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EN 1.4550 Stainless Steel vs. EN 1.0034 Steel

Both EN 1.4550 stainless steel and EN 1.0034 steel are iron alloys. They have 70% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is EN 1.4550 stainless steel and the bottom bar is EN 1.0034 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
97 to 110
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 42
9.0 to 32
Fatigue Strength, MPa 210
140 to 170
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Shear Strength, MPa 430
220 to 230
Tensile Strength: Ultimate (UTS), MPa 620
340 to 380
Tensile Strength: Yield (Proof), MPa 230
180 to 280

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 940
400
Melting Completion (Liquidus), °C 1430
1460
Melting Onset (Solidus), °C 1390
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
53
Thermal Expansion, µm/m-K 16
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
8.0

Otherwise Unclassified Properties

Base Metal Price, % relative 18
1.8
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 3.6
1.4
Embodied Energy, MJ/kg 51
18
Embodied Water, L/kg 140
45

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 210
31 to 95
Resilience: Unit (Modulus of Resilience), kJ/m3 140
84 to 210
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 22
12 to 13
Strength to Weight: Bending, points 21
14 to 15
Thermal Diffusivity, mm2/s 4.0
14
Thermal Shock Resistance, points 14
11 to 12

Alloy Composition

Carbon (C), % 0 to 0.080
0 to 0.15
Chromium (Cr), % 17 to 19
0
Iron (Fe), % 64.9 to 74
98.7 to 100
Manganese (Mn), % 0 to 2.0
0 to 0.7
Nickel (Ni), % 9.0 to 12
0
Niobium (Nb), % 0 to 1.0
0
Phosphorus (P), % 0 to 0.045
0 to 0.045
Silicon (Si), % 0 to 1.0
0 to 0.35
Sulfur (S), % 0 to 0.015
0 to 0.045