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EN 1.7218 +A Steel vs. Annealed S46910 Stainless Steel

Both EN 1.7218 +A steel and annealed S46910 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 73% of their average alloy composition in common. There are 27 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is EN 1.7218 +A steel and the bottom bar is annealed S46910 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
270
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 21
11
Fatigue Strength, MPa 290
250
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
76
Shear Strength, MPa 390
410
Tensile Strength: Ultimate (UTS), MPa 610
680
Tensile Strength: Yield (Proof), MPa 410
450

Thermal Properties

Latent Heat of Fusion, J/g 250
280
Maximum Temperature: Mechanical, °C 420
810
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Expansion, µm/m-K 13
11

Otherwise Unclassified Properties

Base Metal Price, % relative 2.6
18
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.5
4.1
Embodied Energy, MJ/kg 20
55
Embodied Water, L/kg 52
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
69
Resilience: Unit (Modulus of Resilience), kJ/m3 450
510
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 22
24
Strength to Weight: Bending, points 20
22
Thermal Shock Resistance, points 18
23

Alloy Composition

Aluminum (Al), % 0 to 0.040
0.15 to 0.5
Carbon (C), % 0.22 to 0.29
0 to 0.030
Chromium (Cr), % 0.9 to 1.2
11 to 13
Copper (Cu), % 0 to 0.3
1.5 to 3.5
Iron (Fe), % 96.2 to 98.1
65 to 76
Manganese (Mn), % 0.6 to 0.9
0 to 1.0
Molybdenum (Mo), % 0.15 to 0.3
3.0 to 5.0
Nickel (Ni), % 0 to 0.3
8.0 to 10
Phosphorus (P), % 0 to 0.035
0 to 0.030
Silicon (Si), % 0 to 0.4
0 to 0.7
Sulfur (S), % 0 to 0.035
0 to 0.015
Titanium (Ti), % 0
0.5 to 1.2