Medium Carbon Steel

3 cases · 24 images

Crevice Corrosion in a Subsea System — Aspect Before Analysis

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Micrographic detail of a longitudinal section of a 4 mm diameter wire, presenting an aligned and highly strained pearlitic structure. Base metal.
386
VIEW
ML00113 / Jan.2018
Autogenous Weld of a Carbon Steel Wire
M - Medium Carbon SteelP - WireAp - OffshoreCd - Welding
Cm - Nital Etched Micrography by OMDf - Strain hardened pearlite
The shaft presented a light wear at the end of the life. See the schematic drawing in the next figure
598
VIEW
ML00064 / Apr.2017
SAE 1045 Steel Shaft
M - Medium Carbon SteelP - ShaftAp - Mechanical IndustryCd - Removed From Service
Cm - Aspect Before AnalysisDf - At the Surface
Longitudinal section of the wire, close to the surface. Galvanized layer (zinc), 50 microns thickness.
368
VIEW
ML00036 / Jan.2018
High Strength Medium Carbon Steel Wire
M - Medium Carbon SteelP - WireAp - OffshoreCd - Typical manufacturing
Cm - Nital Etched Micrography by OMDf - Surface Layer

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ML00113 — Autogenous Weld of a Carbon Steel WireM - Medium Carbon SteelP - WireAp - OffshoreCd - Welding
Micrography of a longitudinal section of a 4 mm diameter wire base metal, presenting a strain hardened and aligned pearlitic structure.
42
VIEW
ML00113 / Jan.2018
Autogenous Weld of a Carbon Steel Wire
M - Medium Carbon SteelP - WireAp - OffshoreCd - Welding
Cm - Nital Etched Micrography by OMDf - Base Metal
Low magnification micrography of a longitudinal section of a 4 mm diameter base metal wire, presenting a strain hardened and aligned pearlitic structure.
32
VIEW
ML00113 / Jan.2018
Autogenous Weld of a Carbon Steel Wire
M - Medium Carbon SteelP - WireAp - OffshoreCd - Welding
Cm - Nital Etched Micrography by OMDf - Base Metal
Macrography of a longitudinal section of a 4 mm diameter wire, presenting part of an austogenously welded joint, with the transformation of the strain hardened pearlitic. The base metal is to the left side of the figure, and the heat affected zone is in the center of the figure. There is a (previous austenite) grain growth to the right side of the figure, where it is the center of the weld.
33
VIEW
ML00113 / Jan.2018
Autogenous Weld of a Carbon Steel Wire
M - Medium Carbon SteelP - WireAp - OffshoreCd - Welding
Cm - NItal Etched MacroDf - Welded Joint
Low magnification micrography of a longitudinal section of a 4 mm diameter wire, at the region where the pearlitic strain hardened wire is affected by the welding. The base metal is to the left side and the region of the HAZ that starts with a grain growth is to the right side.
24
VIEW
ML00113 / Jan.2018
Autogenous Weld of a Carbon Steel Wire
M - Medium Carbon SteelP - WireAp - OffshoreCd - Welding
Cm - Nital Etched Micrography by OMDf - Heat Affected Zone
Micrography of a longitudinal section of a 4 mm diameter wire, at the heat affected zone created by the autogenous welding, presenting a tempered martensitic structure.
19
VIEW
ML00113 / Jan.2018
Autogenous Weld of a Carbon Steel Wire
M - Medium Carbon SteelP - WireAp - OffshoreCd - Welding
Cm - Nital Etched Micrography by OMDf - Heat Affected Zone

+4 more from this case →

ML00064 — SAE 1045 Steel ShaftM - Medium Carbon SteelP - ShaftAp - Mechanical IndustryCd - Removed From Service
Schematic drawing presenting the Shaft
169
VIEW
ML00064 / Apr.2017
SAE 1045 Steel Shaft
M - Medium Carbon SteelP - ShaftAp - Mechanical IndustryCd - Removed From Service
Cm - Identification drawingDf - At the Surface
Micrography of the longitudinal section of the shaft, in the center of the thickness, presenting a ferritic-perlitic structure typical of a hot forming process.
149
VIEW
ML00064 / Apr.2017
SAE 1045 Steel Shaft
M - Medium Carbon SteelP - ShaftAp - Mechanical IndustryCd - Removed From Service
Cm - Nital Etched Micrography by OMDf - In the Center of the Thickness
Micrographic detail of the ferritic-perlitic structure, typical of a hot forming process, in the center of the thickness.
139
VIEW
ML00064 / Apr.2017
SAE 1045 Steel Shaft
M - Medium Carbon SteelP - ShaftAp - Mechanical IndustryCd - Removed From Service
Cm - Nital Etched Micrography by OMDf - In the Center of the Thickness
Micrographic detail of the ferritic-perlitic structure, typical of a hot forming process, in the center of the thickness.
116
VIEW
ML00064 / Apr.2017
SAE 1045 Steel Shaft
M - Medium Carbon SteelP - ShaftAp - Mechanical IndustryCd - Removed From Service
Cm - Nital Etched Micrography by OMDf - In the Center of the Thickness
Micrography of the longitudinal section of the shaft, at the damaged surface (with a light wear). In low magnification the ferritic perlitic texture reveals the forging lines.
102
VIEW
ML00064 / Apr.2017
SAE 1045 Steel Shaft
M - Medium Carbon SteelP - ShaftAp - Mechanical IndustryCd - Removed From Service
Cm - Nital Etched Micrography by OMDf - At the Surface

+1 more from this case →

ML00036 — High Strength Medium Carbon Steel WireM - Medium Carbon SteelP - WireAp - OffshoreCd - Typical manufacturing
Longitudinal section of the 3.6 mm wire, presenting a refined structure.
46
VIEW
ML00036 / Jan.2018
High Strength Medium Carbon Steel Wire
M - Medium Carbon SteelP - WireAp - OffshoreCd - Typical manufacturing
Cm - Nital Etched Micrography by OMDf - Longitudinal Section
Longitudinal section of the 3.6 mm wire, presenting a strain hardened structure, predominantly perlitic.
41
VIEW
ML00036 / Jan.2018
High Strength Medium Carbon Steel Wire
M - Medium Carbon SteelP - WireAp - OffshoreCd - Typical manufacturing
Cm - Nital Etched Micrography by OMDf - Longitudinal Section
Longitudinal section of the 3.6 mm wire, presenting a strain hardened structure, predominantly perlitic.
38
VIEW
ML00036 / Jan.2018
High Strength Medium Carbon Steel Wire
M - Medium Carbon SteelP - WireAp - OffshoreCd - Typical manufacturing
Cm - Nital Etched Micrography by OMDf - Predominantly Pearlitic
Transverse section of the 3.6 mm wire, presenting a refined structure.
32
VIEW
ML00036 / Jan.2018
High Strength Medium Carbon Steel Wire
M - Medium Carbon SteelP - WireAp - OffshoreCd - Typical manufacturing
Cm - Nital Etched Micrography by OMDf - Transverse Section
Transverse section of the 3.6 mm wire, presenting a refined structure predominatly perlitic.
19
VIEW
ML00036 / Jan.2018
High Strength Medium Carbon Steel Wire
M - Medium Carbon SteelP - WireAp - OffshoreCd - Typical manufacturing
Cm - Nital Etched Micrography by OMDf - Transverse Section

+1 more from this case →