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EN 1.4749 Stainless Steel vs. EN 1.4611 Stainless Steel

Both EN 1.4749 stainless steel and EN 1.4611 stainless steel are iron alloys. Both are furnished in the annealed condition. They have a moderately high 93% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.4749 stainless steel and the bottom bar is EN 1.4611 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
180
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 16
21
Fatigue Strength, MPa 190
180
Poisson's Ratio 0.27
0.27
Shear Modulus, GPa 80
78
Shear Strength, MPa 370
330
Tensile Strength: Ultimate (UTS), MPa 600
530
Tensile Strength: Yield (Proof), MPa 320
280

Thermal Properties

Latent Heat of Fusion, J/g 300
290
Maximum Temperature: Corrosion, °C 450
530
Maximum Temperature: Mechanical, °C 1100
970
Melting Completion (Liquidus), °C 1420
1440
Melting Onset (Solidus), °C 1380
1390
Specific Heat Capacity, J/kg-K 490
480
Thermal Conductivity, W/m-K 17
21
Thermal Expansion, µm/m-K 9.6
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.5
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
3.0

Otherwise Unclassified Properties

Base Metal Price, % relative 13
11
Density, g/cm3 7.6
7.7
Embodied Carbon, kg CO2/kg material 2.5
2.5
Embodied Energy, MJ/kg 36
36
Embodied Water, L/kg 160
140

Common Calculations

PREN (Pitting Resistance) 31
21
Resilience: Ultimate (Unit Rupture Work), MJ/m3 80
91
Resilience: Unit (Modulus of Resilience), kJ/m3 250
190
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 26
25
Strength to Weight: Axial, points 22
19
Strength to Weight: Bending, points 21
19
Thermal Diffusivity, mm2/s 4.6
5.7
Thermal Shock Resistance, points 22
18

Alloy Composition

Aluminum (Al), % 0
0 to 0.050
Carbon (C), % 0.15 to 0.2
0 to 0.030
Chromium (Cr), % 26 to 29
19 to 22
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 68.5 to 73.7
73.3 to 80.8
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0
0 to 0.5
Nitrogen (N), % 0.15 to 0.25
0
Phosphorus (P), % 0 to 0.040
0 to 0.050
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.050
Titanium (Ti), % 0
0.2 to 1.0