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EN 1.4901 Stainless Steel vs. S17400 Stainless Steel

Both EN 1.4901 stainless steel and S17400 stainless steel are iron alloys. They have 85% of their average alloy composition in common. There are 33 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 EN 1.4901 stainless steel and the bottom bar is S17400 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 19
11 to 21
Fatigue Strength, MPa 310
380 to 670
Impact Strength: V-Notched Charpy, J 38
7.6 to 86
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
75
Shear Strength, MPa 460
570 to 830
Tensile Strength: Ultimate (UTS), MPa 740
910 to 1390
Tensile Strength: Yield (Proof), MPa 490
580 to 1250

Thermal Properties

Latent Heat of Fusion, J/g 260
280
Maximum Temperature: Corrosion, °C 380
450
Maximum Temperature: Mechanical, °C 650
850
Melting Completion (Liquidus), °C 1490
1440
Melting Onset (Solidus), °C 1450
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 26
17
Thermal Expansion, µm/m-K 12
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.2
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 9.3
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 11
14
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 2.8
2.7
Embodied Energy, MJ/kg 40
39
Embodied Water, L/kg 89
130

Common Calculations

PREN (Pitting Resistance) 14
16
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
140 to 160
Resilience: Unit (Modulus of Resilience), kJ/m3 620
880 to 4060
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 26
32 to 49
Strength to Weight: Bending, points 23
27 to 35
Thermal Diffusivity, mm2/s 6.9
4.5
Thermal Shock Resistance, points 23
30 to 46

Alloy Composition

Aluminum (Al), % 0 to 0.020
0
Boron (B), % 0.0010 to 0.0060
0
Carbon (C), % 0.070 to 0.13
0 to 0.070
Chromium (Cr), % 8.5 to 9.5
15 to 17
Copper (Cu), % 0
3.0 to 5.0
Iron (Fe), % 85.8 to 89.1
70.4 to 78.9
Manganese (Mn), % 0.3 to 0.6
0 to 1.0
Molybdenum (Mo), % 0.3 to 0.6
0
Nickel (Ni), % 0 to 0.4
3.0 to 5.0
Niobium (Nb), % 0.040 to 0.090
0.15 to 0.45
Nitrogen (N), % 0.030 to 0.070
0
Phosphorus (P), % 0 to 0.020
0 to 0.040
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.010
0 to 0.030
Titanium (Ti), % 0 to 0.010
0
Tungsten (W), % 1.5 to 2.0
0
Vanadium (V), % 0.15 to 0.25
0
Zirconium (Zr), % 0 to 0.010
0