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S66286 Stainless Steel vs. ASTM A227 Spring Steel

Both S66286 stainless steel and ASTM A227 spring steel are iron alloys. They have 55% 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 S66286 stainless steel 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, % 17 to 40
12
Fatigue Strength, MPa 240 to 410
900 to 1160
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 75
72
Shear Strength, MPa 420 to 630
1030 to 1330
Tensile Strength: Ultimate (UTS), MPa 620 to 1020
1720 to 2220
Tensile Strength: Yield (Proof), MPa 280 to 670
1430 to 1850

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Maximum Temperature: Mechanical, °C 920
400
Melting Completion (Liquidus), °C 1430
1450
Melting Onset (Solidus), °C 1370
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 15
52
Thermal Expansion, µm/m-K 17
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.2
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 26
1.8
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 6.0
1.4
Embodied Energy, MJ/kg 87
19
Embodied Water, L/kg 170
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 150 to 200
200 to 260
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 22 to 36
61 to 79
Strength to Weight: Bending, points 20 to 28
41 to 48
Thermal Diffusivity, mm2/s 4.0
14
Thermal Shock Resistance, points 13 to 22
55 to 71

Alloy Composition

Aluminum (Al), % 0 to 0.35
0
Boron (B), % 0.0010 to 0.010
0
Carbon (C), % 0 to 0.080
0.45 to 0.85
Chromium (Cr), % 13.5 to 16
0
Iron (Fe), % 49.1 to 59.5
97.4 to 99.1
Manganese (Mn), % 0 to 2.0
0.3 to 1.3
Molybdenum (Mo), % 1.0 to 1.5
0
Nickel (Ni), % 24 to 27
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0.15 to 0.35
Sulfur (S), % 0 to 0.030
0 to 0.050
Titanium (Ti), % 1.9 to 2.4
0
Vanadium (V), % 0.1 to 0.5
0

Comparable Variants