{"id":121,"count":2,"description":"Cette cat\u00e9gorie oriente les demandes de prix vers barre, tige, t\u00f4le et plaque en niobium<\/a> et tube en niobium sans soudure ou soud\u00e9<\/a>. Utilisez ASTM B392 pour les barres et les tiges, ASTM B393 pour les t\u00f4les et les plaques, ou ASTM B394 pour les tubes lorsque la norme produit applicable est command\u00e9e. Indiquez le code UNS exact ind\u00e9pendamment de la forme du produit. R04200 et R04210 sont des nuances de niobium non alli\u00e9 selon ces normes ASTM ; le niobium-1% zirconium utilise des d\u00e9signations UNS distinctes. Envoyez le code UNS exact, la norme, les dimensions, l'\u00e9tat, la tol\u00e9rance, la quantit\u00e9, l'application et l'\u00e9tendue des documents de contr\u00f4le avec la demande de prix.\n\n

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

Les deux d\u00e9signations indiqu\u00e9es sur cette page correspondent toutes deux \u00e0 du niobium non alli\u00e9, et la commande \u00e9tablit la distinction entre elles par le num\u00e9ro UNS plut\u00f4t que par le nom de l'\u00e9l\u00e9ment. La densit\u00e9 est l'autre chiffre utile : le niobium est \u00e0 8.6 grammes par centim\u00e8tre cube contre 16.7 pour le tantale, le m\u00e9tal auquel il ressemble le plus chimiquement ; une barre pes\u00e9e permet donc d'\u00e9tablir lequel des deux est effectivement arriv\u00e9 lorsque les marquages sont incertains.<\/p>\n

Beiyu Titanium supplies this category to the envelope published further down this page, and quotes each item against the buyer's drawing and the standard the order names. Every order runs the same release discipline as Beiyu's other lines: six fields reviewed before any quotation, grade, standard, dimensions, tolerance, surface condition and inspection scope, chemical composition checked through one of two laboratory routes, dimensional inspection recorded against the ordered tolerance, third party inspection when the contract agrees it, and MTC with EN 10204 3.1 under heat number traceability by order scope.<\/p>\n

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

Le niobium est achet\u00e9 en petites quantit\u00e9s selon des plans exigeants, de sorte que la plage de dimensions et la nuance doivent toutes deux figurer sur la demande plut\u00f4t que le seul nom de l'\u00e9l\u00e9ment.<\/p>\n\n\n
Forme<\/th>Plage<\/th><\/tr><\/thead>\n
T\u00f4le et plaque<\/td>0,03 mm \u00e0 10 mm d'\u00e9paisseur, largeur 30 mm \u00e0 1000 mm, longueur 50 mm \u00e0 2000 mm<\/td><\/tr>\n
Barre ronde et tige<\/td>Ø3 mm \u00e0 100 mm, longueur jusqu'\u00e0 6000 mm<\/td><\/tr>\n
Fil<\/td>Ø0,3 mm \u00e0 3,0 mm<\/td><\/tr>\n
Tube<\/td>Ø2,0 mm \u00e0 100 mm, longueur jusqu'\u00e0 8000 mm<\/td><\/tr>\n<\/tbody>\n<\/table>\n

Le tableau est \u00e9tabli selon ASTM B392, ASTM B393 et ASTM B394 comme sp\u00e9cifications applicables \u00e0 la famille; celle qui s'applique \u00e0 un article donn\u00e9 est confirm\u00e9e avec la commande plut\u00f4t que suppos\u00e9e \u00e0 partir de la forme.<\/p>\n

Deux nuances sont fournies, R04200 et R04210, et la nuance avec son num\u00e9ro est ce qui d\u00e9termine le tableau de composition chimique sur le certificat plut\u00f4t que le seul nom de l'\u00e9l\u00e9ment. Ce sont les plages que Beiyu Titanium fournit en standard. Toute demande en dehors de celles-ci est une demande sur mesure plut\u00f4t qu'une hypoth\u00e8se que l'acheteur peut faire.<\/p>\n

