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ASTM A369 Grade FP92 vs. ASTM A229 Spring Steel

Both ASTM A369 grade FP92 and ASTM A229 spring steel 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 (1, in this case) are not shown.

For each property being compared, the top bar is ASTM A369 grade FP92 and the bottom bar is ASTM A229 spring steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210
490 to 550
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 19
14
Fatigue Strength, MPa 330
710 to 790
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
72
Shear Strength, MPa 440
1020 to 1140
Tensile Strength: Ultimate (UTS), MPa 710
1690 to 1890
Tensile Strength: Yield (Proof), MPa 490
1100 to 1230

Thermal Properties

Latent Heat of Fusion, J/g 260
250
Maximum Temperature: Mechanical, °C 590
400
Melting Completion (Liquidus), °C 1490
1450
Melting Onset (Solidus), °C 1450
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 26
50
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.3
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 10
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 11
1.8
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 2.8
1.4
Embodied Energy, MJ/kg 40
19
Embodied Water, L/kg 89
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
200 to 230
Resilience: Unit (Modulus of Resilience), kJ/m3 620
3260 to 4080
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 25
60 to 67
Strength to Weight: Bending, points 22
40 to 43
Thermal Diffusivity, mm2/s 6.9
14
Thermal Shock Resistance, points 19
54 to 60

Alloy Composition

Aluminum (Al), % 0 to 0.020
0
Boron (B), % 0.0010 to 0.0060
0
Carbon (C), % 0.070 to 0.13
0.55 to 0.85
Chromium (Cr), % 8.5 to 9.5
0
Iron (Fe), % 85.8 to 89.1
97.5 to 99
Manganese (Mn), % 0.3 to 0.6
0.3 to 1.2
Molybdenum (Mo), % 0.3 to 0.6
0
Nickel (Ni), % 0 to 0.4
0
Niobium (Nb), % 0.040 to 0.090
0
Nitrogen (N), % 0.030 to 0.070
0
Phosphorus (P), % 0 to 0.020
0 to 0.040
Silicon (Si), % 0 to 0.5
0.15 to 0.35
Sulfur (S), % 0 to 0.010
0 to 0.050
Titanium (Ti), % 0 to 0.010
0
Tungsten (W), % 1.5 to 2.0
0
Vanadium (V), % 0.15 to 0.25
0
Zirconium (Zr), % 0 to 0.010
0