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EN 1.4981 Stainless Steel vs. EN 1.6220 Steel

Both EN 1.4981 stainless steel and EN 1.6220 steel are iron alloys. They have 65% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is EN 1.4981 stainless steel and the bottom bar is EN 1.6220 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
170
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 39
23 to 25
Fatigue Strength, MPa 210
240 to 250
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Tensile Strength: Ultimate (UTS), MPa 610
550 to 580
Tensile Strength: Yield (Proof), MPa 240
340

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 940
400
Melting Completion (Liquidus), °C 1440
1460
Melting Onset (Solidus), °C 1400
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 16
52
Thermal Expansion, µm/m-K 16
13

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 25
2.1
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 4.8
1.5
Embodied Energy, MJ/kg 67
19
Embodied Water, L/kg 150
48

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
110 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 150
300 to 310
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 21
19 to 20
Strength to Weight: Bending, points 20
19 to 20
Thermal Diffusivity, mm2/s 4.3
14
Thermal Shock Resistance, points 14
16 to 17

Alloy Composition

Carbon (C), % 0.040 to 0.1
0.17 to 0.23
Chromium (Cr), % 15.5 to 17.5
0
Iron (Fe), % 59.6 to 66.7
96.7 to 98.8
Manganese (Mn), % 0 to 1.5
1.0 to 1.6
Molybdenum (Mo), % 1.6 to 2.0
0
Nickel (Ni), % 15.5 to 17.5
0 to 0.8
Niobium (Nb), % 0.4 to 1.2
0
Phosphorus (P), % 0 to 0.035
0 to 0.020
Silicon (Si), % 0.3 to 0.6
0 to 0.6
Sulfur (S), % 0 to 0.015
0 to 0.030