Ferrous Alloys

22 cases · 134 images

Crevice Corrosion in a Subsea System — Aspect Before Analysis

Condition: Typical manufacturing clear all

Ferrous Alloys — sub-branches

Carbon Steel 5Cast Iron 2High Alloy Steel 5Low Alloy Steel 10

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As received aspect of the sacrificial casting, 2" internal diameter. The casting was solution annealed heat treated.
488
VIEW
ML00164 / Jun.2020
Austenitic SS Casting for Valve Body
M - Austenitic Stainless SteelP - CastingAp - ValveCd - Typical manufacturing
Cm - Aspect Before AnalysisDf - General View
Decorative table service fork, with a non metallic handle that is broken. The metallic part is about 165 mm long and presents two shapes: the scoop and the handle. The scoop is 53mm wide and 73mm long and the handle is about 9 mm wide and 75 mm long.
731
VIEW
ML00151 / Dec.2018
Ferritic Stainless Steel of a Flatware Fork
M - Ferritic Stainless SteelP - Foodstuff ArticleAp - KitchenCd - Typical manufacturing
Cm - Aspect Before AnalysisDf - General View
Wire rope, nominal diamater 2". The wire includes an independent core (IWRC) with 7 wires of 2.0 mm and 6 strands with 26 wires (1+5+[5+5]+10). The external strand layer presents a 3.8mm wire, and there are two internal strand layers with different wire sizes. The wire rope presents plastic reinforcement. It is a right regular lay AACI made by extra improved plow steel (EIPS) wires.
876
VIEW
ML00117 / Jan.2018
High Carbon Steel Wire Rope
M - High Carbon SteelP - Wire RopeAp - Oil and GasCd - Typical manufacturing
Cm - Transverse Section AspectDf - General View
Micrographic detail of the strain hardened austenitic structure in the longitudinal section of the bolt.
441
VIEW
ML00101 / Nov.2017
High Strength 316SS Bolt
M - Austenitic Stainless SteelP - BoltAp - SubseaCd - Typical manufacturing
Cm - Micrography by OM using A262 Method ADf - Austenite
Micrographic detail of the strain hardened austenitic structure in the longitudinal section of the bolt.
412
VIEW
ML00087 / Nov.2017
High Strength Austenitic SS Bolt
M - Austenitic Stainless SteelP - BoltAp - SubseaCd - Typical manufacturing
Cm - Micrography by OM using A262 Method ADf - Austenite
Micrographic detail of a transverse section of the rail, in the head, showing a fully perlitic structure.
520
VIEW
ML00096 / Oct.2017
Carbon Steel Tee Rail
M - High Strength Low AlloyP - RailAp - TransportationCd - Typical manufacturing
Cm - Nital Etched Micrography by OMDf - Pearlite
Micrographic detail of the transverse section of the rail, in the head, showing a fully perlitic structure.
374
VIEW
ML00091 / Sep.2017
Flat Bottom Rail TR57
M - High Strength Low AlloyP - RailAp - TransportationCd - Typical manufacturing
Cm - Nital Etched Micrography by OMDf - Pearlite
Micrographic detail of the slightly banded perlitic structure, in the center of the thickness. ND 3". 7.6 mm thick.
530
VIEW
ML00090 / Sep.2017
Carbon Steel Tubing for Structural Application
M - Low Carbon SteelP - TubeAp - StructureCd - Typical manufacturing
Cm - Nital Etched Micrography by OMDf - Ferrite and Pearlite

