MakeItFrom.com
Menu (ESC)

EN 1.4301 Stainless Steel vs. EN 1.4439 Stainless Steel

Both EN 1.4301 stainless steel and EN 1.4439 stainless steel are iron alloys. They have a moderately high 91% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.4301 stainless steel and the bottom bar is EN 1.4439 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190 to 270
220
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 14 to 46
40
Fatigue Strength, MPa 200 to 330
270
Impact Strength: V-Notched Charpy, J 91 to 94
90
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
79
Shear Strength, MPa 430 to 550
470
Tensile Strength: Ultimate (UTS), MPa 610 to 900
680
Tensile Strength: Yield (Proof), MPa 220 to 570
310

Thermal Properties

Latent Heat of Fusion, J/g 290
290
Maximum Temperature: Corrosion, °C 420
410
Maximum Temperature: Mechanical, °C 940
980
Melting Completion (Liquidus), °C 1430
1460
Melting Onset (Solidus), °C 1380
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
14
Thermal Expansion, µm/m-K 16
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 15
22
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 3.0
4.5
Embodied Energy, MJ/kg 43
61
Embodied Water, L/kg 140
160

Common Calculations

PREN (Pitting Resistance) 19
35
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 220
220
Resilience: Unit (Modulus of Resilience), kJ/m3 120 to 820
240
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 22 to 32
24
Strength to Weight: Bending, points 20 to 27
22
Thermal Diffusivity, mm2/s 4.0
3.8
Thermal Shock Resistance, points 14 to 20
15

Alloy Composition

Carbon (C), % 0 to 0.070
0 to 0.030
Chromium (Cr), % 17.5 to 19.5
16.5 to 18.5
Iron (Fe), % 66.8 to 74.5
58.7 to 66.9
Manganese (Mn), % 0 to 2.0
0 to 2.0
Molybdenum (Mo), % 0
4.0 to 5.0
Nickel (Ni), % 8.0 to 10.5
12.5 to 14.5
Nitrogen (N), % 0 to 0.1
0.12 to 0.22
Phosphorus (P), % 0 to 0.045
0 to 0.045
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.015