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EN 1.4911 Stainless Steel vs. EN 1.4901 Stainless Steel

Both EN 1.4911 stainless steel and EN 1.4901 stainless steel are iron alloys. They have a moderately high 91% of their average alloy composition in common. There are 32 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 1.4911 stainless steel and the bottom bar is EN 1.4901 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 11
19
Fatigue Strength, MPa 530
310
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
76
Shear Strength, MPa 640
460
Tensile Strength: Ultimate (UTS), MPa 1070
740
Tensile Strength: Yield (Proof), MPa 970
490

Thermal Properties

Latent Heat of Fusion, J/g 270
260
Maximum Temperature: Corrosion, °C 430
380
Maximum Temperature: Mechanical, °C 700
650
Melting Completion (Liquidus), °C 1450
1490
Melting Onset (Solidus), °C 1410
1450
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 20
26
Thermal Expansion, µm/m-K 11
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.7
8.2
Electrical Conductivity: Equal Weight (Specific), % IACS 3.0
9.3

Otherwise Unclassified Properties

Base Metal Price, % relative 20
11
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 3.4
2.8
Embodied Energy, MJ/kg 49
40
Embodied Water, L/kg 130
89

Common Calculations

PREN (Pitting Resistance) 14
14
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
120
Resilience: Unit (Modulus of Resilience), kJ/m3 2410
620
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 38
26
Strength to Weight: Bending, points 30
23
Thermal Diffusivity, mm2/s 5.4
6.9
Thermal Shock Resistance, points 37
23

Alloy Composition

Aluminum (Al), % 0
0 to 0.020
Boron (B), % 0.0050 to 0.015
0.0010 to 0.0060
Carbon (C), % 0.050 to 0.12
0.070 to 0.13
Chromium (Cr), % 9.8 to 11.2
8.5 to 9.5
Cobalt (Co), % 5.0 to 7.0
0
Iron (Fe), % 75.7 to 83.8
85.8 to 89.1
Manganese (Mn), % 0.3 to 1.3
0.3 to 0.6
Molybdenum (Mo), % 0.5 to 1.0
0.3 to 0.6
Nickel (Ni), % 0.2 to 1.2
0 to 0.4
Niobium (Nb), % 0.2 to 0.5
0.040 to 0.090
Nitrogen (N), % 0 to 0.035
0.030 to 0.070
Phosphorus (P), % 0 to 0.025
0 to 0.020
Silicon (Si), % 0.1 to 0.8
0 to 0.5
Sulfur (S), % 0 to 0.015
0 to 0.010
Titanium (Ti), % 0
0 to 0.010
Tungsten (W), % 0 to 0.7
1.5 to 2.0
Vanadium (V), % 0.1 to 0.4
0.15 to 0.25
Zirconium (Zr), % 0
0 to 0.010