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EN 1.4421 Stainless Steel vs. EN 1.4527 Stainless Steel

Both EN 1.4421 stainless steel and EN 1.4527 stainless steel are iron alloys. They have 66% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is EN 1.4421 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, % 11 to 17
40
Fatigue Strength, MPa 380 to 520
170
Impact Strength: V-Notched Charpy, J 30 to 67
67
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
77
Tensile Strength: Ultimate (UTS), MPa 880 to 1100
480
Tensile Strength: Yield (Proof), MPa 620 to 950
190

Thermal Properties

Latent Heat of Fusion, J/g 280
310
Maximum Temperature: Corrosion, °C 410
430
Maximum Temperature: Mechanical, °C 870
1100
Melting Completion (Liquidus), °C 1440
1410
Melting Onset (Solidus), °C 1400
1360
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 16
15
Thermal Expansion, µm/m-K 10
15

Otherwise Unclassified Properties

Base Metal Price, % relative 12
32
Density, g/cm3 7.8
8.1
Embodied Carbon, kg CO2/kg material 2.6
5.6
Embodied Energy, MJ/kg 36
78
Embodied Water, L/kg 130
210

Common Calculations

PREN (Pitting Resistance) 18
29
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120 to 140
150
Resilience: Unit (Modulus of Resilience), kJ/m3 960 to 2270
95
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 31 to 39
17
Strength to Weight: Bending, points 26 to 30
17
Thermal Diffusivity, mm2/s 4.4
4.0
Thermal Shock Resistance, points 31 to 39
12

Alloy Composition

Carbon (C), % 0 to 0.060
0 to 0.060
Chromium (Cr), % 15.5 to 17.5
19 to 22
Copper (Cu), % 0
3.0 to 4.0
Iron (Fe), % 74.4 to 80.5
37.4 to 48.5
Manganese (Mn), % 0 to 1.0
0 to 1.5
Molybdenum (Mo), % 0 to 0.7
2.0 to 3.0
Nickel (Ni), % 4.0 to 5.5
27.5 to 30.5
Phosphorus (P), % 0 to 0.035
0 to 0.040
Silicon (Si), % 0 to 0.8
0 to 1.5
Sulfur (S), % 0 to 0.020
0 to 0.030