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EN 1.7149 Steel vs. EN 1.4961 Stainless Steel

Both EN 1.7149 steel and EN 1.4961 stainless steel are iron alloys. They have 71% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is EN 1.7149 steel and the bottom bar is EN 1.4961 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150 to 180
180
Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
76
Tensile Strength: Ultimate (UTS), MPa 500 to 1460
610

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 420
890
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
16
Thermal Expansion, µm/m-K 13
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 2.3
21
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.5
4.0
Embodied Energy, MJ/kg 19
57
Embodied Water, L/kg 52
140

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 18 to 52
22
Strength to Weight: Bending, points 18 to 36
20
Thermal Diffusivity, mm2/s 12
4.3
Thermal Shock Resistance, points 15 to 42
14

Alloy Composition

Carbon (C), % 0.17 to 0.22
0.040 to 0.1
Chromium (Cr), % 1.0 to 1.3
15 to 17
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 96.5 to 97.7
65.6 to 72.3
Manganese (Mn), % 1.1 to 1.4
0 to 1.5
Nickel (Ni), % 0
12 to 14
Niobium (Nb), % 0
0.4 to 1.2
Phosphorus (P), % 0 to 0.025
0 to 0.035
Silicon (Si), % 0 to 0.3
0.3 to 0.6
Sulfur (S), % 0.020 to 0.040
0 to 0.015