{"id":9720,"date":"2026-01-06T12:01:56","date_gmt":"2026-01-06T12:01:56","guid":{"rendered":"https:\/\/premiumalu.com\/?post_type=product&p=9720"},"modified":"2026-07-08T15:01:12","modified_gmt":"2026-07-08T15:01:12","slug":"6951-lega-di-alluminio","status":"publish","type":"product","link":"https:\/\/premiumalu.com\/it\/prodotto\/6951-lega-di-alluminio\/","title":{"rendered":"6951 Lega di alluminio"},"content":{"rendered":"

What Is 6951 Aluminum?<\/h2>\n

6951 is commonly used as the core layer of clad brazing sheet, paired with a cladding alloy such as 4343 or 4045 on one or both faces. During the brazing cycle the cladding melts and flows to seal joints, while the 6951 core keeps the assembly strong and formable. It is widely specified in automotive and HVAC heat exchangers.<\/p>\n

Available 6951 Aluminum Products<\/h2>\n

Sheet \/ Coil<\/h3>\n\n\n\n\n\n\n\n\n
Parametro<\/th>\nSpessore<\/th>\n<\/tr>\n<\/thead>\n
Spessore<\/td>\n0.3 – 150 mm<\/td>\n<\/tr>\n
Larghezza<\/td>\n500 – 2600 mm<\/td>\n<\/tr>\n
Lunghezza<\/td>\n500 – 16000 mm<\/td>\n<\/tr>\n
Tempers<\/td>\nO, T4, T6, T651<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Tubo<\/h3>\n\n\n\n\n\n\n\n\n
Parametro<\/th>\nSpessore<\/th>\n<\/tr>\n<\/thead>\n
Diametro esterno<\/td>\n6 – 300 mm<\/td>\n<\/tr>\n
Wall thickness<\/td>\n0.5 – 40 mm<\/td>\n<\/tr>\n
Lunghezza<\/td>\nup to 12000 mm<\/td>\n<\/tr>\n
Tempers<\/td>\nStati di fornitura comuni<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Barra \/ Tondino<\/h3>\n\n\n\n\n\n\n\n
Parametro<\/th>\nSpessore<\/th>\n<\/tr>\n<\/thead>\n
Diametro<\/td>\n3 – 300 mm<\/td>\n<\/tr>\n
Lunghezza<\/td>\nup to 12000 mm<\/td>\n<\/tr>\n
Tempers<\/td>\nStati di fornitura comuni<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Filo<\/h3>\n\n\n\n\n\n\n\n
Parametro<\/th>\nSpessore<\/th>\n<\/tr>\n<\/thead>\n
Diametro<\/td>\n0.8 – 30 mm<\/td>\n<\/tr>\n
Peso della bobina<\/td>\nmin 50 kg<\/td>\n<\/tr>\n
Tempers<\/td>\nO, T6<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Specifiche e denominazioni equivalenti<\/h2>\n\n\n\n\n\n\n\n\n
Denominazione<\/th>\nReference<\/th>\n<\/tr>\n<\/thead>\n
6\u2013400 mm<\/td>\nA96951<\/td>\n<\/tr>\n
EN AW<\/td>\nEN AW-6951<\/td>\n<\/tr>\n
Common standards<\/td>\nASTM B209, ASTM B210, EN 573, GB\/T 3190<\/td>\n<\/tr>\n
Serie<\/td>\n6000 (Al-Mg-Si brazing core)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Composizione chimica<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Elemento<\/th>\nContent (wt%)<\/th>\n<\/tr>\n<\/thead>\n
Silicio (Si)<\/td>\n0.20 – 0.50<\/td>\n<\/tr>\n
Ferro (Fe)<\/td>\n0,80 max<\/td>\n<\/tr>\n
Rame (Cu)<\/td>\n0.15 – 0.40<\/td>\n<\/tr>\n
Manganese (Mn)<\/td>\n0,10 max<\/td>\n<\/tr>\n
Magnesio (Mg)<\/td>\n0.40 – 0.80<\/td>\n<\/tr>\n
Cromo (Cr)<\/td>\n0.05 – 0.20<\/td>\n<\/tr>\n
Zinco (Zn)<\/td>\nFamiglia<\/td>\n<\/tr>\n
Titanio (Ti)<\/td>\n0,15 max<\/td>\n<\/tr>\n
Altri, ciascuno<\/td>\n0,05 max<\/td>\n<\/tr>\n
Altri, totale<\/td>\n0,15 max<\/td>\n<\/tr>\n
Alluminio (Al)<\/td>\nEquilibrio<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Propriet\u00e0 meccaniche in base al trattamento termico<\/h2>\n\n\n\n\n\n\n\n
Temperamento<\/th>\nTensile (MPa)<\/th>\nYield (MPa)<\/th>\nAllungamento (%)<\/th>\n<\/tr>\n<\/thead>\n
T6<\/td>\n270 – 310<\/td>\n230 – 270<\/td>\n8 – 12<\/td>\n<\/tr>\n
T4<\/td>\n200 – 240<\/td>\n120 – 160<\/td>\n14 – 18<\/td>\n<\/tr>\n
O<\/td>\n\u2264 160<\/td>\n\u2264 70<\/td>\n\u2265 18<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Guida alla scelta della tempra<\/h2>\n

