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EN 1.7216 Steel vs. EN 1.0031 Steel

Both EN 1.7216 steel and EN 1.0031 steel are iron alloys. They have a very high 98% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.7216 steel and the bottom bar is EN 1.0031 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 280
89
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 12 to 23
28
Fatigue Strength, MPa 290 to 440
160
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 410 to 560
200
Tensile Strength: Ultimate (UTS), MPa 650 to 930
310
Tensile Strength: Yield (Proof), MPa 400 to 690
210

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 420
400
Melting Completion (Liquidus), °C 1460
1470
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 46
53
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
8.0

Otherwise Unclassified Properties

Base Metal Price, % relative 2.4
1.8
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.5
1.4
Embodied Energy, MJ/kg 20
18
Embodied Water, L/kg 50
45

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 130
78
Resilience: Unit (Modulus of Resilience), kJ/m3 430 to 1280
120
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 23 to 33
11
Strength to Weight: Bending, points 21 to 27
13
Thermal Diffusivity, mm2/s 12
14
Thermal Shock Resistance, points 19 to 27
9.8

Alloy Composition

Carbon (C), % 0.27 to 0.34
0 to 0.1
Chromium (Cr), % 0.8 to 1.2
0
Iron (Fe), % 97.2 to 98.4
98.8 to 100
Manganese (Mn), % 0.35 to 0.6
0 to 0.7
Molybdenum (Mo), % 0.15 to 0.3
0
Phosphorus (P), % 0 to 0.035
0 to 0.045
Silicon (Si), % 0 to 0.35
0 to 0.35
Sulfur (S), % 0 to 0.035
0 to 0.045