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EN 1.7386 Steel vs. EN 1.4125 Stainless Steel

Both EN 1.7386 steel and EN 1.4125 stainless steel are iron alloys. They have a moderately high 91% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is EN 1.7386 steel and the bottom bar is EN 1.4125 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170 to 200
250
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 18 to 21
19
Fatigue Strength, MPa 170 to 290
300
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 75
77
Shear Strength, MPa 340 to 410
500
Tensile Strength: Ultimate (UTS), MPa 550 to 670
800
Tensile Strength: Yield (Proof), MPa 240 to 440
470

Thermal Properties

Latent Heat of Fusion, J/g 270
280
Maximum Temperature: Mechanical, °C 600
870
Melting Completion (Liquidus), °C 1450
1430
Melting Onset (Solidus), °C 1410
1390
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 26
15
Thermal Expansion, µm/m-K 13
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.0
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 10
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 6.5
9.0
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 2.0
2.3
Embodied Energy, MJ/kg 28
32
Embodied Water, L/kg 88
120

Common Calculations

PREN (Pitting Resistance) 12
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 92 to 110
130
Resilience: Unit (Modulus of Resilience), kJ/m3 150 to 490
570
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 20 to 24
29
Strength to Weight: Bending, points 19 to 22
25
Thermal Diffusivity, mm2/s 6.9
4.1
Thermal Shock Resistance, points 15 to 18
29

Alloy Composition

Aluminum (Al), % 0 to 0.040
0
Carbon (C), % 0.080 to 0.15
1.0 to 1.2
Chromium (Cr), % 8.0 to 10
16 to 18
Copper (Cu), % 0 to 0.3
0
Iron (Fe), % 86.8 to 90.5
78 to 82.7
Manganese (Mn), % 0.3 to 0.6
0 to 1.0
Molybdenum (Mo), % 0.9 to 1.1
0.4 to 0.8
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0.25 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.010
0 to 0.015