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EN 1.3963 Alloy vs. ASTM A227 Spring Steel

Both EN 1.3963 alloy and ASTM A227 spring steel are iron alloys. They have 63% of their average alloy composition in common. There are 23 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is EN 1.3963 alloy and the bottom bar is ASTM A227 spring steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 29
12
Poisson's Ratio 0.3
0.29
Shear Modulus, GPa 72
72
Shear Strength, MPa 290
1030 to 1330
Tensile Strength: Ultimate (UTS), MPa 440
1720 to 2220
Tensile Strength: Yield (Proof), MPa 310
1430 to 1850

Thermal Properties

Latent Heat of Fusion, J/g 270
250
Melting Completion (Liquidus), °C 1430
1450
Melting Onset (Solidus), °C 1390
1410
Specific Heat Capacity, J/kg-K 460
470
Thermal Expansion, µm/m-K 1.6
12

Otherwise Unclassified Properties

Base Metal Price, % relative 25
1.8
Density, g/cm3 8.2
7.8
Embodied Carbon, kg CO2/kg material 4.8
1.4
Embodied Energy, MJ/kg 66
19
Embodied Water, L/kg 110
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
200 to 260
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 15
61 to 79
Strength to Weight: Bending, points 16
41 to 48
Thermal Shock Resistance, points 110
55 to 71

Alloy Composition

Carbon (C), % 0 to 0.050
0.45 to 0.85
Chromium (Cr), % 0 to 0.25
0
Iron (Fe), % 60.5 to 64.9
97.4 to 99.1
Manganese (Mn), % 0 to 0.5
0.3 to 1.3
Molybdenum (Mo), % 0 to 1.0
0
Nickel (Ni), % 35 to 37
0
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0 to 0.5
0.15 to 0.35
Sulfur (S), % 0.1 to 0.2
0 to 0.050