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ASTM A232 Spring Steel vs. EN 1.4419 Stainless Steel

Both ASTM A232 spring steel and EN 1.4419 stainless steel are iron alloys. They have 86% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is ASTM A232 spring steel and the bottom bar is EN 1.4419 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 14
11 to 17
Fatigue Strength, MPa 1040
230 to 680
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
76
Shear Strength, MPa 1090
410 to 950
Tensile Strength: Ultimate (UTS), MPa 1790
660 to 1590
Tensile Strength: Yield (Proof), MPa 1610
370 to 1240

Thermal Properties

Latent Heat of Fusion, J/g 250
280
Maximum Temperature: Mechanical, °C 420
790
Melting Completion (Liquidus), °C 1460
1440
Melting Onset (Solidus), °C 1410
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 52
30
Thermal Expansion, µm/m-K 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
2.8
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
3.2

Otherwise Unclassified Properties

Base Metal Price, % relative 2.3
8.0
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 2.0
2.2
Embodied Energy, MJ/kg 28
30
Embodied Water, L/kg 51
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 250
95 to 170
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 64
24 to 57
Strength to Weight: Bending, points 42
22 to 39
Thermal Diffusivity, mm2/s 14
8.1
Thermal Shock Resistance, points 53
23 to 55

Alloy Composition

Carbon (C), % 0.48 to 0.53
0.36 to 0.42
Chromium (Cr), % 0.8 to 1.1
13 to 14.5
Iron (Fe), % 96.8 to 97.7
82 to 86
Manganese (Mn), % 0.7 to 0.9
0 to 1.0
Molybdenum (Mo), % 0
0.6 to 1.0
Phosphorus (P), % 0 to 0.020
0 to 0.040
Silicon (Si), % 0.15 to 0.35
0 to 1.0
Sulfur (S), % 0 to 0.035
0 to 0.015
Vanadium (V), % 0.15 to 0.3
0