

For each property being compared, the top bar is AISI 310Cb stainless steel and the bottom bar is AISI 302B stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
190
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 39
45
Fatigue Strength, MPa 200
210
Poisson's Ratio 0.28
0.28
Reduction in Area, % 46
57
Rockwell B Hardness 84
84
Shear Modulus, GPa 78
76
Shear Strength, MPa 390
410
Tensile Strength: Ultimate (UTS), MPa 580
580
Tensile Strength: Yield (Proof), MPa 230
230

Thermal Properties

Latent Heat of Fusion, J/g 310
320
Maximum Temperature: Corrosion, °C 520
410
Maximum Temperature: Mechanical, °C 1100
930
Melting Completion (Liquidus), °C 1410
1400
Melting Onset (Solidus), °C 1360
1360
Specific Heat Capacity, J/kg-K 480
490
Thermal Conductivity, W/m-K 15
17
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
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 28
15
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 4.8
3.0
Embodied Energy, MJ/kg 69
43
Embodied Water, L/kg 190
140

Common Calculations

PREN (Pitting Resistance) 25
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
210
Resilience: Unit (Modulus of Resilience), kJ/m3 140
140
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 20
21
Strength to Weight: Bending, points 20
20
Thermal Diffusivity, mm2/s 3.9
4.4
Thermal Shock Resistance, points 13
13

Alloy Composition

Carbon (C), % 0 to 0.080
0 to 0.15
Chromium (Cr), % 24 to 26
17 to 19
Iron (Fe), % 47.2 to 57
65.7 to 73
Manganese (Mn), % 0 to 2.0
0 to 2.0
Nickel (Ni), % 19 to 22
8.0 to 10
Niobium (Nb), % 0 to 1.1
0
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0 to 0.045
0 to 0.045
Silicon (Si), % 0 to 1.5
2.0 to 3.0
Sulfur (S), % 0 to 0.030
0 to 0.030