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ASTM A227 Spring Steel vs. EN 1.5414 Steel

Both ASTM A227 spring steel and EN 1.5414 steel are iron alloys. They have a very high 99% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is ASTM A227 spring steel and the bottom bar is EN 1.5414 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 500 to 640
170 to 180
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 12
22
Fatigue Strength, MPa 900 to 1160
250 to 270
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 72
73
Shear Strength, MPa 1030 to 1330
350 to 370
Tensile Strength: Ultimate (UTS), MPa 1720 to 2220
550 to 580
Tensile Strength: Yield (Proof), MPa 1430 to 1850
350 to 380

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 400
410
Melting Completion (Liquidus), °C 1450
1470
Melting Onset (Solidus), °C 1410
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 52
44
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
2.6
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.4
1.6
Embodied Energy, MJ/kg 19
21
Embodied Water, L/kg 46
50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 200 to 260
110
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 61 to 79
19 to 20
Strength to Weight: Bending, points 41 to 48
19 to 20
Thermal Diffusivity, mm2/s 14
12
Thermal Shock Resistance, points 55 to 71
16 to 17

Alloy Composition

Carbon (C), % 0.45 to 0.85
0 to 0.2
Chromium (Cr), % 0
0 to 0.3
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 97.4 to 99.1
96.4 to 98.7
Manganese (Mn), % 0.3 to 1.3
0.9 to 1.5
Molybdenum (Mo), % 0
0.45 to 0.6
Nickel (Ni), % 0
0 to 0.3
Nitrogen (N), % 0
0 to 0.012
Phosphorus (P), % 0 to 0.040
0 to 0.015
Silicon (Si), % 0.15 to 0.35
0 to 0.4
Sulfur (S), % 0 to 0.050
0 to 0.0050

Comparable Variants