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EN 1.4669 Stainless Steel vs. EN 1.4749 Stainless Steel

Both EN 1.4669 stainless steel and EN 1.4749 stainless steel are iron alloys. They have a moderately high 94% of their average alloy composition in common. There are 33 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is EN 1.4669 stainless steel and the bottom bar is EN 1.4749 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 260
180
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 28
16
Fatigue Strength, MPa 330
190
Poisson's Ratio 0.27
0.27
Shear Modulus, GPa 78
80
Shear Strength, MPa 500
370
Tensile Strength: Ultimate (UTS), MPa 780
600
Tensile Strength: Yield (Proof), MPa 450
320

Thermal Properties

Latent Heat of Fusion, J/g 290
300
Maximum Temperature: Corrosion, °C 440
450
Maximum Temperature: Mechanical, °C 1030
1100
Melting Completion (Liquidus), °C 1420
1420
Melting Onset (Solidus), °C 1370
1380
Specific Heat Capacity, J/kg-K 480
490
Thermal Conductivity, W/m-K 15
17
Thermal Expansion, µm/m-K 13
9.6

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
2.9

Otherwise Unclassified Properties

Base Metal Price, % relative 13
13
Density, g/cm3 7.7
7.6
Embodied Carbon, kg CO2/kg material 2.6
2.5
Embodied Energy, MJ/kg 38
36
Embodied Water, L/kg 160
160

Common Calculations

PREN (Pitting Resistance) 26
31
Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
80
Resilience: Unit (Modulus of Resilience), kJ/m3 510
250
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
26
Strength to Weight: Axial, points 28
22
Strength to Weight: Bending, points 24
21
Thermal Diffusivity, mm2/s 4.0
4.6
Thermal Shock Resistance, points 21
22

Alloy Composition

Carbon (C), % 0 to 0.045
0.15 to 0.2
Chromium (Cr), % 21.5 to 24
26 to 29
Copper (Cu), % 1.6 to 3.0
0
Iron (Fe), % 65.2 to 74.8
68.5 to 73.7
Manganese (Mn), % 1.0 to 3.0
0 to 1.0
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 1.0 to 3.0
0
Nitrogen (N), % 0.12 to 0.2
0.15 to 0.25
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.015