O<\/h3>\n

Soft core for maximum formability before brazing; often the as-clad supplied condition.<\/p>\n

T4<\/h3>\n

Solution heat treated and naturally aged; good forming plus moderate strength.<\/p>\n

T6 \/ T651<\/h3>\n

Peak strength after artificial aging; used where the core must carry load after brazing.<\/p>\n

Caratteristiche principali<\/h2>\n

Brazeability<\/h3>\n

Engineered to survive vacuum and controlled-atmosphere brazing with low core erosion.<\/p>\n

Conducibilit\u00e0 termica<\/h3>\n

Good heat transfer for compact cooling systems.<\/p>\n

Resistenza alla corrosione<\/h3>\n

Resists atmospheric and chemical attack for long service life.<\/p>\n

Formabilit\u00e0<\/h3>\n

Forms into fins, manifolds, and intricate heat-exchanger shapes.<\/p>\n

Applicazioni<\/h2>\n
    \n
  • Automotive radiators, heaters, oil coolers<\/li>\n
  • HVAC condensers and evaporators<\/li>\n
  • Cryogenic heat-transfer equipment<\/li>\n
  • Electronics heat sinks and thermal modules<\/li>\n<\/ul>\n

    Note sulla lavorazione e sulla finitura superficiale<\/h2>\n

    6951 is normally supplied as clad brazing sheet (core plus 4343\/4045 cladding) for furnace brazing. It forms well and can be welded where cladding is absent, but the brazing cladding must be protected from contamination. Anodizing is possible but less common than for decorative 6xxx alloys.<\/p>\n

    Documenti di qualit\u00e0 e ispezione<\/h2>\n

    Every order ships with a Mill Test Certificate (MTC) recording composition and mechanical results. Our quality system is certified to ISO 9001, ISO 14001, and ISO 45001. Third-party SGS test reports can be arranged on request. Inspection covers dimensions, surface condition, and mechanical verification by temper.<\/p>\n

    Why Choose Linsy for 6951 Aluminum<\/h2>\n

    Linsy Aluminum is a Shenzhen-based aluminum manufacturer with more than 20 years of experience supplying the 1000 to 8000 series in plate, bar, tube, wire, coil, profile, and block forms. For 6951 aluminum, we support both off-the-shelf ranges and made-to-order dimensions.<\/p>\n

      \n
    • Certificazioni:<\/strong> ISO 9001, ISO 14001, and ISO 45001 management systems.<\/li>\n
    • Documents:<\/strong> A Mill Test Certificate (MTC) is issued with every order; third-party SGS test reports are available on request.<\/li>\n
    • Processing:<\/strong> In-house CNC machining, TIG\/MIG welding, laser cutting, and surface finishing (anodizing, polishing, mill finish, powder coating, PVC film).<\/li>\n
    • Lead time:<\/strong> Typical custom lead time is 10 to 60 days depending on temper, size, and quantity.<\/li>\n
    • Export:<\/strong> Shipped to 20+ countries across Europe, Asia, the Middle East, Africa, and the Americas.<\/li>\n<\/ul>\n

      Risorse correlate<\/h2>\n

      See the blog articles linked below for deeper background, and contact our team for a tailored quote on 6951 aluminum.<\/p>\n

      6951 Aluminum FAQ<\/h2>\n

      Is 6951 used as bare sheet or clad?<\/h3>\n

      Almost always as the core of clad brazing sheet, with a lower-melting cladding alloy such as 4343 or 4045 on one or both faces. Specify cladding when requesting a quote.<\/p>\n

      How does 6951 differ from 3003 for heat exchangers?<\/h3>\n

      3003 is a non-heat-treatable brazing core with lower strength; 6951 is heat-treatable and stronger after brazing, suiting higher-pressure exchangers.<\/p>\n

      Which tempers are typical for brazing sheet?<\/h3>\n

      O or T4 are common as-supplied conditions because they form easily before the braze cycle; T6 cores are used where post-braze strength matters.<\/p>\n

