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EN 1.1221 Steel vs. EN 1.4855 Stainless Steel

Both EN 1.1221 steel and EN 1.4855 stainless steel are iron alloys. They have 49% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is EN 1.1221 steel and the bottom bar is EN 1.4855 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210 to 250
150
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 10 to 21
4.6
Fatigue Strength, MPa 240 to 340
120
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 72
77
Tensile Strength: Ultimate (UTS), MPa 730 to 870
500
Tensile Strength: Yield (Proof), MPa 390 to 550
250

Thermal Properties

Latent Heat of Fusion, J/g 250
320
Maximum Temperature: Mechanical, °C 400
1050
Melting Completion (Liquidus), °C 1460
1400
Melting Onset (Solidus), °C 1410
1350
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 48
14
Thermal Expansion, µm/m-K 12
16

Otherwise Unclassified Properties

Base Metal Price, % relative 2.1
34
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.5
5.9
Embodied Energy, MJ/kg 19
85
Embodied Water, L/kg 47
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 67 to 130
19
Resilience: Unit (Modulus of Resilience), kJ/m3 410 to 800
160
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 26 to 31
18
Strength to Weight: Bending, points 23 to 26
18
Thermal Diffusivity, mm2/s 13
3.7
Thermal Shock Resistance, points 23 to 28
11

Alloy Composition

Carbon (C), % 0.57 to 0.65
0.3 to 0.5
Chromium (Cr), % 0 to 0.4
23 to 25
Iron (Fe), % 97.1 to 98.8
42.6 to 51.9
Manganese (Mn), % 0.6 to 0.9
0 to 2.0
Molybdenum (Mo), % 0 to 0.1
0 to 0.5
Nickel (Ni), % 0 to 0.4
23 to 25
Niobium (Nb), % 0
0.8 to 1.8
Phosphorus (P), % 0 to 0.035
0 to 0.040
Silicon (Si), % 0 to 0.4
1.0 to 2.5
Sulfur (S), % 0 to 0.035
0 to 0.030