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EN 1.4542 Stainless Steel vs. ASTM A369 Grade FP91

Both EN 1.4542 stainless steel and ASTM A369 grade FP91 are iron alloys. They have 84% 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 EN 1.4542 stainless steel and the bottom bar is ASTM A369 grade FP91.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 5.7 to 20
19
Fatigue Strength, MPa 370 to 640
320
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
75
Shear Strength, MPa 550 to 860
410
Tensile Strength: Ultimate (UTS), MPa 880 to 1470
670
Tensile Strength: Yield (Proof), MPa 580 to 1300
460

Thermal Properties

Latent Heat of Fusion, J/g 280
270
Maximum Temperature: Mechanical, °C 860
600
Melting Completion (Liquidus), °C 1430
1460
Melting Onset (Solidus), °C 1380
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 16
26
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
8.9
Electrical Conductivity: Equal Weight (Specific), % IACS 2.8
10

Otherwise Unclassified Properties

Base Metal Price, % relative 13
7.0
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.7
2.6
Embodied Energy, MJ/kg 39
37
Embodied Water, L/kg 130
88

Common Calculations

PREN (Pitting Resistance) 17
13
Resilience: Ultimate (Unit Rupture Work), MJ/m3 62 to 160
110
Resilience: Unit (Modulus of Resilience), kJ/m3 880 to 4360
560
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 31 to 52
24
Strength to Weight: Bending, points 26 to 37
22
Thermal Diffusivity, mm2/s 4.3
6.9
Thermal Shock Resistance, points 29 to 49
18

Alloy Composition

Aluminum (Al), % 0
0 to 0.020
Carbon (C), % 0 to 0.070
0.080 to 0.12
Chromium (Cr), % 15 to 17
8.0 to 9.5
Copper (Cu), % 3.0 to 5.0
0
Iron (Fe), % 69.6 to 79
87.3 to 90.3
Manganese (Mn), % 0 to 1.5
0.3 to 0.6
Molybdenum (Mo), % 0 to 0.6
0.85 to 1.1
Nickel (Ni), % 3.0 to 5.0
0 to 0.4
Niobium (Nb), % 0 to 0.45
0.060 to 0.1
Nitrogen (N), % 0
0.030 to 0.070
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 0.7
0.2 to 0.5
Sulfur (S), % 0 to 0.015
0 to 0.025
Titanium (Ti), % 0
0 to 0.010
Vanadium (V), % 0
0.18 to 0.25
Zirconium (Zr), % 0
0 to 0.010