MakeItFrom.com
Menu (ESC)

EN 1.4421 Stainless Steel vs. EN 1.4724 Stainless Steel

Both EN 1.4421 stainless steel and EN 1.4724 stainless steel are iron alloys. They have a moderately high 91% of their average alloy composition in common. There are 31 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 1.4724 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 11 to 17
16
Fatigue Strength, MPa 380 to 520
170
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
75
Tensile Strength: Ultimate (UTS), MPa 880 to 1100
550
Tensile Strength: Yield (Proof), MPa 620 to 950
280

Thermal Properties

Latent Heat of Fusion, J/g 280
290
Maximum Temperature: Corrosion, °C 410
390
Maximum Temperature: Mechanical, °C 870
850
Melting Completion (Liquidus), °C 1440
1430
Melting Onset (Solidus), °C 1400
1390
Specific Heat Capacity, J/kg-K 480
490
Thermal Conductivity, W/m-K 16
21
Thermal Expansion, µm/m-K 10
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 12
7.0
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 2.6
2.0
Embodied Energy, MJ/kg 36
28
Embodied Water, L/kg 130
110

Common Calculations

PREN (Pitting Resistance) 18
13
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120 to 140
73
Resilience: Unit (Modulus of Resilience), kJ/m3 960 to 2270
210
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 31 to 39
20
Strength to Weight: Bending, points 26 to 30
19
Thermal Diffusivity, mm2/s 4.4
5.6
Thermal Shock Resistance, points 31 to 39
19

Alloy Composition

Aluminum (Al), % 0
0.7 to 1.2
Carbon (C), % 0 to 0.060
0 to 0.12
Chromium (Cr), % 15.5 to 17.5
12 to 14
Iron (Fe), % 74.4 to 80.5
82.2 to 86.6
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 0 to 0.7
0
Nickel (Ni), % 4.0 to 5.5
0
Phosphorus (P), % 0 to 0.035
0 to 0.040
Silicon (Si), % 0 to 0.8
0.7 to 1.4
Sulfur (S), % 0 to 0.020
0 to 0.015