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S20161 Stainless Steel vs. S17400 Stainless Steel

Both S20161 stainless steel and S17400 stainless steel are iron alloys. They have a moderately high 91% of their average alloy composition in common. There are 35 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 S20161 stainless steel and the bottom bar is S17400 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 250
280 to 440
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 46
11 to 21
Fatigue Strength, MPa 360
380 to 670
Poisson's Ratio 0.28
0.28
Reduction in Area, % 45
40 to 62
Rockwell C Hardness 22
27 to 43
Shear Modulus, GPa 76
75
Shear Strength, MPa 690
570 to 830
Tensile Strength: Ultimate (UTS), MPa 980
910 to 1390
Tensile Strength: Yield (Proof), MPa 390
580 to 1250

Thermal Properties

Latent Heat of Fusion, J/g 330
280
Maximum Temperature: Corrosion, °C 410
450
Maximum Temperature: Mechanical, °C 870
850
Melting Completion (Liquidus), °C 1380
1440
Melting Onset (Solidus), °C 1330
1400
Specific Heat Capacity, J/kg-K 490
480
Thermal Conductivity, W/m-K 15
17
Thermal Expansion, µm/m-K 16
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.5
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 12
14
Density, g/cm3 7.5
7.8
Embodied Carbon, kg CO2/kg material 2.7
2.7
Embodied Energy, MJ/kg 39
39
Embodied Water, L/kg 130
130

Common Calculations

PREN (Pitting Resistance) 19
16
Resilience: Ultimate (Unit Rupture Work), MJ/m3 360
140 to 160
Resilience: Unit (Modulus of Resilience), kJ/m3 390
880 to 4060
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 26
25
Strength to Weight: Axial, points 36
32 to 49
Strength to Weight: Bending, points 29
27 to 35
Thermal Diffusivity, mm2/s 4.0
4.5
Thermal Shock Resistance, points 22
30 to 46

Alloy Composition

Carbon (C), % 0 to 0.15
0 to 0.070
Chromium (Cr), % 15 to 18
15 to 17
Copper (Cu), % 0
3.0 to 5.0
Iron (Fe), % 65.6 to 73.9
70.4 to 78.9
Manganese (Mn), % 4.0 to 6.0
0 to 1.0
Nickel (Ni), % 4.0 to 6.0
3.0 to 5.0
Niobium (Nb), % 0
0.15 to 0.45
Nitrogen (N), % 0.080 to 0.2
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 3.0 to 4.0
0 to 1.0
Sulfur (S), % 0 to 0.040
0 to 0.030