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ASTM A369 Grade FP91 vs. S28200 Stainless Steel

Both ASTM A369 grade FP91 and S28200 stainless steel are iron alloys. They have 72% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is ASTM A369 grade FP91 and the bottom bar is S28200 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
260
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 19
45
Fatigue Strength, MPa 320
430
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 75
77
Shear Strength, MPa 410
610
Tensile Strength: Ultimate (UTS), MPa 670
870
Tensile Strength: Yield (Proof), MPa 460
460

Thermal Properties

Latent Heat of Fusion, J/g 270
290
Maximum Temperature: Mechanical, °C 600
900
Melting Completion (Liquidus), °C 1460
1380
Melting Onset (Solidus), °C 1420
1330
Specific Heat Capacity, J/kg-K 470
480
Thermal Expansion, µm/m-K 13
18

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
12
Density, g/cm3 7.8
7.6
Embodied Carbon, kg CO2/kg material 2.6
2.8
Embodied Energy, MJ/kg 37
41
Embodied Water, L/kg 88
160

Common Calculations

PREN (Pitting Resistance) 13
29
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
330
Resilience: Unit (Modulus of Resilience), kJ/m3 560
540
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
26
Strength to Weight: Axial, points 24
32
Strength to Weight: Bending, points 22
27
Thermal Shock Resistance, points 18
17

Alloy Composition

Aluminum (Al), % 0 to 0.020
0
Carbon (C), % 0.080 to 0.12
0 to 0.15
Chromium (Cr), % 8.0 to 9.5
17 to 19
Copper (Cu), % 0
0.75 to 1.3
Iron (Fe), % 87.3 to 90.3
57.7 to 64.1
Manganese (Mn), % 0.3 to 0.6
17 to 19
Molybdenum (Mo), % 0.85 to 1.1
0.75 to 1.3
Nickel (Ni), % 0 to 0.4
0
Niobium (Nb), % 0.060 to 0.1
0
Nitrogen (N), % 0.030 to 0.070
0.4 to 0.6
Phosphorus (P), % 0 to 0.025
0 to 0.045
Silicon (Si), % 0.2 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.025
0 to 0.030
Titanium (Ti), % 0 to 0.010
0
Vanadium (V), % 0.18 to 0.25
0
Zirconium (Zr), % 0 to 0.010
0