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EN 1.4971 Stainless Steel vs. S44660 Stainless Steel

Both EN 1.4971 stainless steel and S44660 stainless steel are iron alloys. They have 59% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is EN 1.4971 stainless steel and the bottom bar is S44660 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 240
210
Elastic (Young's, Tensile) Modulus, GPa 210
210
Elongation at Break, % 34
20
Fatigue Strength, MPa 270
330
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 81
81
Shear Strength, MPa 530
410
Tensile Strength: Ultimate (UTS), MPa 800
660
Tensile Strength: Yield (Proof), MPa 340
510

Thermal Properties

Latent Heat of Fusion, J/g 300
300
Maximum Temperature: Corrosion, °C 570
640
Maximum Temperature: Mechanical, °C 1100
1100
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1410
1410
Specific Heat Capacity, J/kg-K 450
480
Thermal Conductivity, W/m-K 13
17
Thermal Expansion, µm/m-K 15
11

Otherwise Unclassified Properties

Base Metal Price, % relative 70
21
Density, g/cm3 8.4
7.7
Embodied Carbon, kg CO2/kg material 7.6
4.3
Embodied Energy, MJ/kg 110
61
Embodied Water, L/kg 300
180

Common Calculations

PREN (Pitting Resistance) 38
38
Resilience: Ultimate (Unit Rupture Work), MJ/m3 220
120
Resilience: Unit (Modulus of Resilience), kJ/m3 280
640
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 26
24
Strength to Weight: Bending, points 23
22
Thermal Diffusivity, mm2/s 3.4
4.5
Thermal Shock Resistance, points 19
21

Alloy Composition

Carbon (C), % 0.080 to 0.16
0 to 0.030
Chromium (Cr), % 20 to 22.5
25 to 28
Cobalt (Co), % 18.5 to 21
0
Iron (Fe), % 24.3 to 37.1
60.4 to 71
Manganese (Mn), % 0 to 2.0
0 to 1.0
Molybdenum (Mo), % 2.5 to 3.5
3.0 to 4.0
Nickel (Ni), % 19 to 21
1.0 to 3.5
Niobium (Nb), % 0.75 to 1.3
0.2 to 1.0
Nitrogen (N), % 0.1 to 0.2
0 to 0.040
Phosphorus (P), % 0 to 0.035
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.030
Titanium (Ti), % 0
0.2 to 1.0
Tungsten (W), % 2.0 to 3.0
0