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EN 1.4945 Stainless Steel vs. EN 1.4710 Stainless Steel

Both EN 1.4945 stainless steel and EN 1.4710 stainless steel are iron alloys. They have 70% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is EN 1.4945 stainless steel and the bottom bar is EN 1.4710 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 220
260
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 19 to 34
20
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
74

Thermal Properties

Latent Heat of Fusion, J/g 290
290
Maximum Temperature: Corrosion, °C 520
360
Maximum Temperature: Mechanical, °C 920
750
Melting Completion (Liquidus), °C 1490
1430
Melting Onset (Solidus), °C 1440
1390
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 14
24
Thermal Expansion, µm/m-K 17
9.9

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
6.4
Electrical Conductivity: Equal Weight (Specific), % IACS 3.2
7.5

Otherwise Unclassified Properties

Base Metal Price, % relative 30
5.0
Density, g/cm3 8.1
7.7
Embodied Carbon, kg CO2/kg material 5.0
1.8
Embodied Energy, MJ/kg 73
24
Embodied Water, L/kg 150
76

Common Calculations

PREN (Pitting Resistance) 23
7.2
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Thermal Diffusivity, mm2/s 3.7
6.5

Alloy Composition

Carbon (C), % 0.040 to 0.1
0.2 to 0.35
Chromium (Cr), % 15.5 to 17.5
6.0 to 8.0
Iron (Fe), % 57.9 to 65.7
87.4 to 92.3
Manganese (Mn), % 0 to 1.5
0.5 to 1.0
Molybdenum (Mo), % 0
0 to 0.15
Nickel (Ni), % 15.5 to 17.5
0 to 0.5
Niobium (Nb), % 0.4 to 1.2
0
Nitrogen (N), % 0.060 to 0.14
0
Phosphorus (P), % 0 to 0.035
0 to 0.035
Silicon (Si), % 0.3 to 0.6
1.0 to 2.5
Sulfur (S), % 0 to 0.015
0 to 0.030
Tungsten (W), % 2.5 to 3.5
0