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EN 1.4449 Stainless Steel vs. EN 1.4874 Stainless Steel

Both EN 1.4449 stainless steel and EN 1.4874 stainless steel are iron alloys. They have 65% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is EN 1.4449 stainless steel and the bottom bar is EN 1.4874 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
140
Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 48
6.7
Fatigue Strength, MPa 240
180
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
80
Tensile Strength: Ultimate (UTS), MPa 620
480
Tensile Strength: Yield (Proof), MPa 250
360

Thermal Properties

Latent Heat of Fusion, J/g 290
300
Maximum Temperature: Corrosion, °C 410
560
Maximum Temperature: Mechanical, °C 960
1150
Melting Completion (Liquidus), °C 1440
1450
Melting Onset (Solidus), °C 1400
1400
Specific Heat Capacity, J/kg-K 470
450
Thermal Conductivity, W/m-K 15
13
Thermal Expansion, µm/m-K 16
15

Otherwise Unclassified Properties

Base Metal Price, % relative 19
70
Density, g/cm3 7.9
8.4
Embodied Carbon, kg CO2/kg material 3.9
7.6
Embodied Energy, MJ/kg 54
110
Embodied Water, L/kg 150
290

Common Calculations

PREN (Pitting Resistance) 27
34
Resilience: Ultimate (Unit Rupture Work), MJ/m3 240
29
Resilience: Unit (Modulus of Resilience), kJ/m3 160
310
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 22
16
Strength to Weight: Bending, points 20
16
Thermal Diffusivity, mm2/s 4.0
3.3
Thermal Shock Resistance, points 14
11

Alloy Composition

Carbon (C), % 0 to 0.035
0.35 to 0.65
Chromium (Cr), % 17 to 18.2
19 to 22
Cobalt (Co), % 0
18.5 to 22
Copper (Cu), % 0 to 1.0
0
Iron (Fe), % 62.4 to 69.3
23 to 38.9
Manganese (Mn), % 0 to 2.0
0 to 2.0
Molybdenum (Mo), % 2.3 to 2.8
2.5 to 3.0
Nickel (Ni), % 11.5 to 12.5
18 to 22
Niobium (Nb), % 0
0.75 to 1.3
Nitrogen (N), % 0 to 0.080
0
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
Tungsten (W), % 0
2.0 to 3.0