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AISI 302B Stainless Steel vs. AISI 317 Stainless Steel

Both AISI 302B stainless steel and AISI 317 stainless steel are iron alloys. They have a moderately high 92% of their average alloy composition in common. There are 33 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 AISI 302B stainless steel and the bottom bar is AISI 317 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
170 to 220
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 45
35 to 55
Fatigue Strength, MPa 210
250 to 330
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
79
Shear Strength, MPa 410
420 to 470
Tensile Strength: Ultimate (UTS), MPa 580
580 to 710
Tensile Strength: Yield (Proof), MPa 230
250 to 420

Thermal Properties

Latent Heat of Fusion, J/g 320
290
Maximum Temperature: Corrosion, °C 410
420
Maximum Temperature: Mechanical, °C 930
590
Melting Completion (Liquidus), °C 1400
1400
Melting Onset (Solidus), °C 1360
1380
Specific Heat Capacity, J/kg-K 490
470
Thermal Conductivity, W/m-K 17
15
Thermal Expansion, µm/m-K 16
17

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 15
21
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 3.0
4.3
Embodied Energy, MJ/kg 43
59
Embodied Water, L/kg 140
160

Common Calculations

PREN (Pitting Resistance) 19
31
Resilience: Ultimate (Unit Rupture Work), MJ/m3 210
210 to 260
Resilience: Unit (Modulus of Resilience), kJ/m3 140
150 to 430
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 21
20 to 25
Strength to Weight: Bending, points 20
20 to 22
Thermal Diffusivity, mm2/s 4.4
4.1
Thermal Shock Resistance, points 13
12 to 15

Alloy Composition

Carbon (C), % 0 to 0.15
0 to 0.080
Chromium (Cr), % 17 to 19
18 to 20
Iron (Fe), % 65.7 to 73
58 to 68
Manganese (Mn), % 0 to 2.0
0 to 2.0
Molybdenum (Mo), % 0
3.0 to 4.0
Nickel (Ni), % 8.0 to 10
11 to 15
Nitrogen (N), % 0 to 0.1
0 to 0.1
Phosphorus (P), % 0 to 0.045
0 to 0.045
Silicon (Si), % 2.0 to 3.0
0 to 0.75
Sulfur (S), % 0 to 0.030
0 to 0.030