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EN 1.4903 Stainless Steel vs. ASTM A182 Grade F911

Both EN 1.4903 stainless steel and ASTM A182 grade F911 are iron alloys. They have a very high 99% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is EN 1.4903 stainless steel and the bottom bar is ASTM A182 grade F911.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 20 to 21
20
Fatigue Strength, MPa 320 to 330
350
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 75
76
Shear Strength, MPa 420
430
Tensile Strength: Ultimate (UTS), MPa 670 to 680
690
Tensile Strength: Yield (Proof), MPa 500
500

Thermal Properties

Latent Heat of Fusion, J/g 270
270
Maximum Temperature: Mechanical, °C 650
600
Melting Completion (Liquidus), °C 1460
1480
Melting Onset (Solidus), °C 1420
1440
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 26
26
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.4
9.2
Electrical Conductivity: Equal Weight (Specific), % IACS 4.0
10

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
9.5
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 2.6
2.8
Embodied Energy, MJ/kg 36
40
Embodied Water, L/kg 88
90

Common Calculations

PREN (Pitting Resistance) 13
15
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120 to 130
130
Resilience: Unit (Modulus of Resilience), kJ/m3 650
650
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 24
24
Strength to Weight: Bending, points 22
22
Thermal Diffusivity, mm2/s 7.0
6.9
Thermal Shock Resistance, points 23
19

Alloy Composition

Aluminum (Al), % 0 to 0.040
0 to 0.020
Boron (B), % 0
0.00030 to 0.0060
Carbon (C), % 0.080 to 0.12
0.090 to 0.13
Chromium (Cr), % 8.0 to 9.5
8.5 to 9.5
Copper (Cu), % 0 to 0.3
0
Iron (Fe), % 87.1 to 90.5
86.2 to 88.9
Manganese (Mn), % 0.3 to 0.6
0.3 to 0.6
Molybdenum (Mo), % 0.85 to 1.1
0.9 to 1.1
Nickel (Ni), % 0 to 0.4
0 to 0.4
Niobium (Nb), % 0.060 to 0.1
0.060 to 0.1
Nitrogen (N), % 0.030 to 0.070
0.040 to 0.090
Phosphorus (P), % 0 to 0.025
0 to 0.020
Silicon (Si), % 0 to 0.5
0.1 to 0.5
Sulfur (S), % 0 to 0.015
0 to 0.010
Titanium (Ti), % 0
0 to 0.010
Tungsten (W), % 0
0.9 to 1.1
Vanadium (V), % 0.18 to 0.25
0.18 to 0.25
Zirconium (Zr), % 0
0 to 0.010