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EN 1.6956 Steel vs. EN 1.4710 Stainless Steel

Both EN 1.6956 steel and EN 1.4710 stainless steel are iron alloys. They have a moderately high 92% of their average alloy composition in common. There are 23 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is EN 1.6956 steel and the bottom bar is EN 1.4710 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 370
260
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 9.6
20
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
74

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 440
750
Melting Completion (Liquidus), °C 1460
1430
Melting Onset (Solidus), °C 1420
1390
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 46
24
Thermal Expansion, µm/m-K 13
9.9

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.0
6.4
Electrical Conductivity: Equal Weight (Specific), % IACS 9.1
7.5

Otherwise Unclassified Properties

Base Metal Price, % relative 5.0
5.0
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 2.2
1.8
Embodied Energy, MJ/kg 31
24
Embodied Water, L/kg 60
76

Common Calculations

PREN (Pitting Resistance) 2.8
7.2
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Thermal Diffusivity, mm2/s 12
6.5

Alloy Composition

Carbon (C), % 0.28 to 0.38
0.2 to 0.35
Chromium (Cr), % 1.0 to 1.7
6.0 to 8.0
Iron (Fe), % 92.4 to 95.3
87.4 to 92.3
Manganese (Mn), % 0.15 to 0.4
0.5 to 1.0
Molybdenum (Mo), % 0.3 to 0.6
0 to 0.15
Nickel (Ni), % 2.9 to 3.8
0 to 0.5
Phosphorus (P), % 0 to 0.035
0 to 0.035
Silicon (Si), % 0 to 0.4
1.0 to 2.5
Sulfur (S), % 0 to 0.035
0 to 0.030
Vanadium (V), % 0.080 to 0.25
0