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AISI 440A Stainless Steel vs. EN 1.4849 Stainless Steel

Both AISI 440A stainless steel and EN 1.4849 stainless steel are iron alloys. They have 57% of their average alloy composition in common. There are 28 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 AISI 440A stainless steel and the bottom bar is EN 1.4849 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 5.0 to 20
4.5
Fatigue Strength, MPa 270 to 790
120
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
75
Tensile Strength: Ultimate (UTS), MPa 730 to 1790
480
Tensile Strength: Yield (Proof), MPa 420 to 1650
250

Thermal Properties

Latent Heat of Fusion, J/g 280
320
Maximum Temperature: Corrosion, °C 400
620
Maximum Temperature: Mechanical, °C 760
1020
Melting Completion (Liquidus), °C 1480
1390
Melting Onset (Solidus), °C 1370
1340
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 23
12
Thermal Expansion, µm/m-K 10
15

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
42
Density, g/cm3 7.7
8.0
Embodied Carbon, kg CO2/kg material 2.2
7.1
Embodied Energy, MJ/kg 31
100
Embodied Water, L/kg 120
200

Common Calculations

PREN (Pitting Resistance) 18
20
Resilience: Ultimate (Unit Rupture Work), MJ/m3 87 to 120
18
Stiffness to Weight: Axial, points 14
13
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
3.2
Thermal Shock Resistance, points 26 to 65
11

Alloy Composition

Carbon (C), % 0.6 to 0.75
0.3 to 0.5
Chromium (Cr), % 16 to 18
18 to 21
Iron (Fe), % 78.4 to 83.4
32.6 to 43.5
Manganese (Mn), % 0 to 1.0
0 to 2.0
Molybdenum (Mo), % 0 to 0.75
0 to 0.5
Nickel (Ni), % 0
36 to 39
Niobium (Nb), % 0
1.2 to 1.8
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
1.0 to 2.5
Sulfur (S), % 0 to 0.015
0 to 0.030