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EN 1.4600 Stainless Steel vs. EN 1.4031 Stainless Steel

Both EN 1.4600 stainless steel and EN 1.4031 stainless steel are iron alloys. They have a very high 98% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.4600 stainless steel and the bottom bar is EN 1.4031 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 23
11 to 13
Fatigue Strength, MPa 290
220 to 400
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
76
Shear Strength, MPa 360
400 to 540
Tensile Strength: Ultimate (UTS), MPa 580
670 to 900
Tensile Strength: Yield (Proof), MPa 430
390 to 730

Thermal Properties

Latent Heat of Fusion, J/g 270
280
Maximum Temperature: Corrosion, °C 420
390
Maximum Temperature: Mechanical, °C 730
770
Melting Completion (Liquidus), °C 1440
1440
Melting Onset (Solidus), °C 1400
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 27
30
Thermal Expansion, µm/m-K 10
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
3.1
Electrical Conductivity: Equal Weight (Specific), % IACS 3.4
3.7

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
7.0
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 2.0
1.9
Embodied Energy, MJ/kg 28
27
Embodied Water, L/kg 100
100

Common Calculations

PREN (Pitting Resistance) 12
14
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
77 to 94
Resilience: Unit (Modulus of Resilience), kJ/m3 470
380 to 1360
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 21
24 to 32
Strength to Weight: Bending, points 20
22 to 27
Thermal Diffusivity, mm2/s 7.3
8.1
Thermal Shock Resistance, points 21
23 to 32

Alloy Composition

Carbon (C), % 0 to 0.030
0.36 to 0.42
Chromium (Cr), % 11 to 13
12.5 to 14.5
Iron (Fe), % 82 to 87.7
83 to 87.1
Manganese (Mn), % 1.0 to 2.5
0 to 1.0
Nickel (Ni), % 0.3 to 1.0
0
Nitrogen (N), % 0 to 0.025
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.015
Titanium (Ti), % 0 to 0.35
0