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EN 1.4527 Stainless Steel vs. R30556 Alloy

Both EN 1.4527 stainless steel and R30556 alloy are iron alloys. They have 74% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is EN 1.4527 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, % 40
45
Fatigue Strength, MPa 170
320
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
81
Tensile Strength: Ultimate (UTS), MPa 480
780
Tensile Strength: Yield (Proof), MPa 190
350

Thermal Properties

Latent Heat of Fusion, J/g 310
300
Maximum Temperature: Corrosion, °C 430
450
Maximum Temperature: Mechanical, °C 1100
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 15
11
Thermal Expansion, µm/m-K 15
15

Otherwise Unclassified Properties

Base Metal Price, % relative 32
70
Density, g/cm3 8.1
8.4
Embodied Carbon, kg CO2/kg material 5.6
8.7
Embodied Energy, MJ/kg 78
130
Embodied Water, L/kg 210
300

Common Calculations

PREN (Pitting Resistance) 29
40
Resilience: Ultimate (Unit Rupture Work), MJ/m3 150
290
Resilience: Unit (Modulus of Resilience), kJ/m3 95
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 4.0
2.9
Thermal Shock Resistance, points 12
18

Alloy Composition

Aluminum (Al), % 0
0.1 to 0.5
Boron (B), % 0
0 to 0.020
Carbon (C), % 0 to 0.060
0.050 to 0.15
Chromium (Cr), % 19 to 22
21 to 23
Cobalt (Co), % 0
16 to 21
Copper (Cu), % 3.0 to 4.0
0
Iron (Fe), % 37.4 to 48.5
20.4 to 38.2
Lanthanum (La), % 0
0.0050 to 0.1
Manganese (Mn), % 0 to 1.5
0.5 to 2.0
Molybdenum (Mo), % 2.0 to 3.0
2.5 to 4.0
Nickel (Ni), % 27.5 to 30.5
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 1.5
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