More from these cases

ML00164 — Austenitic SS Casting for Valve BodyM - Austenitic Stainless SteelP - CastingAp - ValveCd - Typical manufacturing
Macrography of a longitudinal section of the valve body, presenting the granular structure. The main bore diameter is 2". The casting was tested in two positions. In radial direction in the center of the body (3" solid), and in the longitudinal direction in the wall (1" thick).
78
VIEW
ML00164 / Jun.2020
Austenitic SS Casting for Valve Body
M - Austenitic Stainless SteelP - CastingAp - ValveCd - Typical manufacturing
Cm - Macro Oxalic Acid Electrolytic EtchedDf - Longitudinal Section
Micrography of a longitudinal section, in the center of the valve body, solid 3" thickness. The structure is austenitic with delta ferrite in interdendritic spaces.
67
VIEW
ML00164 / Jun.2020
Austenitic SS Casting for Valve Body
M - Austenitic Stainless SteelP - CastingAp - ValveCd - Typical manufacturing
Cm - Oxalic Acid Electrolytic EtchDf - Austenite
Micrography of a longitudinal section, in the center of the valve body. The structure is austenitic with delta ferrite in interdendritic spaces. The austenite presents a cored matrix in the dendrites, indicating the chemical composition was not homogeneized during the heat treatment.
60
VIEW
ML00164 / Jun.2020
Austenitic SS Casting for Valve Body
M - Austenitic Stainless SteelP - CastingAp - ValveCd - Typical manufacturing
Cm - Oxalic Acid Electrolytic EtchDf - Delta ferrite
Micrographic detail of the cored austenitic structure with delta ferrite in interdendritic spaces. The chemical composition was not homogeneized during the heat treatment.
55
VIEW
ML00164 / Jun.2020
Austenitic SS Casting for Valve Body
M - Austenitic Stainless SteelP - CastingAp - ValveCd - Typical manufacturing
Cm - Oxalic Acid Electrolytic EtchDf - Delta ferrite
Micrography of a longitudinal section, in the 1" thickness valve wall. The structure is austenitic with delta ferrite in interdendritic spaces.
48
VIEW
ML00164 / Jun.2020
Austenitic SS Casting for Valve Body
M - Austenitic Stainless SteelP - CastingAp - ValveCd - Typical manufacturing
Cm - Oxalic Acid Electrolytic EtchDf - Austenite

+2 more from this case →

ML00151 — Ferritic Stainless Steel of a Flatware ForkM - Ferritic Stainless SteelP - Foodstuff ArticleAp - KitchenCd - Typical manufacturing
The metallic part of the fork handle is about 9mm wide. It was cut in a transverse section and the profile is shown in this figure. The thickness is 1mm and the curvature depth is about 3mm.
85
VIEW
ML00151 / Dec.2018
Ferritic Stainless Steel of a Flatware Fork
M - Ferritic Stainless SteelP - Foodstuff ArticleAp - KitchenCd - Typical manufacturing
Cm - Transverse Section AspectDf - Formed Profile
Micrography of the fork handle in the transverse section, curved, presenting differences between grain size and morphology. In the middle section there are elongated grains and close to the surfaces there are smaller and more equiaxed grains.
81
VIEW
ML00151 / Dec.2018
Ferritic Stainless Steel of a Flatware Fork
M - Ferritic Stainless SteelP - Foodstuff ArticleAp - KitchenCd - Typical manufacturing
Cm - Micro by OM, HCl + Ethanol + Picric AcidDf - Transverse Section
Micrography of the fork handle in the center of the transverse section, curved, presenting larger ferritic grains with elongated morphology.
70
VIEW
ML00151 / Dec.2018
Ferritic Stainless Steel of a Flatware Fork
M - Ferritic Stainless SteelP - Foodstuff ArticleAp - KitchenCd - Typical manufacturing
Cm - Micro by OM, HCl + Ethanol + Picric AcidDf - Granular structure
Micrographic detail of the ferritic grains with elongated morphology in the center of the transverse section, curved.
58
VIEW
ML00151 / Dec.2018
Ferritic Stainless Steel of a Flatware Fork
M - Ferritic Stainless SteelP - Foodstuff ArticleAp - KitchenCd - Typical manufacturing
Cm - Micro by OM, HCl + Ethanol + Picric AcidDf - Ferrite
Lateral view of the fork showing the profile. The scoop convex depth is 10 mm and the handle concave depth is 3 mm. The overal thickness of the part is 1 mm.
53
VIEW
ML00151 / Dec.2018
Ferritic Stainless Steel of a Flatware Fork
M - Ferritic Stainless SteelP - Foodstuff ArticleAp - KitchenCd - Typical manufacturing
Cm - Aspect Before AnalysisDf - General View

