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EN 1.4630 Stainless Steel vs. EN 1.4911 Stainless Steel

Both EN 1.4630 stainless steel and EN 1.4911 stainless steel are iron alloys. They have a moderately high 92% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.4630 stainless steel and the bottom bar is EN 1.4911 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 23
11
Fatigue Strength, MPa 170
530
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
76
Shear Strength, MPa 300
640
Tensile Strength: Ultimate (UTS), MPa 480
1070
Tensile Strength: Yield (Proof), MPa 250
970

Thermal Properties

Latent Heat of Fusion, J/g 290
270
Maximum Temperature: Corrosion, °C 520
430
Maximum Temperature: Mechanical, °C 800
700
Melting Completion (Liquidus), °C 1440
1450
Melting Onset (Solidus), °C 1390
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 28
20
Thermal Expansion, µm/m-K 10
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.8
2.7
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
3.0

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
20
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 2.5
3.4
Embodied Energy, MJ/kg 36
49
Embodied Water, L/kg 120
130

Common Calculations

PREN (Pitting Resistance) 15
14
Resilience: Ultimate (Unit Rupture Work), MJ/m3 92
120
Resilience: Unit (Modulus of Resilience), kJ/m3 160
2410
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 17
38
Strength to Weight: Bending, points 18
30
Thermal Diffusivity, mm2/s 7.5
5.4
Thermal Shock Resistance, points 17
37

Alloy Composition

Aluminum (Al), % 0 to 1.5
0
Boron (B), % 0
0.0050 to 0.015
Carbon (C), % 0 to 0.030
0.050 to 0.12
Chromium (Cr), % 13 to 16
9.8 to 11.2
Cobalt (Co), % 0
5.0 to 7.0
Copper (Cu), % 0 to 0.5
0
Iron (Fe), % 77.1 to 86.7
75.7 to 83.8
Manganese (Mn), % 0 to 1.0
0.3 to 1.3
Molybdenum (Mo), % 0 to 0.5
0.5 to 1.0
Nickel (Ni), % 0 to 0.5
0.2 to 1.2
Niobium (Nb), % 0 to 0.5
0.2 to 0.5
Nitrogen (N), % 0
0 to 0.035
Phosphorus (P), % 0 to 0.050
0 to 0.025
Silicon (Si), % 0.2 to 1.5
0.1 to 0.8
Sulfur (S), % 0 to 0.050
0 to 0.015
Titanium (Ti), % 0.15 to 0.8
0
Tungsten (W), % 0
0 to 0.7
Vanadium (V), % 0
0.1 to 0.4