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EN 1.4662 Stainless Steel vs. ASTM A227 Spring Steel

Both EN 1.4662 stainless steel and ASTM A227 spring steel are iron alloys. They have 67% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is EN 1.4662 stainless steel and the bottom bar is ASTM A227 spring steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 28
12
Fatigue Strength, MPa 430 to 450
900 to 1160
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 79
72
Shear Strength, MPa 520 to 540
1030 to 1330
Tensile Strength: Ultimate (UTS), MPa 810 to 830
1720 to 2220
Tensile Strength: Yield (Proof), MPa 580 to 620
1430 to 1850

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 1090
400
Melting Completion (Liquidus), °C 1430
1450
Melting Onset (Solidus), °C 1380
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
52
Thermal Expansion, µm/m-K 13
12

Electrical Properties

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

Otherwise Unclassified Properties

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

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 210
200 to 260
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 29 to 30
61 to 79
Strength to Weight: Bending, points 25
41 to 48
Thermal Diffusivity, mm2/s 3.9
14
Thermal Shock Resistance, points 22
55 to 71

Alloy Composition

Carbon (C), % 0 to 0.030
0.45 to 0.85
Chromium (Cr), % 23 to 25
0
Copper (Cu), % 0.1 to 0.8
0
Iron (Fe), % 62.6 to 70.2
97.4 to 99.1
Manganese (Mn), % 2.5 to 4.0
0.3 to 1.3
Molybdenum (Mo), % 1.0 to 2.0
0
Nickel (Ni), % 3.0 to 4.5
0
Nitrogen (N), % 0.2 to 0.3
0
Phosphorus (P), % 0 to 0.035
0 to 0.040
Silicon (Si), % 0 to 0.7
0.15 to 0.35
Sulfur (S), % 0 to 0.0050
0 to 0.050