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EN 1.3549 Stainless Steel vs. R30556 Alloy

Both EN 1.3549 stainless steel and R30556 alloy are iron alloys. They have 50% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is EN 1.3549 stainless steel and the bottom bar is R30556 alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
210
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
81
Tensile Strength: Ultimate (UTS), MPa 730
780

Thermal Properties

Latent Heat of Fusion, J/g 280
300
Maximum Temperature: Corrosion, °C 400
450
Maximum Temperature: Mechanical, °C 910
1100
Melting Completion (Liquidus), °C 1430
1420
Melting Onset (Solidus), °C 1390
1330
Specific Heat Capacity, J/kg-K 480
450
Thermal Conductivity, W/m-K 21
11
Thermal Expansion, µm/m-K 10
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
1.8
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 10
70
Density, g/cm3 7.7
8.4
Embodied Carbon, kg CO2/kg material 2.6
8.7
Embodied Energy, MJ/kg 37
130
Embodied Water, L/kg 130
300

Common Calculations

PREN (Pitting Resistance) 22
40
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 27
26
Strength to Weight: Bending, points 24
22
Thermal Diffusivity, mm2/s 5.6
2.9
Thermal Shock Resistance, points 26
18

Alloy Composition

Aluminum (Al), % 0
0.1 to 0.5
Boron (B), % 0
0 to 0.020
Carbon (C), % 0.85 to 1.0
0.050 to 0.15
Chromium (Cr), % 17 to 19
21 to 23
Cobalt (Co), % 0
16 to 21
Iron (Fe), % 77.5 to 82
20.4 to 38.2
Lanthanum (La), % 0
0.0050 to 0.1
Manganese (Mn), % 0 to 1.0
0.5 to 2.0
Molybdenum (Mo), % 0.9 to 1.3
2.5 to 4.0
Nickel (Ni), % 0
19 to 22.5
Niobium (Nb), % 0
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 to 1.0
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
Vanadium (V), % 0.070 to 0.12
0
Zinc (Zn), % 0
0.0010 to 0.1