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S17400 Stainless Steel vs. EN 1.4020 Stainless Steel

Both S17400 stainless steel and EN 1.4020 stainless steel are iron alloys. They have 86% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is S17400 stainless steel and the bottom bar is EN 1.4020 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 280 to 440
190 to 340
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 11 to 21
13 to 34
Fatigue Strength, MPa 380 to 670
340 to 540
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 75
77
Shear Strength, MPa 570 to 830
510 to 680
Tensile Strength: Ultimate (UTS), MPa 910 to 1390
770 to 1130
Tensile Strength: Yield (Proof), MPa 580 to 1250
430 to 950

Thermal Properties

Latent Heat of Fusion, J/g 280
280
Maximum Temperature: Corrosion, °C 450
410
Maximum Temperature: Mechanical, °C 850
890
Melting Completion (Liquidus), °C 1440
1390
Melting Onset (Solidus), °C 1400
1350
Specific Heat Capacity, J/kg-K 480
480
Thermal Expansion, µm/m-K 11
17

Otherwise Unclassified Properties

Base Metal Price, % relative 14
11
Density, g/cm3 7.8
7.6
Embodied Carbon, kg CO2/kg material 2.7
2.5
Embodied Energy, MJ/kg 39
37
Embodied Water, L/kg 130
150

Common Calculations

PREN (Pitting Resistance) 16
23
Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 160
140 to 220
Resilience: Unit (Modulus of Resilience), kJ/m3 880 to 4060
460 to 2290
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 32 to 49
28 to 41
Strength to Weight: Bending, points 27 to 35
25 to 32
Thermal Shock Resistance, points 30 to 46
16 to 23

Alloy Composition

Carbon (C), % 0 to 0.070
0 to 0.15
Chromium (Cr), % 15 to 17
16.5 to 19
Copper (Cu), % 3.0 to 5.0
0
Iron (Fe), % 70.4 to 78.9
62.8 to 71.8
Manganese (Mn), % 0 to 1.0
11 to 14
Nickel (Ni), % 3.0 to 5.0
0.5 to 2.5
Niobium (Nb), % 0.15 to 0.45
0
Nitrogen (N), % 0
0.2 to 0.45
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030