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EN 1.4951 Stainless Steel vs. EN 1.4584 Stainless Steel

Both EN 1.4951 stainless steel and EN 1.4584 stainless steel are iron alloys. Both are furnished in the solution annealed (AT) condition. They have 89% 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 1.4951 stainless steel and the bottom bar is EN 1.4584 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
150
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 38
34
Fatigue Strength, MPa 190
170
Impact Strength: V-Notched Charpy, J 98
67
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 79
79
Tensile Strength: Ultimate (UTS), MPa 630
500
Tensile Strength: Yield (Proof), MPa 220
210

Thermal Properties

Latent Heat of Fusion, J/g 300
300
Maximum Temperature: Corrosion, °C 450
420
Maximum Temperature: Mechanical, °C 1100
1100
Melting Completion (Liquidus), °C 1410
1440
Melting Onset (Solidus), °C 1360
1390
Specific Heat Capacity, J/kg-K 480
460
Thermal Conductivity, W/m-K 15
17
Thermal Expansion, µm/m-K 16
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 25
31
Density, g/cm3 7.9
8.1
Embodied Carbon, kg CO2/kg material 4.3
5.7
Embodied Energy, MJ/kg 61
78
Embodied Water, L/kg 190
200

Common Calculations

PREN (Pitting Resistance) 26
36
Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
140
Resilience: Unit (Modulus of Resilience), kJ/m3 130
110
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 22
17
Strength to Weight: Bending, points 21
17
Thermal Diffusivity, mm2/s 3.9
4.5
Thermal Shock Resistance, points 14
12

Alloy Composition

Carbon (C), % 0.040 to 0.080
0 to 0.025
Chromium (Cr), % 24 to 26
19 to 21
Copper (Cu), % 0
1.0 to 3.0
Iron (Fe), % 49.1 to 57
41.7 to 52
Manganese (Mn), % 0 to 2.0
0 to 2.0
Molybdenum (Mo), % 0
4.0 to 5.0
Nickel (Ni), % 19 to 22
24 to 26
Nitrogen (N), % 0 to 0.1
0 to 0.2
Phosphorus (P), % 0 to 0.035
0 to 0.035
Silicon (Si), % 0 to 0.7
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.020