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R30556 Alloy vs. EN 1.4449 Stainless Steel

Both R30556 alloy and EN 1.4449 stainless steel are iron alloys. They have 63% of their average alloy composition in common. There are 32 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 1.4449 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 45
48
Fatigue Strength, MPa 320
240
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 81
78
Shear Strength, MPa 550
440
Tensile Strength: Ultimate (UTS), MPa 780
620
Tensile Strength: Yield (Proof), MPa 350
250

Thermal Properties

Latent Heat of Fusion, J/g 300
290
Maximum Temperature: Corrosion, °C 450
410
Maximum Temperature: Mechanical, °C 1100
960
Melting Completion (Liquidus), °C 1420
1440
Melting Onset (Solidus), °C 1330
1400
Specific Heat Capacity, J/kg-K 450
470
Thermal Conductivity, W/m-K 11
15
Thermal Expansion, µm/m-K 15
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.8
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 70
19
Density, g/cm3 8.4
7.9
Embodied Carbon, kg CO2/kg material 8.7
3.9
Embodied Energy, MJ/kg 130
54
Embodied Water, L/kg 300
150

Common Calculations

PREN (Pitting Resistance) 40
27
Resilience: Ultimate (Unit Rupture Work), MJ/m3 290
240
Resilience: Unit (Modulus of Resilience), kJ/m3 290
160
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 26
22
Strength to Weight: Bending, points 22
20
Thermal Diffusivity, mm2/s 2.9
4.0
Thermal Shock Resistance, points 18
14

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 0.035
Chromium (Cr), % 21 to 23
17 to 18.2
Cobalt (Co), % 16 to 21
0
Copper (Cu), % 0
0 to 1.0
Iron (Fe), % 20.4 to 38.2
62.4 to 69.3
Lanthanum (La), % 0.0050 to 0.1
0
Manganese (Mn), % 0.5 to 2.0
0 to 2.0
Molybdenum (Mo), % 2.5 to 4.0
2.3 to 2.8
Nickel (Ni), % 19 to 22.5
11.5 to 12.5
Niobium (Nb), % 0 to 0.3
0
Nitrogen (N), % 0.1 to 0.3
0 to 0.080
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0.2 to 0.8
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.015
Tantalum (Ta), % 0.3 to 1.3
0
Tungsten (W), % 2.0 to 3.5
0
Zinc (Zn), % 0.0010 to 0.1
0