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EN 1.4911 Stainless Steel vs. EN 1.4510 Stainless Steel

Both EN 1.4911 stainless steel and EN 1.4510 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 1.4911 stainless steel and the bottom bar is EN 1.4510 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 11
26
Fatigue Strength, MPa 530
190
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
77
Shear Strength, MPa 640
330
Tensile Strength: Ultimate (UTS), MPa 1070
510
Tensile Strength: Yield (Proof), MPa 970
270

Thermal Properties

Latent Heat of Fusion, J/g 270
280
Maximum Temperature: Corrosion, °C 430
500
Maximum Temperature: Mechanical, °C 700
870
Melting Completion (Liquidus), °C 1450
1440
Melting Onset (Solidus), °C 1410
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 20
25
Thermal Expansion, µm/m-K 11
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.7
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 3.0
3.4

Otherwise Unclassified Properties

Base Metal Price, % relative 20
8.5
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 3.4
2.2
Embodied Energy, MJ/kg 49
32
Embodied Water, L/kg 130
120

Common Calculations

PREN (Pitting Resistance) 14
17
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
110
Resilience: Unit (Modulus of Resilience), kJ/m3 2410
180
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 38
18
Strength to Weight: Bending, points 30
18
Thermal Diffusivity, mm2/s 5.4
6.7
Thermal Shock Resistance, points 37
17

Alloy Composition

Boron (B), % 0.0050 to 0.015
0
Carbon (C), % 0.050 to 0.12
0 to 0.050
Chromium (Cr), % 9.8 to 11.2
16 to 18
Cobalt (Co), % 5.0 to 7.0
0
Iron (Fe), % 75.7 to 83.8
79.1 to 83.9
Manganese (Mn), % 0.3 to 1.3
0 to 1.0
Molybdenum (Mo), % 0.5 to 1.0
0
Nickel (Ni), % 0.2 to 1.2
0
Niobium (Nb), % 0.2 to 0.5
0
Nitrogen (N), % 0 to 0.035
0
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0.1 to 0.8
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.015
Titanium (Ti), % 0
0.15 to 0.8
Tungsten (W), % 0 to 0.7
0
Vanadium (V), % 0.1 to 0.4
0