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EN 1.4318 Stainless Steel vs. S45503 Stainless Steel

Both EN 1.4318 stainless steel and S45503 stainless steel are iron alloys. They have a moderately high 93% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is EN 1.4318 stainless steel and the bottom bar is S45503 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 230
410 to 500
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 44
4.6 to 6.8
Fatigue Strength, MPa 340
710 to 800
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
75
Shear Strength, MPa 520
940 to 1070
Tensile Strength: Ultimate (UTS), MPa 740
1610 to 1850
Tensile Strength: Yield (Proof), MPa 380
1430 to 1700

Thermal Properties

Latent Heat of Fusion, J/g 290
270
Maximum Temperature: Corrosion, °C 410
640
Maximum Temperature: Mechanical, °C 910
760
Melting Completion (Liquidus), °C 1430
1440
Melting Onset (Solidus), °C 1380
1400
Specific Heat Capacity, J/kg-K 480
470
Thermal Expansion, µm/m-K 16
11

Otherwise Unclassified Properties

Base Metal Price, % relative 13
15
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 2.8
3.4
Embodied Energy, MJ/kg 39
48
Embodied Water, L/kg 130
120

Common Calculations

PREN (Pitting Resistance) 20
13
Resilience: Ultimate (Unit Rupture Work), MJ/m3 280
82 to 110
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 27
57 to 65
Strength to Weight: Bending, points 23
39 to 43
Thermal Shock Resistance, points 17
56 to 64

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.010
Chromium (Cr), % 16.5 to 18.5
11 to 12.5
Copper (Cu), % 0
1.5 to 2.5
Iron (Fe), % 70.2 to 77.4
72.4 to 78.9
Manganese (Mn), % 0 to 2.0
0 to 0.5
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 6.0 to 8.0
7.5 to 9.5
Niobium (Nb), % 0
0.1 to 0.5
Nitrogen (N), % 0.1 to 0.2
0
Phosphorus (P), % 0 to 0.045
0 to 0.010
Silicon (Si), % 0 to 1.0
0 to 0.2
Sulfur (S), % 0 to 0.015
0 to 0.010
Titanium (Ti), % 0
1.0 to 1.4