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EN 1.4317 Stainless Steel vs. EN 1.7383 Steel

Both EN 1.4317 stainless steel and EN 1.7383 steel are iron alloys. They have 85% of their average alloy composition in common. There are 31 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 1.4317 stainless steel and the bottom bar is EN 1.7383 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 17
20 to 23
Fatigue Strength, MPa 380
210 to 270
Impact Strength: V-Notched Charpy, J 56
38
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
74
Tensile Strength: Ultimate (UTS), MPa 860
560 to 610
Tensile Strength: Yield (Proof), MPa 630
300 to 400

Thermal Properties

Latent Heat of Fusion, J/g 280
260
Maximum Temperature: Mechanical, °C 770
460
Melting Completion (Liquidus), °C 1440
1470
Melting Onset (Solidus), °C 1400
1430
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 26
39
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.7
7.7
Electrical Conductivity: Equal Weight (Specific), % IACS 3.2
8.8

Otherwise Unclassified Properties

Base Metal Price, % relative 10
3.9
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 2.4
1.8
Embodied Energy, MJ/kg 33
23
Embodied Water, L/kg 110
59

Common Calculations

PREN (Pitting Resistance) 14
5.6
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
110
Resilience: Unit (Modulus of Resilience), kJ/m3 1010
240 to 420
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 31
20 to 22
Strength to Weight: Bending, points 26
19 to 20
Thermal Diffusivity, mm2/s 7.0
11
Thermal Shock Resistance, points 30
16 to 18

Alloy Composition

Aluminum (Al), % 0
0 to 0.040
Carbon (C), % 0 to 0.060
0.080 to 0.15
Chromium (Cr), % 12 to 13.5
2.0 to 2.5
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 78.7 to 84.5
94.3 to 96.6
Manganese (Mn), % 0 to 1.0
0.4 to 0.8
Molybdenum (Mo), % 0 to 0.7
0.9 to 1.1
Nickel (Ni), % 3.5 to 5.0
0 to 0.3
Phosphorus (P), % 0 to 0.035
0 to 0.025
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.025
0 to 0.010