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ASTM A229 Spring Steel vs. EN 1.4662 Stainless Steel

Both ASTM A229 spring steel and EN 1.4662 stainless steel are iron alloys. They have 67% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is ASTM A229 spring steel and the bottom bar is EN 1.4662 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 14
28
Fatigue Strength, MPa 710 to 790
430 to 450
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 72
79
Shear Strength, MPa 1020 to 1140
520 to 540
Tensile Strength: Ultimate (UTS), MPa 1690 to 1890
810 to 830
Tensile Strength: Yield (Proof), MPa 1100 to 1230
580 to 620

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 400
1090
Melting Completion (Liquidus), °C 1450
1430
Melting Onset (Solidus), °C 1410
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 50
15
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
16
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 1.4
3.2
Embodied Energy, MJ/kg 19
45
Embodied Water, L/kg 46
170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 200 to 230
210
Resilience: Unit (Modulus of Resilience), kJ/m3 3260 to 4080
840 to 940
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 60 to 67
29 to 30
Strength to Weight: Bending, points 40 to 43
25
Thermal Diffusivity, mm2/s 14
3.9
Thermal Shock Resistance, points 54 to 60
22

Alloy Composition

Carbon (C), % 0.55 to 0.85
0 to 0.030
Chromium (Cr), % 0
23 to 25
Copper (Cu), % 0
0.1 to 0.8
Iron (Fe), % 97.5 to 99
62.6 to 70.2
Manganese (Mn), % 0.3 to 1.2
2.5 to 4.0
Molybdenum (Mo), % 0
1.0 to 2.0
Nickel (Ni), % 0
3.0 to 4.5
Nitrogen (N), % 0
0.2 to 0.3
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0.15 to 0.35
0 to 0.7
Sulfur (S), % 0 to 0.050
0 to 0.0050

Comparable Variants