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EN 1.7216 Steel vs. ASTM A242 HSLA Steel

Both EN 1.7216 steel and ASTM A242 HSLA 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 ASTM A242 HSLA steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 280
150
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 12 to 23
22
Fatigue Strength, MPa 290 to 440
230
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 410 to 560
310
Tensile Strength: Ultimate (UTS), MPa 650 to 930
490
Tensile Strength: Yield (Proof), MPa 400 to 690
330

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 420
400
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 46
52
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 2.4
1.9
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
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 130
95
Resilience: Unit (Modulus of Resilience), kJ/m3 430 to 1280
290
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 23 to 33
17
Strength to Weight: Bending, points 21 to 27
17
Thermal Diffusivity, mm2/s 12
14
Thermal Shock Resistance, points 19 to 27
14

Alloy Composition

Carbon (C), % 0.27 to 0.34
0 to 0.15
Chromium (Cr), % 0.8 to 1.2
0
Copper (Cu), % 0
0.2 to 0.45
Iron (Fe), % 97.2 to 98.4
98.2 to 99.8
Manganese (Mn), % 0.35 to 0.6
0 to 1.0
Molybdenum (Mo), % 0.15 to 0.3
0
Phosphorus (P), % 0 to 0.035
0 to 0.15
Silicon (Si), % 0 to 0.35
0
Sulfur (S), % 0 to 0.035
0 to 0.050