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ASTM A369 Grade FPB vs. AISI 204 Stainless Steel

Both ASTM A369 grade FPB and AISI 204 stainless steel are iron alloys. They have 74% 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 A369 grade FPB and the bottom bar is AISI 204 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
210 to 330
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 19
23 to 39
Fatigue Strength, MPa 180
320 to 720
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
77
Shear Strength, MPa 290
500 to 700
Tensile Strength: Ultimate (UTS), MPa 470
730 to 1100
Tensile Strength: Yield (Proof), MPa 270
380 to 1080

Thermal Properties

Latent Heat of Fusion, J/g 250
280
Maximum Temperature: Mechanical, °C 400
850
Melting Completion (Liquidus), °C 1460
1410
Melting Onset (Solidus), °C 1420
1370
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 52
15
Thermal Expansion, µm/m-K 12
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
2.9

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
10
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 1.4
2.4
Embodied Energy, MJ/kg 18
35
Embodied Water, L/kg 46
130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 78
240 to 250
Resilience: Unit (Modulus of Resilience), kJ/m3 190
360 to 2940
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 17
27 to 40
Strength to Weight: Bending, points 17
24 to 31
Thermal Diffusivity, mm2/s 14
4.1
Thermal Shock Resistance, points 15
16 to 24

Alloy Composition

Carbon (C), % 0 to 0.3
0 to 0.030
Chromium (Cr), % 0
15 to 17
Iron (Fe), % 98.1 to 99.61
69.6 to 76.4
Manganese (Mn), % 0.29 to 1.1
7.0 to 9.0
Nickel (Ni), % 0
1.5 to 3.0
Nitrogen (N), % 0
0.15 to 0.3
Phosphorus (P), % 0 to 0.035
0 to 0.040
Silicon (Si), % 0.1 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.035
0 to 0.030