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EN 1.4961 Stainless Steel vs. EN 1.4511 Stainless Steel

Both EN 1.4961 stainless steel and EN 1.4511 stainless steel are iron alloys. They have 86% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.4961 stainless steel and the bottom bar is EN 1.4511 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
180
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 39
25
Fatigue Strength, MPa 190
180
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
77
Shear Strength, MPa 420
330
Tensile Strength: Ultimate (UTS), MPa 610
510
Tensile Strength: Yield (Proof), MPa 220
260

Thermal Properties

Latent Heat of Fusion, J/g 290
280
Maximum Temperature: Corrosion, °C 510
480
Maximum Temperature: Mechanical, °C 890
870
Melting Completion (Liquidus), °C 1430
1440
Melting Onset (Solidus), °C 1390
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 16
25
Thermal Expansion, µm/m-K 16
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 21
11
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 4.0
2.5
Embodied Energy, MJ/kg 57
37
Embodied Water, L/kg 140
120

Common Calculations

PREN (Pitting Resistance) 16
17
Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
110
Resilience: Unit (Modulus of Resilience), kJ/m3 120
170
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 22
18
Strength to Weight: Bending, points 20
18
Thermal Diffusivity, mm2/s 4.3
6.7
Thermal Shock Resistance, points 14
19

Alloy Composition

Carbon (C), % 0.040 to 0.1
0 to 0.050
Chromium (Cr), % 15 to 17
16 to 18
Iron (Fe), % 65.6 to 72.3
78.9 to 84
Manganese (Mn), % 0 to 1.5
0 to 1.0
Nickel (Ni), % 12 to 14
0
Niobium (Nb), % 0.4 to 1.2
0 to 1.0
Phosphorus (P), % 0 to 0.035
0 to 0.040
Silicon (Si), % 0.3 to 0.6
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.015