{"id":123,"count":1,"description":"Cette cat\u00e9gorie constitue l'itin\u00e9raire industriel barre et tige en tungst\u00e8ne<\/a> : fili\u00e8re de demande de prix pour le tungst\u00e8ne pur, l'alliage \u00e0 haute densit\u00e9 \u00e0 base de tungst\u00e8ne ou les flans d\u00e9finis par plan. Pr\u00e9cisez quelle famille de mat\u00e9riaux est requise : le tungst\u00e8ne pur et l'alliage lourd ne sont pas des sp\u00e9cifications d'achat interchangeables.\nPour la barre ou la tige en tungst\u00e8ne pur, fournissez la sp\u00e9cification mat\u00e9riau de l'acheteur ; l'ASTM B760 couvre la plaque, la t\u00f4le et la feuille de tungst\u00e8ne et ne doit pas \u00eatre utilis\u00e9e ici comme norme directrice de la barre ou de la tige. L'ASTM B777 ne s'applique que lorsqu'une sp\u00e9cification et une classe d'alliage \u00e0 haute densit\u00e9 \u00e0 base de tungst\u00e8ne sont command\u00e9es. Indiquez la composition ou la densit\u00e9, les dimensions, l'\u00e9tat, la tol\u00e9rance, la surface, la quantit\u00e9, le plan et l'\u00e9tendue du contr\u00f4le pour l'offre.\n\n

D\u00e9tails des sp\u00e9cifications avec sources<\/h2>\n

La distinction faite par ASTM entre le tungst\u00e8ne plat dans B760 et l'alliage lourd dans B777 refl\u00e8te deux sp\u00e9cifications d'achat diff\u00e9rentes derri\u00e8re un m\u00eame nom de m\u00e9tal, et c'est la densit\u00e9 qui permet de v\u00e9rifier la diff\u00e9rence. Le tungst\u00e8ne non alli\u00e9 atteint 19.3 grammes par centim\u00e8tre cube, soit pr\u00e8s de trois fois les 6.5 du zirconium et presque deux fois les 10.2 du molybd\u00e8ne, de sorte qu'une pi\u00e8ce pes\u00e9e r\u00e9v\u00e8le une substitution plus rapidement que toute \u00e9tiquette, ce qui explique notamment pourquoi cette page demande la densit\u00e9 en plus de la composition chimique.<\/p>\n

Beiyu Titanium supplies tungsten bar and rod to the envelope published further down this page, and quotes each item against the buyer's material specification, drawing and stated class. Every order runs the same process as Beiyu's other lines: review of grade or composition, standard, dimensions, tolerance, surface condition and inspection scope before quotation, chemical analysis through one of two laboratory routes, third party inspection by agreement, and marking, weighing and packing recorded before dispatch with MTC and EN 10204 3.1 by order scope.<\/p>\n

P\u00e9rim\u00e8tre d'approvisionnement pour le tungst\u00e8ne<\/h2>\n

Le tungst\u00e8ne est achet\u00e9 en petites quantit\u00e9s selon des plans exigeants, et la forme d\u00e9termine presque tout le reste. Le tableau indique les plages selon lesquelles chaque forme est produite.<\/p>\n\n\n
Forme<\/th>Plage<\/th><\/tr><\/thead>\n
T\u00f4le et plaque<\/td>1,0 mm \u00e0 25 mm d'\u00e9paisseur, largeur adapt\u00e9e \u00e0 la demande<\/td><\/tr>\n
Barre ronde et tige<\/td>Ø1,6 mm \u00e0 70 mm<\/td><\/tr>\n
Fil<\/td>Ø0,1 mm \u00e0 1,6 mm<\/td><\/tr>\n
Tube<\/td>Ø80 mm, \u00e9paisseur de paroi 3 mm \u00e0 5 mm, longueur jusqu'\u00e0 3000 mm<\/td><\/tr>\n<\/tbody>\n<\/table>\n

The table spans more than one purchase specification: ASTM B760 governs the sheet and plate line, ASTM B777 applies only where tungsten-base high-density alloy is ordered, and pure tungsten bar and rod go to the buyer's material specification or drawing; the governing document for each item is written into the order rather than assumed from the metal name.<\/p>\n

Les nuances fournies sont W1 et W2 ainsi que les compositions W-Ni-Fe, W-Mo, W-Cu et W-La, et celle souhait\u00e9e doit figurer dans la demande \u00e0 c\u00f4t\u00e9 de la dimension. Les produits press\u00e9s et fritt\u00e9s et les produits mis en forme apr\u00e8s frittage diff\u00e8rent par leur densit\u00e9, leur usinabilit\u00e9 et l'\u00e9tat de surface qu'ils conservent ; le proc\u00e9d\u00e9 et l'\u00e9tat de surface constituent donc des lignes distinctes de la dimension. La plage de diam\u00e8tres du tableau correspond \u00e0 ce que Beiyu Titanium fournit en standard, et les sections plus grandes ou plus petites font l'objet d'une offre sur mesure.<\/p>","link":"https:\/\/beiyutitanium.com\/fr\/product-category\/woo-products\/refractory-metals\/tungsten\/","name":"Tungst\u00e8ne","slug":"tungsten","taxonomy":"product_cat","parent":113,"meta":{"_templately_pack_id":"","_templately_imported_at":"","_templately_source":"","_templately_import_session_id":""},"menu_order":0,"yoast_head":"\nTungsten Supplier | Tungsten Bar, Rod & Heavy Alloy | Beiyu<\/title>\n<meta name=\"description\" content=\"Beiyu supplies tungsten bar, rod, plate and heavy alloy: bar and rod to drawing, plate to ASTM B760, heavy alloy to ASTM B777 when ordered.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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