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EN 1.4303 Stainless Steel vs. EN 1.3553 Steel

Both EN 1.4303 stainless steel and EN 1.3553 steel are iron alloys. They have 73% of their average alloy composition in common. There are 26 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 1.4303 stainless steel and the bottom bar is EN 1.3553 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190 to 270
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 590 to 900
720

Thermal Properties

Latent Heat of Fusion, J/g 290
260
Maximum Temperature: Mechanical, °C 940
540
Melting Completion (Liquidus), °C 1420
1620
Melting Onset (Solidus), °C 1380
1570
Specific Heat Capacity, J/kg-K 480
440
Thermal Conductivity, W/m-K 15
24
Thermal Expansion, µm/m-K 16
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
10
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
11

Otherwise Unclassified Properties

Base Metal Price, % relative 17
24
Density, g/cm3 7.8
8.4
Embodied Carbon, kg CO2/kg material 3.2
8.5
Embodied Energy, MJ/kg 46
130
Embodied Water, L/kg 150
96

Common Calculations

PREN (Pitting Resistance) 19
31
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 21 to 32
24
Strength to Weight: Bending, points 20 to 26
21
Thermal Diffusivity, mm2/s 4.0
6.4
Thermal Shock Resistance, points 13 to 20
21

Alloy Composition

Carbon (C), % 0 to 0.060
0.78 to 0.86
Chromium (Cr), % 17 to 19
3.9 to 4.3
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 64.8 to 72
80.7 to 83.7
Manganese (Mn), % 0 to 2.0
0 to 0.4
Molybdenum (Mo), % 0
4.7 to 5.2
Nickel (Ni), % 11 to 13
0
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.045
0 to 0.025
Silicon (Si), % 0 to 1.0
0 to 0.4
Sulfur (S), % 0 to 0.015
0 to 0.015
Tungsten (W), % 0
6.0 to 6.7
Vanadium (V), % 0
1.7 to 2.0