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EN 1.4439 Stainless Steel vs. S44735 Stainless Steel

Both EN 1.4439 stainless steel and S44735 stainless steel are iron alloys. They have 86% of their average alloy composition in common. There are 29 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 EN 1.4439 stainless steel and the bottom bar is S44735 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220
220
Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 40
21
Fatigue Strength, MPa 270
300
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 79
82
Shear Strength, MPa 470
390
Tensile Strength: Ultimate (UTS), MPa 680
630
Tensile Strength: Yield (Proof), MPa 310
460

Thermal Properties

Latent Heat of Fusion, J/g 290
310
Maximum Temperature: Corrosion, °C 410
650
Maximum Temperature: Mechanical, °C 980
1100
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1410
1420
Specific Heat Capacity, J/kg-K 470
480
Thermal Expansion, µm/m-K 16
11

Otherwise Unclassified Properties

Base Metal Price, % relative 22
21
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 4.5
4.4
Embodied Energy, MJ/kg 61
61
Embodied Water, L/kg 160
180

Common Calculations

PREN (Pitting Resistance) 35
42
Resilience: Ultimate (Unit Rupture Work), MJ/m3 220
120
Resilience: Unit (Modulus of Resilience), kJ/m3 240
520
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
26
Strength to Weight: Axial, points 24
23
Strength to Weight: Bending, points 22
21
Thermal Shock Resistance, points 15
20

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.030
Chromium (Cr), % 16.5 to 18.5
28 to 30
Iron (Fe), % 58.7 to 66.9
60.7 to 68.4
Manganese (Mn), % 0 to 2.0
0 to 1.0
Molybdenum (Mo), % 4.0 to 5.0
3.6 to 4.2
Nickel (Ni), % 12.5 to 14.5
0 to 1.0
Niobium (Nb), % 0
0.2 to 1.0
Nitrogen (N), % 0.12 to 0.22
0 to 0.045
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.030
Titanium (Ti), % 0
0.2 to 1.0