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ASTM A229 Spring Steel vs. ASTM A182 Grade F911

Both ASTM A229 spring steel and ASTM A182 grade F911 are iron alloys. They have 88% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is ASTM A229 spring steel and the bottom bar is ASTM A182 grade F911.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 490 to 550
220
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 14
20
Fatigue Strength, MPa 710 to 790
350
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 72
76
Shear Strength, MPa 1020 to 1140
430
Tensile Strength: Ultimate (UTS), MPa 1690 to 1890
690
Tensile Strength: Yield (Proof), MPa 1100 to 1230
500

Thermal Properties

Latent Heat of Fusion, J/g 250
270
Maximum Temperature: Mechanical, °C 400
600
Melting Completion (Liquidus), °C 1450
1480
Melting Onset (Solidus), °C 1410
1440
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 50
26
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
9.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
10

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
9.5
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.4
2.8
Embodied Energy, MJ/kg 19
40
Embodied Water, L/kg 46
90

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 200 to 230
130
Resilience: Unit (Modulus of Resilience), kJ/m3 3260 to 4080
650
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 60 to 67
24
Strength to Weight: Bending, points 40 to 43
22
Thermal Diffusivity, mm2/s 14
6.9
Thermal Shock Resistance, points 54 to 60
19

Alloy Composition

Aluminum (Al), % 0
0 to 0.020
Boron (B), % 0
0.00030 to 0.0060
Carbon (C), % 0.55 to 0.85
0.090 to 0.13
Chromium (Cr), % 0
8.5 to 9.5
Iron (Fe), % 97.5 to 99
86.2 to 88.9
Manganese (Mn), % 0.3 to 1.2
0.3 to 0.6
Molybdenum (Mo), % 0
0.9 to 1.1
Nickel (Ni), % 0
0 to 0.4
Niobium (Nb), % 0
0.060 to 0.1
Nitrogen (N), % 0
0.040 to 0.090
Phosphorus (P), % 0 to 0.040
0 to 0.020
Silicon (Si), % 0.15 to 0.35
0.1 to 0.5
Sulfur (S), % 0 to 0.050
0 to 0.010
Titanium (Ti), % 0
0 to 0.010
Tungsten (W), % 0
0.9 to 1.1
Vanadium (V), % 0
0.18 to 0.25
Zirconium (Zr), % 0
0 to 0.010