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EN 1.4959 Stainless Steel vs. EN 1.7386 Steel

Both EN 1.4959 stainless steel and EN 1.7386 steel are iron alloys. They have 55% 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 1.4959 stainless steel and the bottom bar is EN 1.7386 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 40
18 to 21
Fatigue Strength, MPa 170
170 to 290
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
75
Shear Strength, MPa 430
340 to 410
Tensile Strength: Ultimate (UTS), MPa 630
550 to 670
Tensile Strength: Yield (Proof), MPa 190
240 to 440

Thermal Properties

Latent Heat of Fusion, J/g 300
270
Maximum Temperature: Mechanical, °C 1090
600
Melting Completion (Liquidus), °C 1400
1450
Melting Onset (Solidus), °C 1350
1410
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 12
26
Thermal Expansion, µm/m-K 15
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
9.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
10

Otherwise Unclassified Properties

Base Metal Price, % relative 31
6.5
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 5.4
2.0
Embodied Energy, MJ/kg 76
28
Embodied Water, L/kg 200
88

Common Calculations

PREN (Pitting Resistance) 21
12
Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
92 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 96
150 to 490
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 22
20 to 24
Strength to Weight: Bending, points 20
19 to 22
Thermal Diffusivity, mm2/s 3.2
6.9
Thermal Shock Resistance, points 15
15 to 18

Alloy Composition

Aluminum (Al), % 0.25 to 0.65
0 to 0.040
Carbon (C), % 0.050 to 0.1
0.080 to 0.15
Chromium (Cr), % 19 to 22
8.0 to 10
Cobalt (Co), % 0 to 0.5
0
Copper (Cu), % 0 to 0.5
0 to 0.3
Iron (Fe), % 39.4 to 50.5
86.8 to 90.5
Manganese (Mn), % 0 to 1.5
0.3 to 0.6
Molybdenum (Mo), % 0
0.9 to 1.1
Nickel (Ni), % 30 to 34
0
Nitrogen (N), % 0 to 0.030
0
Phosphorus (P), % 0 to 0.015
0 to 0.025
Silicon (Si), % 0 to 0.7
0.25 to 1.0
Sulfur (S), % 0 to 0.010
0 to 0.010
Titanium (Ti), % 0.25 to 0.65
0