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EN 1.4031 Stainless Steel vs. EN 1.4516 Stainless Steel

Both EN 1.4031 stainless steel and EN 1.4516 stainless steel are iron alloys. They have a very high 97% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.4031 stainless steel and the bottom bar is EN 1.4516 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 11 to 13
23
Fatigue Strength, MPa 220 to 400
210
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
76
Shear Strength, MPa 400 to 540
350
Tensile Strength: Ultimate (UTS), MPa 670 to 900
550
Tensile Strength: Yield (Proof), MPa 390 to 730
320

Thermal Properties

Latent Heat of Fusion, J/g 280
270
Maximum Temperature: Corrosion, °C 390
420
Maximum Temperature: Mechanical, °C 770
720
Melting Completion (Liquidus), °C 1440
1450
Melting Onset (Solidus), °C 1400
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 30
30
Thermal Expansion, µm/m-K 11
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.1
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 3.7
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
7.0
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 1.9
2.0
Embodied Energy, MJ/kg 27
28
Embodied Water, L/kg 100
97

Common Calculations

PREN (Pitting Resistance) 14
12
Resilience: Ultimate (Unit Rupture Work), MJ/m3 77 to 94
110
Resilience: Unit (Modulus of Resilience), kJ/m3 380 to 1360
260
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 24 to 32
20
Strength to Weight: Bending, points 22 to 27
19
Thermal Diffusivity, mm2/s 8.1
8.1
Thermal Shock Resistance, points 23 to 32
20

Alloy Composition

Carbon (C), % 0.36 to 0.42
0 to 0.080
Chromium (Cr), % 12.5 to 14.5
10.5 to 12.5
Iron (Fe), % 83 to 87.1
83.3 to 89
Manganese (Mn), % 0 to 1.0
0 to 1.5
Nickel (Ni), % 0
0.5 to 1.5
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 0.7
Sulfur (S), % 0 to 0.015
0 to 0.015
Titanium (Ti), % 0
0.050 to 0.35