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S17400 Stainless Steel vs. AISI 317LMN Stainless Steel

Both S17400 stainless steel and AISI 317LMN stainless steel are iron alloys. They have 81% 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 317LMN stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 280 to 440
190
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 11 to 21
45
Fatigue Strength, MPa 380 to 670
250
Poisson's Ratio 0.28
0.28
Reduction in Area, % 40 to 62
56
Shear Modulus, GPa 75
79
Shear Strength, MPa 570 to 830
430
Tensile Strength: Ultimate (UTS), MPa 910 to 1390
620
Tensile Strength: Yield (Proof), MPa 580 to 1250
270

Thermal Properties

Latent Heat of Fusion, J/g 280
290
Maximum Temperature: Corrosion, °C 450
420
Maximum Temperature: Mechanical, °C 850
1020
Melting Completion (Liquidus), °C 1440
1460
Melting Onset (Solidus), °C 1400
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 17
14
Thermal Expansion, µm/m-K 11
16

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
24
Density, g/cm3 7.8
8.0
Embodied Carbon, kg CO2/kg material 2.7
4.8
Embodied Energy, MJ/kg 39
65
Embodied Water, L/kg 130
170

Common Calculations

PREN (Pitting Resistance) 16
36
Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 160
230
Resilience: Unit (Modulus of Resilience), kJ/m3 880 to 4060
180
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 32 to 49
22
Strength to Weight: Bending, points 27 to 35
20
Thermal Diffusivity, mm2/s 4.5
3.8
Thermal Shock Resistance, points 30 to 46
14

Alloy Composition

Carbon (C), % 0 to 0.070
0 to 0.030
Chromium (Cr), % 15 to 17
17 to 20
Copper (Cu), % 3.0 to 5.0
0
Iron (Fe), % 70.4 to 78.9
54.4 to 65.4
Manganese (Mn), % 0 to 1.0
0 to 2.0
Molybdenum (Mo), % 0
4.0 to 5.0
Nickel (Ni), % 3.0 to 5.0
13.5 to 17.5
Niobium (Nb), % 0.15 to 0.45
0
Nitrogen (N), % 0
0.1 to 0.2
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