+13 more from this case →

ML00117 — High Carbon Steel Wire RopeM - High Carbon SteelP - Wire RopeAp - Oil and GasCd - Typical manufacturing
Micrography of a longitudinal section of the core wire, 2.0 mm diameter, in the center of the thickness, showing a strain hardened structure, aligned.
113
VIEW
ML00117 / Jan.2018
High Carbon Steel Wire Rope
M - High Carbon SteelP - Wire RopeAp - Oil and GasCd - Typical manufacturing
Cm - Nital Etched Micrography by OMDf - In the Center of the Thickness
Micrography of a longitudinal section of the core wire, 2.0 mm diameter, in the center of the thickness, showing a strain hardened pearlitic structure.
89
VIEW
ML00117 / Jan.2018
High Carbon Steel Wire Rope
M - High Carbon SteelP - Wire RopeAp - Oil and GasCd - Typical manufacturing
Cm - Nital Etched Micrography by OMDf - Longitudinal Section
Micrographic detail of a longitudinal section of the core wire, 2.0 mm diameter, in the center of the thickness, showing a strain hardened pearlitic structure.
81
VIEW
ML00117 / Jan.2018
High Carbon Steel Wire Rope
M - High Carbon SteelP - Wire RopeAp - Oil and GasCd - Typical manufacturing
Cm - Nital Etched Micrography by OMDf - Strain hardened pearlite
Micrography of a longitudinal section of the core wire, 2.0 mm diameter, at the surface of the wire, showing that the wire presents no protective layer (not galvanized nor plated) and the microstructure is strain hardened, aligned.
71
VIEW
ML00117 / Jan.2018
High Carbon Steel Wire Rope
M - High Carbon SteelP - Wire RopeAp - Oil and GasCd - Typical manufacturing
Cm - Nital Etched Micrography by OMDf - At the Surface
Micrography of a longitudinal section of the core wire, 2.0 mm diameter, at the surface of the wire, showing that the wire presents no protective layer (not galvanized) and the microstructure is strain hardened, aligned.
60
VIEW
ML00117 / Jan.2018
High Carbon Steel Wire Rope
M - High Carbon SteelP - Wire RopeAp - Oil and GasCd - Typical manufacturing
Cm - Nital Etched Micrography by OMDf - Longitudinal Section

+13 more from this case →

ML00101 — High Strength 316SS BoltM - Austenitic Stainless SteelP - BoltAp - SubseaCd - Typical manufacturing
Micrography of the longitudinal section of the bolt, in the center of the body thickness. Strain hardened austenic structure.
52
VIEW
ML00101 / Nov.2017
High Strength 316SS Bolt
M - Austenitic Stainless SteelP - BoltAp - SubseaCd - Typical manufacturing
Cm - Micrography by OM using A262 Method ADf - Strain Hardened
Micrography of the longitudinal section of the bolt, in the center of the body thickness. Strain hardened austenic structure.
46
VIEW
ML00101 / Nov.2017
High Strength 316SS Bolt
M - Austenitic Stainless SteelP - BoltAp - SubseaCd - Typical manufacturing
Cm - Micrography by OM using A262 Method ADf - Strain Hardened
Aspect of the bolts M12 x 25.
41
VIEW
ML00101 / Nov.2017
High Strength 316SS Bolt
M - Austenitic Stainless SteelP - BoltAp - SubseaCd - Typical manufacturing
Cm - Aspect Before AnalysisDf - General View
Micrography of the longitudinal section of the bolt, at the thread. The bolt was cold deformed and the thread was cold rolled.
32
VIEW
ML00101 / Nov.2017
High Strength 316SS Bolt
M - Austenitic Stainless SteelP - BoltAp - SubseaCd - Typical manufacturing
Cm - Micrography by OM using A262 Method ADf - Strain Hardened
Micrography of the longitudinal section of the bolt, at the thread. The bolt was cold deformed and the thread was cold rolled.
31
VIEW
ML00101 / Nov.2017
High Strength 316SS Bolt
M - Austenitic Stainless SteelP - BoltAp - SubseaCd - Typical manufacturing
Cm - Micrography by OM using A262 Method ADf - Strain Hardened

