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EN 1.4460 Stainless Steel vs. EN 1.4315 Stainless Steel

Both EN 1.4460 stainless steel and EN 1.4315 stainless steel are iron alloys. Both are furnished in the solution annealed (AT) condition. They have a moderately high 91% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.4460 stainless steel and the bottom bar is EN 1.4315 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220
180
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 21
45
Fatigue Strength, MPa 330
290
Impact Strength: V-Notched Charpy, J 83
90
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 80
77
Shear Strength, MPa 470
440
Tensile Strength: Ultimate (UTS), MPa 750
630
Tensile Strength: Yield (Proof), MPa 510
310

Thermal Properties

Latent Heat of Fusion, J/g 300
290
Maximum Temperature: Corrosion, °C 450
420
Maximum Temperature: Mechanical, °C 1100
960
Melting Completion (Liquidus), °C 1430
1420
Melting Onset (Solidus), °C 1390
1380
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
15
Thermal Expansion, µm/m-K 13
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 18
15
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 3.4
3.0
Embodied Energy, MJ/kg 48
43
Embodied Water, L/kg 180
150

Common Calculations

PREN (Pitting Resistance) 34
22
Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
240
Resilience: Unit (Modulus of Resilience), kJ/m3 640
240
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 27
22
Strength to Weight: Bending, points 24
21
Thermal Diffusivity, mm2/s 4.0
4.0
Thermal Shock Resistance, points 20
14

Alloy Composition

Carbon (C), % 0 to 0.050
0 to 0.060
Chromium (Cr), % 25 to 28
18 to 20
Iron (Fe), % 60.2 to 69.2
65.7 to 73.9
Manganese (Mn), % 0 to 2.0
0 to 2.0
Molybdenum (Mo), % 1.3 to 2.0
0
Nickel (Ni), % 4.5 to 6.5
8.0 to 11
Nitrogen (N), % 0.050 to 0.2
0.12 to 0.22
Phosphorus (P), % 0 to 0.035
0 to 0.045
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.015