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EN 1.4584 Stainless Steel vs. EN 1.4912 Stainless Steel

Both EN 1.4584 stainless steel and EN 1.4912 stainless steel are iron alloys. Both are furnished in the solution annealed (AT) condition. They have 77% 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 1.4584 stainless steel and the bottom bar is EN 1.4912 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
180
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 34
40
Fatigue Strength, MPa 170
200
Impact Strength: V-Notched Charpy, J 67
90
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 79
77
Tensile Strength: Ultimate (UTS), MPa 500
610
Tensile Strength: Yield (Proof), MPa 210
230

Thermal Properties

Latent Heat of Fusion, J/g 300
290
Maximum Temperature: Corrosion, °C 420
520
Maximum Temperature: Mechanical, °C 1100
940
Melting Completion (Liquidus), °C 1440
1430
Melting Onset (Solidus), °C 1390
1390
Specific Heat Capacity, J/kg-K 460
480
Thermal Conductivity, W/m-K 17
16
Thermal Expansion, µm/m-K 15
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 31
20
Density, g/cm3 8.1
7.8
Embodied Carbon, kg CO2/kg material 5.7
3.8
Embodied Energy, MJ/kg 78
55
Embodied Water, L/kg 200
140

Common Calculations

PREN (Pitting Resistance) 36
18
Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
190
Resilience: Unit (Modulus of Resilience), kJ/m3 110
130
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 17
22
Strength to Weight: Bending, points 17
20
Thermal Diffusivity, mm2/s 4.5
4.2
Thermal Shock Resistance, points 12
14

Alloy Composition

Carbon (C), % 0 to 0.025
0.040 to 0.1
Chromium (Cr), % 19 to 21
17 to 19
Copper (Cu), % 1.0 to 3.0
0
Iron (Fe), % 41.7 to 52
64.6 to 73.6
Manganese (Mn), % 0 to 2.0
0 to 2.0
Molybdenum (Mo), % 4.0 to 5.0
0
Nickel (Ni), % 24 to 26
9.0 to 12
Niobium (Nb), % 0
0.4 to 1.2
Nitrogen (N), % 0 to 0.2
0
Phosphorus (P), % 0 to 0.035
0 to 0.045
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.020
0 to 0.015