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R30556 Alloy vs. EN 1.4424 Stainless Steel

Both R30556 alloy and EN 1.4424 stainless steel are iron alloys. They have 57% 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 1.4424 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 45
28
Fatigue Strength, MPa 320
350 to 370
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 81
78
Shear Strength, MPa 550
520
Tensile Strength: Ultimate (UTS), MPa 780
800
Tensile Strength: Yield (Proof), MPa 350
480 to 500

Thermal Properties

Latent Heat of Fusion, J/g 300
310
Maximum Temperature: Corrosion, °C 450
420
Maximum Temperature: Mechanical, °C 1100
960
Melting Completion (Liquidus), °C 1420
1430
Melting Onset (Solidus), °C 1330
1390
Specific Heat Capacity, J/kg-K 450
480
Thermal Conductivity, W/m-K 11
13
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
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 70
15
Density, g/cm3 8.4
7.7
Embodied Carbon, kg CO2/kg material 8.7
3.4
Embodied Energy, MJ/kg 130
46
Embodied Water, L/kg 300
140

Common Calculations

PREN (Pitting Resistance) 40
29
Resilience: Ultimate (Unit Rupture Work), MJ/m3 290
190 to 200
Resilience: Unit (Modulus of Resilience), kJ/m3 290
580 to 640
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 26
29
Strength to Weight: Bending, points 22
25
Thermal Diffusivity, mm2/s 2.9
3.5
Thermal Shock Resistance, points 18
23

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 19
Cobalt (Co), % 16 to 21
0
Iron (Fe), % 20.4 to 38.2
68.6 to 72.4
Lanthanum (La), % 0.0050 to 0.1
0
Manganese (Mn), % 0.5 to 2.0
1.2 to 2.0
Molybdenum (Mo), % 2.5 to 4.0
2.5 to 3.0
Nickel (Ni), % 19 to 22.5
4.5 to 5.2
Niobium (Nb), % 0 to 0.3
0
Nitrogen (N), % 0.1 to 0.3
0.050 to 0.1
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0.2 to 0.8
1.4 to 2.0
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