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EN 1.7386 Steel vs. AISI 303 Stainless Steel

Both EN 1.7386 steel and AISI 303 stainless steel are iron alloys. They have 81% of their average alloy composition in common. There are 32 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 1.7386 steel and the bottom bar is AISI 303 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170 to 200
170 to 210
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 18 to 21
40 to 51
Fatigue Strength, MPa 170 to 290
230 to 360
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 75
77
Shear Strength, MPa 340 to 410
430 to 470
Tensile Strength: Ultimate (UTS), MPa 550 to 670
600 to 690
Tensile Strength: Yield (Proof), MPa 240 to 440
230 to 420

Thermal Properties

Latent Heat of Fusion, J/g 270
290
Maximum Temperature: Mechanical, °C 600
930
Melting Completion (Liquidus), °C 1450
1450
Melting Onset (Solidus), °C 1410
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 26
16
Thermal Expansion, µm/m-K 13
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.0
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 10
2.8

Otherwise Unclassified Properties

Base Metal Price, % relative 6.5
15
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.0
3.0
Embodied Energy, MJ/kg 28
42
Embodied Water, L/kg 88
140

Common Calculations

PREN (Pitting Resistance) 12
18
Resilience: Ultimate (Unit Rupture Work), MJ/m3 92 to 110
240
Resilience: Unit (Modulus of Resilience), kJ/m3 150 to 490
140 to 440
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 20 to 24
21 to 25
Strength to Weight: Bending, points 19 to 22
20 to 22
Thermal Diffusivity, mm2/s 6.9
4.4
Thermal Shock Resistance, points 15 to 18
13 to 15

Alloy Composition

Aluminum (Al), % 0 to 0.040
0
Carbon (C), % 0.080 to 0.15
0 to 0.15
Chromium (Cr), % 8.0 to 10
17 to 19
Copper (Cu), % 0 to 0.3
0
Iron (Fe), % 86.8 to 90.5
67.3 to 74.9
Manganese (Mn), % 0.3 to 0.6
0 to 2.0
Molybdenum (Mo), % 0.9 to 1.1
0
Nickel (Ni), % 0
8.0 to 10
Phosphorus (P), % 0 to 0.025
0 to 0.2
Silicon (Si), % 0.25 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.010
0.15 to 0.35

Comparable Variants