+1 more from this case →

ML00087 — High Strength Austenitic SS BoltM - Austenitic Stainless SteelP - BoltAp - SubseaCd - Typical manufacturing
Micrography of the longitudinal section of the bolt, in the center of the body thickness. Strain hardened austenic structure.
73
VIEW
ML00087 / Nov.2017
High Strength Austenitic SS Bolt
M - Austenitic Stainless SteelP - BoltAp - SubseaCd - Typical manufacturing
Cm - Micrography by OM using A262 Method ADf - Strain Hardened
Micrography of the longitudinal section of the bolt, in the center of the body thickness. Strain hardened austenic structure.
62
VIEW
ML00087 / Nov.2017
High Strength Austenitic SS Bolt
M - Austenitic Stainless SteelP - BoltAp - SubseaCd - Typical manufacturing
Cm - Micrography by OM using A262 Method ADf - Strain Hardened
Socket head capscrew bolt, M10 x 70, 1.5 coarse thread.
63
VIEW
ML00087 / Nov.2017
High Strength Austenitic SS Bolt
M - Austenitic Stainless SteelP - BoltAp - SubseaCd - Typical manufacturing
Cm - Aspect Before AnalysisDf - General View
Micrography of the longitudinal section of the bolt, at the thread. The bolt was cold deformed and the thread was cold rolled.
65
VIEW
ML00087 / Nov.2017
High Strength Austenitic SS Bolt
M - Austenitic Stainless SteelP - BoltAp - SubseaCd - Typical manufacturing
Cm - Micrography by OM using A262 Method ADf - Strain Hardened
Micrography of the longitudinal section of the bolt, at the thread. The bolt was cold deformed and the thread was cold rolled.
65
VIEW
ML00087 / Nov.2017
High Strength Austenitic SS Bolt
M - Austenitic Stainless SteelP - BoltAp - SubseaCd - Typical manufacturing
Cm - Micrography by OM using A262 Method ADf - Strain Hardened

+1 more from this case →

ML00096 — Carbon Steel Tee RailM - High Strength Low AlloyP - RailAp - TransportationCd - Typical manufacturing
Micrographic detail of a transverse section of the rail, in the head, showing a fully perlitic structure.
57
VIEW
ML00096 / Oct.2017
Carbon Steel Tee Rail
M - High Strength Low AlloyP - RailAp - TransportationCd - Typical manufacturing
Cm - Nital Etched Micrography by OMDf - Perlite
Micrography of a transverse section of the rail, in the head, showing equiaxial grains. Perlitic microstructure.
54
VIEW
ML00096 / Oct.2017
Carbon Steel Tee Rail
M - High Strength Low AlloyP - RailAp - TransportationCd - Typical manufacturing
Cm - Nital Etched Micrography by OMDf - Transverse Section
ML00091 — Flat Bottom Rail TR57M - High Strength Low AlloyP - RailAp - TransportationCd - Typical manufacturing
Micrographic detail of the transverse section of the rail, in the head, showing a fully perlitic structure.
42
VIEW
ML00091 / Sep.2017
Flat Bottom Rail TR57
M - High Strength Low AlloyP - RailAp - TransportationCd - Typical manufacturing
Cm - Nital Etched Micrography by OMDf - Perlite
Micrography of a transverse section of the rail, in the head, showing equiaxial grains. Fully perlitic structure.
34
VIEW
ML00091 / Sep.2017
Flat Bottom Rail TR57
M - High Strength Low AlloyP - RailAp - TransportationCd - Typical manufacturing
Cm - Nital Etched Micrography by OMDf - Transverse Section
Schematic drawing from a macrosection of the TR57 rail, showing the dimensions and usual terminology.
42
VIEW
ML00091 / Sep.2017
Flat Bottom Rail TR57
M - High Strength Low AlloyP - RailAp - TransportationCd - Typical manufacturing
Cm - Transverse Section AspectDf - General View
ML00090 — Carbon Steel Tubing for Structural ApplicationM - Low Carbon SteelP - TubeAp - StructureCd - Typical manufacturing
Micrography of a longitudinal section of the tube, in the center of the thickness. ND 3". 7.6 mm thick.
55
VIEW
ML00090 / Sep.2017
Carbon Steel Tubing for Structural Application
M - Low Carbon SteelP - TubeAp - StructureCd - Typical manufacturing
Cm - Nital Etched Micrography by OMDf - Ferrite and Pearlite
Micrography of a longitudinal section of the tube, in the center of the thickness. ND 3". 7.6 mm thick.
43
VIEW
ML00090 / Sep.2017
Carbon Steel Tubing for Structural Application
M - Low Carbon SteelP - TubeAp - StructureCd - Typical manufacturing
Cm - Nital Etched Micrography by OMDf - Longitudinal Section