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EN 1.4859 Stainless Steel vs. R30556 Alloy

Both EN 1.4859 stainless steel and R30556 alloy are iron alloys. They have 72% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is EN 1.4859 stainless steel and the bottom bar is R30556 alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 23
45
Fatigue Strength, MPa 140
320
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
81
Tensile Strength: Ultimate (UTS), MPa 490
780
Tensile Strength: Yield (Proof), MPa 210
350

Thermal Properties

Latent Heat of Fusion, J/g 310
300
Maximum Temperature: Corrosion, °C 560
450
Maximum Temperature: Mechanical, °C 1050
1100
Melting Completion (Liquidus), °C 1410
1420
Melting Onset (Solidus), °C 1360
1330
Specific Heat Capacity, J/kg-K 470
450
Thermal Conductivity, W/m-K 13
11
Thermal Expansion, µm/m-K 16
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
1.8
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 36
70
Density, g/cm3 8.0
8.4
Embodied Carbon, kg CO2/kg material 6.2
8.7
Embodied Energy, MJ/kg 88
130
Embodied Water, L/kg 190
300

Common Calculations

PREN (Pitting Resistance) 21
40
Resilience: Ultimate (Unit Rupture Work), MJ/m3 91
290
Resilience: Unit (Modulus of Resilience), kJ/m3 110
290
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 17
26
Strength to Weight: Bending, points 17
22
Thermal Diffusivity, mm2/s 3.4
2.9
Thermal Shock Resistance, points 11
18

Alloy Composition

Aluminum (Al), % 0
0.1 to 0.5
Boron (B), % 0
0 to 0.020
Carbon (C), % 0.050 to 0.15
0.050 to 0.15
Chromium (Cr), % 19 to 21
21 to 23
Cobalt (Co), % 0
16 to 21
Iron (Fe), % 40.3 to 49
20.4 to 38.2
Lanthanum (La), % 0
0.0050 to 0.1
Manganese (Mn), % 0 to 2.0
0.5 to 2.0
Molybdenum (Mo), % 0 to 0.5
2.5 to 4.0
Nickel (Ni), % 31 to 33
19 to 22.5
Niobium (Nb), % 0.5 to 1.5
0 to 0.3
Nitrogen (N), % 0
0.1 to 0.3
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0.5 to 1.5
0.2 to 0.8
Sulfur (S), % 0 to 0.030
0 to 0.015
Tantalum (Ta), % 0
0.3 to 1.3
Tungsten (W), % 0
2.0 to 3.5
Zinc (Zn), % 0
0.0010 to 0.1