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EN 1.4618 Stainless Steel vs. EN 1.4313 Stainless Steel

Both EN 1.4618 stainless steel and EN 1.4313 stainless steel are iron alloys. They have 86% of their average alloy composition in common. There are 33 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is EN 1.4618 stainless steel and the bottom bar is EN 1.4313 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 51
12 to 17
Fatigue Strength, MPa 240 to 250
340 to 510
Impact Strength: V-Notched Charpy, J 90 to 91
55 to 70
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
76
Shear Strength, MPa 480 to 500
460 to 600
Tensile Strength: Ultimate (UTS), MPa 680 to 700
750 to 1000
Tensile Strength: Yield (Proof), MPa 250 to 260
580 to 910

Thermal Properties

Latent Heat of Fusion, J/g 280
280
Maximum Temperature: Corrosion, °C 410
390
Maximum Temperature: Mechanical, °C 900
780
Melting Completion (Liquidus), °C 1400
1450
Melting Onset (Solidus), °C 1360
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
25
Thermal Expansion, µm/m-K 16
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 13
10
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.7
2.4
Embodied Energy, MJ/kg 39
34
Embodied Water, L/kg 150
110

Common Calculations

PREN (Pitting Resistance) 19
15
Resilience: Ultimate (Unit Rupture Work), MJ/m3 270 to 280
110 to 150
Resilience: Unit (Modulus of Resilience), kJ/m3 160 to 170
870 to 2100
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 24 to 25
27 to 36
Strength to Weight: Bending, points 22 to 23
23 to 28
Thermal Diffusivity, mm2/s 4.0
6.7
Thermal Shock Resistance, points 15 to 16
27 to 36

Alloy Composition

Carbon (C), % 0 to 0.1
0 to 0.050
Chromium (Cr), % 16.5 to 18.5
12 to 14
Copper (Cu), % 1.0 to 2.5
0
Iron (Fe), % 62.7 to 72.5
78.5 to 84.2
Manganese (Mn), % 5.5 to 9.5
0 to 1.5
Molybdenum (Mo), % 0
0.3 to 0.7
Nickel (Ni), % 4.5 to 5.5
3.5 to 4.5
Nitrogen (N), % 0 to 0.15
0 to 0.020
Phosphorus (P), % 0 to 0.070
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 0.7
Sulfur (S), % 0 to 0.010
0 to 0.015