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EN 1.4612 Stainless Steel vs. EN 1.1221 Steel

Both EN 1.4612 stainless steel and EN 1.1221 steel are iron alloys. They have 74% of their average alloy composition in common. There are 25 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 1.4612 stainless steel and the bottom bar is EN 1.1221 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 11
10 to 21
Fatigue Strength, MPa 860 to 950
240 to 340
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
72
Shear Strength, MPa 1010 to 1110
450 to 520
Tensile Strength: Ultimate (UTS), MPa 1690 to 1850
730 to 870
Tensile Strength: Yield (Proof), MPa 1570 to 1730
390 to 550

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Maximum Temperature: Mechanical, °C 790
400
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1400
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Expansion, µm/m-K 11
12

Otherwise Unclassified Properties

Base Metal Price, % relative 16
2.1
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 3.6
1.5
Embodied Energy, MJ/kg 50
19
Embodied Water, L/kg 140
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 190 to 210
67 to 130
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 60 to 65
26 to 31
Strength to Weight: Bending, points 40 to 43
23 to 26
Thermal Shock Resistance, points 58 to 63
23 to 28

Alloy Composition

Aluminum (Al), % 1.4 to 1.8
0
Carbon (C), % 0 to 0.015
0.57 to 0.65
Chromium (Cr), % 11 to 12.5
0 to 0.4
Iron (Fe), % 71.5 to 75.5
97.1 to 98.8
Manganese (Mn), % 0 to 0.1
0.6 to 0.9
Molybdenum (Mo), % 1.8 to 2.3
0 to 0.1
Nickel (Ni), % 10.2 to 11.3
0 to 0.4
Nitrogen (N), % 0 to 0.010
0
Phosphorus (P), % 0 to 0.010
0 to 0.035
Silicon (Si), % 0 to 0.1
0 to 0.4
Sulfur (S), % 0 to 0.0050
0 to 0.035
Titanium (Ti), % 0.2 to 0.5
0

Comparable Variants