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EN 1.3549 Stainless Steel vs. EN 1.3553 Steel

Both EN 1.3549 stainless steel and EN 1.3553 steel are iron alloys. Both are furnished in the spheroidized condition. They have 86% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is EN 1.3549 stainless steel and the bottom bar is EN 1.3553 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220
220
Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
77
Tensile Strength: Ultimate (UTS), MPa 730
720

Thermal Properties

Latent Heat of Fusion, J/g 280
260
Maximum Temperature: Mechanical, °C 910
540
Melting Completion (Liquidus), °C 1430
1620
Melting Onset (Solidus), °C 1390
1570
Specific Heat Capacity, J/kg-K 480
440
Thermal Conductivity, W/m-K 21
24
Thermal Expansion, µm/m-K 10
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
10
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
11

Otherwise Unclassified Properties

Base Metal Price, % relative 10
24
Density, g/cm3 7.7
8.4
Embodied Carbon, kg CO2/kg material 2.6
8.5
Embodied Energy, MJ/kg 37
130
Embodied Water, L/kg 130
96

Common Calculations

PREN (Pitting Resistance) 22
31
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 27
24
Strength to Weight: Bending, points 24
21
Thermal Diffusivity, mm2/s 5.6
6.4
Thermal Shock Resistance, points 26
21

Alloy Composition

Carbon (C), % 0.85 to 1.0
0.78 to 0.86
Chromium (Cr), % 17 to 19
3.9 to 4.3
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 77.5 to 82
80.7 to 83.7
Manganese (Mn), % 0 to 1.0
0 to 0.4
Molybdenum (Mo), % 0.9 to 1.3
4.7 to 5.2
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 1.0
0 to 0.4
Sulfur (S), % 0 to 0.030
0 to 0.015
Tungsten (W), % 0
6.0 to 6.7
Vanadium (V), % 0.070 to 0.12
1.7 to 2.0