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S17400 Stainless Steel vs. AISI 317L Stainless Steel

Both S17400 stainless steel and AISI 317L stainless steel are iron alloys. They have 84% of their average alloy composition in common. There are 34 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is S17400 stainless steel and the bottom bar is AISI 317L stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 280 to 440
180
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 11 to 21
44
Fatigue Strength, MPa 380 to 670
220
Poisson's Ratio 0.28
0.28
Reduction in Area, % 40 to 62
56
Shear Modulus, GPa 75
82
Shear Strength, MPa 570 to 830
380
Tensile Strength: Ultimate (UTS), MPa 910 to 1390
550
Tensile Strength: Yield (Proof), MPa 580 to 1250
250

Thermal Properties

Latent Heat of Fusion, J/g 280
290
Maximum Temperature: Corrosion, °C 450
420
Maximum Temperature: Mechanical, °C 850
1010
Melting Completion (Liquidus), °C 1440
1400
Melting Onset (Solidus), °C 1400
1380
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 17
14
Thermal Expansion, µm/m-K 11
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 14
21
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 2.7
4.3
Embodied Energy, MJ/kg 39
59
Embodied Water, L/kg 130
160

Common Calculations

PREN (Pitting Resistance) 16
31
Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 160
200
Resilience: Unit (Modulus of Resilience), kJ/m3 880 to 4060
150
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 32 to 49
19
Strength to Weight: Bending, points 27 to 35
19
Thermal Diffusivity, mm2/s 4.5
3.8
Thermal Shock Resistance, points 30 to 46
12

Alloy Composition

Carbon (C), % 0 to 0.070
0 to 0.030
Chromium (Cr), % 15 to 17
18 to 20
Copper (Cu), % 3.0 to 5.0
0
Iron (Fe), % 70.4 to 78.9
58 to 68
Manganese (Mn), % 0 to 1.0
0 to 2.0
Molybdenum (Mo), % 0
3.0 to 4.0
Nickel (Ni), % 3.0 to 5.0
11 to 15
Niobium (Nb), % 0.15 to 0.45
0
Nitrogen (N), % 0
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 0.030
0 to 0.030