Steels’s catalog

Iron - Carbon bases

Iron Carbon bases include a large quantity of alloys (steel and cast iron) categorized into families and groups according to their chemical, physical and mechanical characteristics.
These alloys are widely used in the industry, including:
• Carbon steels
• Unalloyed steels
• Alloyed steels
• High-speed steels.

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These steels are called martensitic steels because their structure changes after quenching and tempering treatment, giving them mechanical characteristics and high or/nay very high hardness levels.

Depending on the sought grades and criteria, these alloys also support thermochemical treatments for cementation, nitriding or vacuum deposition as well as electrolytic deposition.

Stainless steels are used for their resistance to corrosion and are divided into three main groups:
• Martensitic stainless steels.
• Ferritic stainless steels.
• Austenitic stainless steels.

Each of these families has different behaviours regarding the forms of corrosion encountered in the context of their use.
Martensitic stainless steels are used for their good mechanical properties after quenching and tempering treatment, combined with a good resistance to corrosion which is due to their ability to passivate in ambient air.

However, they are sensitive to pitting corrosion and require careful finishing conditions when they are used.
Ferritic and austenitic stainless steels are highly resistant to pitting corrosion, but their levels of mechanical properties are low because their structure does not change during the quenching process.

Our catalogue provides you with general information on a series of selected grades; each of them is particular and reacts to specific transformation ranges.

The results do not systematically depend on the composition of a selected grade but also on the quality of its imple- mentation and conditions of use.

Please consult with us for any additional information on these topics if needed.

STUB – LA 2067
ETIRE-DOUX-S235JR
ETIRES-1/2-DUR-E335
Fontes coulées en continu
LA 1730
LA 7225
LA 2312
LA 2311
LA HR300
LA 2738
LA 400+
LA 2714
LA 2343 ESR
SMV3 O
LA 2767 Couleur-rayer-bleurouge
LA 2343
LA 2343 ESR violet croix jaune
LA 2344 couleur-rayer-bleujaune
LA 2344 ESR bleu-croix-jaune
819 AW bleu-croix-noires
SMV3 W violet-croix-noires
ADC3 W jaune-croix-noires
ADC88 Couleur-jaune-croixbleu
SMV5 W rose-croix-noires
X13T6 W Couleur-jaune-croixbleu
XDBD W
X15TN
LA 2085 violet croix jaune
LA 2083 couleur-rayer-bleujaune
LA2099
LA 2316
LA 4404 – Inox 316L violet-croix-noires
LA 4307 – Inox 304L jaune-croix-noires
LA 7765 (GKH) violet croix jaune
LA 8509 (LK3)
LA 166
LA 2162

Tiges usinées chromées en C45U

Tiges usinées chromées en 42CrMo4

LA 2842
LA 2363
LA 2379
LA 3343
LA 3247
Powder

Metal powders produced for the various additive manufacturing processes are products derived from powder metallurgy technologies.

These materials are obtained by melting and atomizing metals of very high purity.

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The atomization of liquid metal is carried out with a plasma torch or by spraying neutral gas under pressure through a nozzle; in both cases, the liquid metal at the atomization tower outlet solidifies in the form of spherical particles.

The size of the solid metal particles is generally between 15 and 45 microns.

The use of metal powders in additive manufacturing is done by means of a laser via the melting of successive thin layers, or by pulverized deposit.

The criteria of flowability, density, lack of porosity and homogeneity of the material are essential for the high quality of the products.

Aluminium and aluminium-alloys

Aluminium and its alloys, commonly known as « light alloys », are used in industry for the excellent relationship they

demonstrate between their density and their mechanical properties.

The density of aluminium alloys is three times lower than that of a carbon steel and 3.3 times lower than that of a copper.

Their thermal conductivity is remarkable; it is 13 times higher than that of a steel.

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Their electrical conductivity is very good; of the order of 63% of that of copper, but it is double in weight of an equiv- alent metal.

These alloys also have good resistance to ambient corrosion.
They are obtained by a casting process and can be transformed by rolling or forging.

Like steels, they are classified into families and groups according to the physical and mechanical criteria sought for their use.

The main families are:
• Unalloyed aluminium: 1000 family
• Aluminium-copper alloys: 2000 family
• Aluminium-Manganese alloys: 3000 family
• Aluminium-silicon alloys: 4000 family
• Aluminium-magnesium alloys: 5000 family
• Aluminium-magnesium-silicon alloys: 6000 family • Aluminium-zinc-magnesium alloys: 7000 family

Depending on the grades, their mechanical characteristics can be optimised by heat treatment solution , quenching aging, and by mechanical hardening treatments, but they are less compared than those of steels and they remain limited.

(Refer to the table of metallurgical states at the end of the catalogue)

The mechanical characteristics of these alloys are directly related to their method of production and the dimensions of the products; it is recommended that these parameters be taken into account before the machining of large parts.

LA 2017

LA 5083

LA 5083 CP

LA 7075

LA 7022

LA 7000 C

LA 7000 CP

Cuivre électrolytique

Laiton CuZn40Pb3

Laiton CuZn39Pb2

Bronze UE12P

Bronze NC4

Électrodes rodées CuA1 – 1500C
LAKAL

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