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S40930 Stainless Steel vs. AISI 317 Stainless Steel

Both S40930 stainless steel and AISI 317 stainless steel are iron alloys. They have 75% of their average alloy composition in common. There are 33 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is S40930 stainless steel and the bottom bar is AISI 317 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
170 to 220
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 23
35 to 55
Fatigue Strength, MPa 130
250 to 330
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 75
79
Shear Strength, MPa 270
420 to 470
Tensile Strength: Ultimate (UTS), MPa 430
580 to 710
Tensile Strength: Yield (Proof), MPa 190
250 to 420

Thermal Properties

Latent Heat of Fusion, J/g 270
290
Maximum Temperature: Corrosion, °C 460
420
Maximum Temperature: Mechanical, °C 710
590
Melting Completion (Liquidus), °C 1450
1400
Melting Onset (Solidus), °C 1410
1380
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 25
15
Thermal Expansion, µm/m-K 10
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 8.5
21
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 2.3
4.3
Embodied Energy, MJ/kg 32
59
Embodied Water, L/kg 94
160

Common Calculations

PREN (Pitting Resistance) 11
31
Resilience: Ultimate (Unit Rupture Work), MJ/m3 80
210 to 260
Resilience: Unit (Modulus of Resilience), kJ/m3 94
150 to 430
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 16
20 to 25
Strength to Weight: Bending, points 16
20 to 22
Thermal Diffusivity, mm2/s 6.7
4.1
Thermal Shock Resistance, points 16
12 to 15

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.080
Chromium (Cr), % 10.5 to 11.7
18 to 20
Iron (Fe), % 84.7 to 89.4
58 to 68
Manganese (Mn), % 0 to 1.0
0 to 2.0
Molybdenum (Mo), % 0
3.0 to 4.0
Nickel (Ni), % 0 to 0.5
11 to 15
Niobium (Nb), % 0.080 to 0.75
0
Nitrogen (N), % 0 to 0.030
0 to 0.1
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 1.0
0 to 0.75
Sulfur (S), % 0 to 0.020
0 to 0.030
Titanium (Ti), % 0.050 to 0.2
0