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AISI 440A Stainless Steel vs. EN 1.4527 Stainless Steel

Both AISI 440A stainless steel and EN 1.4527 stainless steel are iron alloys. They have 61% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is AISI 440A stainless steel and the bottom bar is EN 1.4527 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 5.0 to 20
40
Fatigue Strength, MPa 270 to 790
170
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
77
Tensile Strength: Ultimate (UTS), MPa 730 to 1790
480
Tensile Strength: Yield (Proof), MPa 420 to 1650
190

Thermal Properties

Latent Heat of Fusion, J/g 280
310
Maximum Temperature: Corrosion, °C 400
430
Maximum Temperature: Mechanical, °C 760
1100
Melting Completion (Liquidus), °C 1480
1410
Melting Onset (Solidus), °C 1370
1360
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 23
15
Thermal Expansion, µm/m-K 10
15

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
32
Density, g/cm3 7.7
8.1
Embodied Carbon, kg CO2/kg material 2.2
5.6
Embodied Energy, MJ/kg 31
78
Embodied Water, L/kg 120
210

Common Calculations

PREN (Pitting Resistance) 18
29
Resilience: Ultimate (Unit Rupture Work), MJ/m3 87 to 120
150
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 26 to 65
17
Strength to Weight: Bending, points 23 to 43
17
Thermal Diffusivity, mm2/s 6.2
4.0
Thermal Shock Resistance, points 26 to 65
12

Alloy Composition

Carbon (C), % 0.6 to 0.75
0 to 0.060
Chromium (Cr), % 16 to 18
19 to 22
Copper (Cu), % 0
3.0 to 4.0
Iron (Fe), % 78.4 to 83.4
37.4 to 48.5
Manganese (Mn), % 0 to 1.0
0 to 1.5
Molybdenum (Mo), % 0 to 0.75
2.0 to 3.0
Nickel (Ni), % 0
27.5 to 30.5
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.5
Sulfur (S), % 0 to 0.015
0 to 0.030