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EN 1.4310 Stainless Steel vs. R30556 Alloy

Both EN 1.4310 stainless steel and R30556 alloy 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 (1, in this case) are not shown.

For each property being compared, the top bar is EN 1.4310 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, % 14 to 45
45
Fatigue Strength, MPa 240 to 330
320
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
81
Shear Strength, MPa 510 to 550
550
Tensile Strength: Ultimate (UTS), MPa 730 to 900
780
Tensile Strength: Yield (Proof), MPa 260 to 570
350

Thermal Properties

Latent Heat of Fusion, J/g 290
300
Maximum Temperature: Corrosion, °C 410
450
Maximum Temperature: Mechanical, °C 910
1100
Melting Completion (Liquidus), °C 1420
1420
Melting Onset (Solidus), °C 1380
1330
Specific Heat Capacity, J/kg-K 480
450
Thermal Conductivity, W/m-K 15
11
Thermal Expansion, µm/m-K 18
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
1.8
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 14
70
Density, g/cm3 7.8
8.4
Embodied Carbon, kg CO2/kg material 2.9
8.7
Embodied Energy, MJ/kg 42
130
Embodied Water, L/kg 140
300

Common Calculations

PREN (Pitting Resistance) 20
40
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 260
290
Resilience: Unit (Modulus of Resilience), kJ/m3 170 to 830
290
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 26 to 32
26
Strength to Weight: Bending, points 23 to 27
22
Thermal Diffusivity, mm2/s 4.0
2.9
Thermal Shock Resistance, points 15 to 18
18

Alloy Composition

Aluminum (Al), % 0
0.1 to 0.5
Boron (B), % 0
0 to 0.020
Carbon (C), % 0.050 to 0.15
0.050 to 0.15
Chromium (Cr), % 16 to 19
21 to 23
Cobalt (Co), % 0
16 to 21
Iron (Fe), % 66.4 to 78
20.4 to 38.2
Lanthanum (La), % 0
0.0050 to 0.1
Manganese (Mn), % 0 to 2.0
0.5 to 2.0
Molybdenum (Mo), % 0 to 0.8
2.5 to 4.0
Nickel (Ni), % 6.0 to 9.5
19 to 22.5
Niobium (Nb), % 0
0 to 0.3
Nitrogen (N), % 0 to 0.1
0.1 to 0.3
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0 to 2.0
0.2 to 0.8
Sulfur (S), % 0 to 0.015
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