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R30556 Alloy vs. EN 1.4951 Stainless Steel

Both R30556 alloy and EN 1.4951 stainless steel are iron alloys. They have 73% 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 1.4951 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 45
38
Fatigue Strength, MPa 320
190
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 81
79
Shear Strength, MPa 550
430
Tensile Strength: Ultimate (UTS), MPa 780
630
Tensile Strength: Yield (Proof), MPa 350
220

Thermal Properties

Latent Heat of Fusion, J/g 300
300
Maximum Temperature: Corrosion, °C 450
450
Maximum Temperature: Mechanical, °C 1100
1100
Melting Completion (Liquidus), °C 1420
1410
Melting Onset (Solidus), °C 1330
1360
Specific Heat Capacity, J/kg-K 450
480
Thermal Conductivity, W/m-K 11
15
Thermal Expansion, µm/m-K 15
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.8
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 70
25
Density, g/cm3 8.4
7.9
Embodied Carbon, kg CO2/kg material 8.7
4.3
Embodied Energy, MJ/kg 130
61
Embodied Water, L/kg 300
190

Common Calculations

PREN (Pitting Resistance) 40
26
Resilience: Ultimate (Unit Rupture Work), MJ/m3 290
190
Resilience: Unit (Modulus of Resilience), kJ/m3 290
130
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
21
Thermal Diffusivity, mm2/s 2.9
3.9
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
0.040 to 0.080
Chromium (Cr), % 21 to 23
24 to 26
Cobalt (Co), % 16 to 21
0
Iron (Fe), % 20.4 to 38.2
49.1 to 57
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
0
Nickel (Ni), % 19 to 22.5
19 to 22
Niobium (Nb), % 0 to 0.3
0
Nitrogen (N), % 0.1 to 0.3
0 to 0.1
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0.2 to 0.8
0 to 0.7
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