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EN 1.4980 Stainless Steel vs. AISI 440A Stainless Steel

Both EN 1.4980 stainless steel and AISI 440A stainless steel are iron alloys. They have 70% of their average alloy composition in common. There are 31 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 EN 1.4980 stainless steel and the bottom bar is AISI 440A stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 17
5.0 to 20
Fatigue Strength, MPa 410
270 to 790
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 75
77
Shear Strength, MPa 630
450 to 1040
Tensile Strength: Ultimate (UTS), MPa 1030
730 to 1790
Tensile Strength: Yield (Proof), MPa 680
420 to 1650

Thermal Properties

Latent Heat of Fusion, J/g 300
280
Maximum Temperature: Corrosion, °C 780
400
Maximum Temperature: Mechanical, °C 920
760
Melting Completion (Liquidus), °C 1430
1480
Melting Onset (Solidus), °C 1380
1370
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 13
23
Thermal Expansion, µm/m-K 17
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 2.1
2.9

Otherwise Unclassified Properties

Base Metal Price, % relative 26
9.0
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 6.0
2.2
Embodied Energy, MJ/kg 87
31
Embodied Water, L/kg 170
120

Common Calculations

PREN (Pitting Resistance) 19
18
Resilience: Ultimate (Unit Rupture Work), MJ/m3 150
87 to 120
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 36
26 to 65
Strength to Weight: Bending, points 28
23 to 43
Thermal Diffusivity, mm2/s 3.5
6.2
Thermal Shock Resistance, points 22
26 to 65

Alloy Composition

Aluminum (Al), % 0 to 0.35
0
Boron (B), % 0.0030 to 0.010
0
Carbon (C), % 0.030 to 0.080
0.6 to 0.75
Chromium (Cr), % 13.5 to 16
16 to 18
Iron (Fe), % 49.2 to 58.5
78.4 to 83.4
Manganese (Mn), % 1.0 to 2.0
0 to 1.0
Molybdenum (Mo), % 1.0 to 1.5
0 to 0.75
Nickel (Ni), % 24 to 27
0
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.015
Titanium (Ti), % 1.9 to 2.3
0
Vanadium (V), % 0.1 to 0.5
0