Le fil d'alliage Nb-Ti est command\u00e9 s\u00e9par\u00e9ment du niobium<\/h2>\n

Le tableau ci-dessus couvre les deux nuances de niobium propos\u00e9es sur cette page. Nb-47Ti, \u00e9galement d\u00e9sign\u00e9 53Nb-47Ti, est un alliage diff\u00e9rent et se commande selon ses propres conditions : il ne fait pas partie de ces nuances, et Beiyu Titanium ne l'accepte pas au titre des sp\u00e9cifications selon lesquelles elles sont propos\u00e9es.<\/p>\n\n\n
Champ<\/th>Ce que fournit Beiyu Titanium<\/th><\/tr><\/thead>\n
Alliage<\/td>Nb-47Ti, \u00e9galement d\u00e9sign\u00e9 53Nb-47Ti<\/td><\/tr>\n
\u00c9tat<\/td>Recuit<\/td><\/tr>\n
Tol\u00e9rance de diam\u00e8tre \u00e0 Ø0,20 mm<\/td>±0,01 mm<\/td><\/tr>\n
Certificat<\/td>EN 10204 3.1 avec tra\u00e7abilit\u00e9 par num\u00e9ro de coul\u00e9e, p\u00e9rim\u00e8tre de rapport d\u00e9fini par la commande<\/td><\/tr>\n
Analyse rapport\u00e9e<\/td>Analyse chimique avec analyse des gaz pour le carbone, l'hydrog\u00e8ne, l'azote et l'oxyg\u00e8ne<\/td><\/tr>\n<\/tbody>\n<\/table>\n

Le fil fin est le domaine o\u00f9 une valeur de tol\u00e9rance cesse d'\u00eatre explicite. \u00c0 Ø0,20 mm, une tol\u00e9rance de diam\u00e8tre de ±0,01 mm repr\u00e9sente cinq pour cent du diam\u00e8tre ; la demande doit donc indiquer \u00e0 quoi s'applique cette valeur : \u00e0 la longueur totale livr\u00e9e, ou \u00e0 un plan d'\u00e9chantillonnage que l'acheteur utilise d\u00e9j\u00e0. Indiquez \u00e9galement si l'ovalit\u00e9 est contr\u00f4l\u00e9e s\u00e9par\u00e9ment, car une tol\u00e9rance de rondeur et une limite d'ovalit\u00e9 sont deux crit\u00e8res d'acceptation diff\u00e9rents.<\/p>\n

Cette tol\u00e9rance correspond \u00e0 la plage d'approvisionnement de Beiyu Titanium pour ce diam\u00e8tre dans cet alliage. Elle est confirm\u00e9e selon la forme et la quantit\u00e9 command\u00e9es dans l'offre, et n'est pas maintenue comme valeur de catalogue.<\/p>\n

Trois lignes suppl\u00e9mentaires compl\u00e8tent la sp\u00e9cification. La forme de livraison doit \u00eatre indiqu\u00e9e comme suit : bobine, couronne ou longueurs de coupe droites. L'\u00e9tat de surface est indiqu\u00e9 s\u00e9par\u00e9ment de l'\u00e9tat m\u00e9tallurgique. Et la base d'acceptation doit \u00eatre nomm\u00e9e, soit la norme produit par rapport \u00e0 laquelle le certificat \u00e9tablit son rapport, soit le plan, puisque c'est \u00e0 cela que la composition chimique et les dimensions indiqu\u00e9es sont compar\u00e9es.<\/p>","link":"https:\/\/beiyutitanium.com\/fr\/product-category\/woo-products\/refractory-metals\/niobium\/","name":"Niobium","slug":"niobium","taxonomy":"product_cat","parent":113,"meta":{"_templately_pack_id":"","_templately_imported_at":"","_templately_source":"","_templately_import_session_id":""},"menu_order":0,"yoast_head":"\nNiobium Supplier | Niobium Pipe, Tube & Bar (Nb1\/Nb1Zr) | Beiyu<\/title>\n<meta name=\"description\" content=\"Beiyu supplies niobium (columbium) pipe, tube and bar in Nb1 (UNS R04200) and Nb1Zr to ASTM B394 for chemical, superconductor and high-temperature applications.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link 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