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EN 1.4646 Stainless Steel vs. EN 1.7386 Steel

Both EN 1.4646 stainless steel and EN 1.7386 steel are iron alloys. They have 74% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is EN 1.4646 stainless steel and the bottom bar is EN 1.7386 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220
170 to 200
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 34
18 to 21
Fatigue Strength, MPa 340
170 to 290
Impact Strength: V-Notched Charpy, J 90
38
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
75
Shear Strength, MPa 500
340 to 410
Tensile Strength: Ultimate (UTS), MPa 750
550 to 670
Tensile Strength: Yield (Proof), MPa 430
240 to 440

Thermal Properties

Latent Heat of Fusion, J/g 290
270
Maximum Temperature: Mechanical, °C 910
600
Melting Completion (Liquidus), °C 1390
1450
Melting Onset (Solidus), °C 1340
1410
Specific Heat Capacity, J/kg-K 480
480
Thermal Expansion, µm/m-K 17
13

Otherwise Unclassified Properties

Base Metal Price, % relative 13
6.5
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.8
2.0
Embodied Energy, MJ/kg 41
28
Embodied Water, L/kg 160
88

Common Calculations

PREN (Pitting Resistance) 23
12
Resilience: Ultimate (Unit Rupture Work), MJ/m3 220
92 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 460
150 to 490
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 27
20 to 24
Strength to Weight: Bending, points 24
19 to 22
Thermal Shock Resistance, points 16
15 to 18

Alloy Composition

Aluminum (Al), % 0
0 to 0.040
Carbon (C), % 0.020 to 0.1
0.080 to 0.15
Chromium (Cr), % 17 to 19
8.0 to 10
Copper (Cu), % 1.5 to 3.0
0 to 0.3
Iron (Fe), % 59 to 67.3
86.8 to 90.5
Manganese (Mn), % 10.5 to 12.5
0.3 to 0.6
Molybdenum (Mo), % 0 to 0.5
0.9 to 1.1
Nickel (Ni), % 3.5 to 4.5
0
Nitrogen (N), % 0.2 to 0.3
0
Phosphorus (P), % 0 to 0.050
0 to 0.025
Silicon (Si), % 0 to 1.0
0.25 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.010