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EN 1.3551 Steel vs. S44700 Stainless Steel

Both EN 1.3551 steel and S44700 stainless steel are iron alloys. They have 75% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.

For each property being compared, the top bar is EN 1.3551 steel and the bottom bar is S44700 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220
200
Elastic (Young's, Tensile) Modulus, GPa 190
210
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 75
82
Tensile Strength: Ultimate (UTS), MPa 720
600

Thermal Properties

Latent Heat of Fusion, J/g 260
300
Maximum Temperature: Mechanical, °C 530
1100
Melting Completion (Liquidus), °C 1490
1460
Melting Onset (Solidus), °C 1450
1410
Specific Heat Capacity, J/kg-K 460
480
Thermal Expansion, µm/m-K 13
11

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
18
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 4.9
3.6
Embodied Energy, MJ/kg 71
49
Embodied Water, L/kg 82
180

Common Calculations

PREN (Pitting Resistance) 18
42
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 26
21
Strength to Weight: Bending, points 23
20
Thermal Shock Resistance, points 21
19

Alloy Composition

Carbon (C), % 0.77 to 0.85
0 to 0.010
Chromium (Cr), % 3.9 to 4.3
28 to 30
Copper (Cu), % 0 to 0.3
0 to 0.15
Iron (Fe), % 88.8 to 91.1
64.9 to 68.5
Manganese (Mn), % 0.15 to 0.35
0 to 0.3
Molybdenum (Mo), % 4.0 to 4.5
3.5 to 4.2
Nickel (Ni), % 0
0 to 0.15
Nitrogen (N), % 0
0 to 0.020
Phosphorus (P), % 0 to 0.025
0 to 0.025
Silicon (Si), % 0 to 0.4
0 to 0.2
Sulfur (S), % 0 to 0.015
0 to 0.020
Tungsten (W), % 0 to 0.25
0
Vanadium (V), % 0.9 to 1.1
0