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S17400 Stainless Steel vs. EN 1.1170 Steel

Both S17400 stainless steel and EN 1.1170 steel are iron alloys. They have 76% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is S17400 stainless steel and the bottom bar is EN 1.1170 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 280 to 440
180 to 210
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 11 to 21
16 to 17
Fatigue Strength, MPa 380 to 670
220 to 330
Impact Strength: V-Notched Charpy, J 7.6 to 86
28 to 35
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 75
73
Shear Strength, MPa 570 to 830
390 to 450
Tensile Strength: Ultimate (UTS), MPa 910 to 1390
640 to 730
Tensile Strength: Yield (Proof), MPa 580 to 1250
330 to 500

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Maximum Temperature: Mechanical, °C 850
400
Melting Completion (Liquidus), °C 1440
1460
Melting Onset (Solidus), °C 1400
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 17
50
Thermal Expansion, µm/m-K 11
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 14
2.1
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.7
1.5
Embodied Energy, MJ/kg 39
19
Embodied Water, L/kg 130
49

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 160
91 to 100
Resilience: Unit (Modulus of Resilience), kJ/m3 880 to 4060
290 to 670
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 32 to 49
23 to 26
Strength to Weight: Bending, points 27 to 35
21 to 23
Thermal Diffusivity, mm2/s 4.5
13
Thermal Shock Resistance, points 30 to 46
20 to 23

Alloy Composition

Carbon (C), % 0 to 0.070
0.25 to 0.32
Chromium (Cr), % 15 to 17
0 to 0.4
Copper (Cu), % 3.0 to 5.0
0
Iron (Fe), % 70.4 to 78.9
96.7 to 98.5
Manganese (Mn), % 0 to 1.0
1.3 to 1.7
Molybdenum (Mo), % 0
0 to 0.1
Nickel (Ni), % 3.0 to 5.0
0 to 0.4
Niobium (Nb), % 0.15 to 0.45
0
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0 to 1.0
0 to 0.4
Sulfur (S), % 0 to 0.030
0 to 0.035