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R30556 Alloy vs. EN 1.4487 Stainless Steel

Both R30556 alloy and EN 1.4487 stainless steel are iron alloys. They have 60% 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 R30556 alloy and the bottom bar is EN 1.4487 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 45
34
Fatigue Strength, MPa 320
210
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 81
77
Tensile Strength: Ultimate (UTS), MPa 780
560
Tensile Strength: Yield (Proof), MPa 350
260

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 1420
1420
Melting Onset (Solidus), °C 1330
1380
Specific Heat Capacity, J/kg-K 450
480
Thermal Conductivity, W/m-K 11
16
Thermal Expansion, µm/m-K 15
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.8
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 70
16
Density, g/cm3 8.4
7.8
Embodied Carbon, kg CO2/kg material 8.7
3.1
Embodied Energy, MJ/kg 130
44
Embodied Water, L/kg 300
150

Common Calculations

PREN (Pitting Resistance) 40
22
Resilience: Ultimate (Unit Rupture Work), MJ/m3 290
160
Resilience: Unit (Modulus of Resilience), kJ/m3 290
170
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 26
20
Strength to Weight: Bending, points 22
19
Thermal Diffusivity, mm2/s 2.9
4.2
Thermal Shock Resistance, points 18
16

Alloy Composition

Aluminum (Al), % 0.1 to 0.5
0
Boron (B), % 0 to 0.020
0
Carbon (C), % 0.050 to 0.15
0 to 0.030
Chromium (Cr), % 21 to 23
18 to 20
Cobalt (Co), % 16 to 21
0
Iron (Fe), % 20.4 to 38.2
64.7 to 72.9
Lanthanum (La), % 0.0050 to 0.1
0
Manganese (Mn), % 0.5 to 2.0
0 to 1.5
Molybdenum (Mo), % 2.5 to 4.0
0
Nickel (Ni), % 19 to 22.5
9.0 to 12
Niobium (Nb), % 0 to 0.3
0
Nitrogen (N), % 0.1 to 0.3
0.12 to 0.2
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0.2 to 0.8
0 to 1.5
Sulfur (S), % 0 to 0.015
0 to 0.030
Tantalum (Ta), % 0.3 to 1.3
0
Tungsten (W), % 2.0 to 3.5
0
Zinc (Zn), % 0.0010 to 0.1
0