      Domande frequenti generali sugli ordini<\/h2>\n

      What is the typical lead time for custom aluminum orders?<\/h3>\n

      Custom sizes and tempers usually ship within 10 to 60 days. Confirm the exact window when you request a quote, as it depends on alloy, temper, dimensions, and order quantity.<\/p>\n

      Qual \u00e8 la quantit\u00e0 minima d'ordine (MOQ)?<\/h3>\n

      MOQ is flexible and reviewed case by case. Small lots and prototypes can often be accommodated; larger or standard runs are more economical. Share your required dimensions and quantity for a firm quote.<\/p>\n

      Which quality documents come with the order?<\/h3>\n

      Every order ships with a Mill Test Certificate (MTC). ISO 9001, ISO 14001, and ISO 45001 certifications apply to our management system. SGS third-party test reports can be arranged on request.<\/p>\n

      Can you cut, machine, or finish the material before shipping?<\/h3>\n

      Yes. We provide CNC machining, laser cutting, TIG\/MIG welding, and surface treatments including anodizing, polishing, powder coating, and PVC film protection.<\/p>\n

      Come posso richiedere un preventivo?<\/h3>\n

      Send your alloy\/temper, required form, dimensions, quantity, and any processing or certificate requirements. Our team returns a quote with lead time and shipping terms.<\/p>","protected":false},"excerpt":{"rendered":"

      6951 aluminum is a heat-treatable 6000-series alloy developed as a brazing-sheet core material for radiators and heat exchangers. Its balanced silicon and magnesium content gives good strength after brazing while resisting core erosion during vacuum or controlled-atmosphere brazing. Linsy supplies 6951 as sheet, coil, tube, bar, and wire in O, T4, and T6 tempers.<\/p>\n

      \nModuli disponibili:<\/strong> sheet \/ coil, tube, bar \/ rod, wire
      \nTemperamenti comuni:<\/strong> T6, T4, O
      \nSupporto per l'elaborazione:<\/strong> Lavorazione CNC, taglio laser, saldatura TIG\/MIG, anodizzazione, lucidatura, verniciatura a polvere
      \nDocumenti di qualit\u00e0:<\/strong> Rapporto MTC allegato a ogni ordine<\/p>","protected":false},"featured_media":9727,"template":"","meta":{"_seopress_titles_title":"6951 Aluminum Alloy Supplier \u2014 Brazing Sheet, Tube, Bar | Linsy","_seopress_titles_desc":"6951 aluminum alloy for brazed heat exchangers and HVAC. Good brazeability, corrosion resistance, and thermal conductivity. ISO 9001\/14001\/45001.","_seopress_robots_index":"","_seopress_robots_follow":"","_seopress_robots_imageindex":"","_seopress_robots_snippet":"","_seopress_robots_primary_cat":"none","_seopress_robots_breadcrumbs":"","_seopress_robots_freeze_modified_date":"","_seopress_robots_custom_modified_date":"","_seopress_robots_canonical":"","_seopress_social_fb_title":"","_seopress_social_fb_desc":"","_seopress_social_fb_img":"","_seopress_social_fb_img_attachment_id":0,"_seopress_social_fb_img_width":0,"_seopress_social_fb_img_height":0,"_seopress_social_twitter_title":"","_seopress_social_twitter_desc":"","_seopress_social_twitter_img":"","_seopress_social_twitter_img_attachment_id":0,"_seopress_social_twitter_img_width":0,"_seopress_social_twitter_img_height":0,"_seopress_redirections_value":"","_seopress_redirections_enabled":"","_seopress_redirections_enabled_regex":"","_seopress_redirections_logged_status":"both","_seopress_redirections_param":"","_seopress_redirections_type":301,"_seopress_analysis_target_kw":""},"product_brand":[],"product_cat":[89,99],"product_tag":[],"class_list":["post-9720","product","type-product","status-publish","has-post-thumbnail","product_cat-6000-series-aluminum-alloys","product_cat-most-popular-aluminum-grade","first","instock","shipping-taxable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/premiumalu.com\/it\/wp-json\/wp\/v2\/product\/9720","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/premiumalu.com\/it\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/premiumalu.com\/it\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/premiumalu.com\/it\/wp-json\/wp\/v2\/media\/9727"}],"wp:attachment":[{"href":"https:\/\/premiumalu.com\/it\/wp-json\/wp\/v2\/media?parent=9720"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/premiumalu.com\/it\/wp-json\/wp\/v2\/product_brand?post=9720"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/premiumalu.com\/it\/wp-json\/wp\/v2\/product_cat?post=9720"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/premiumalu.com\/it\/wp-json\/wp\/v2\/product_tag?post=9720"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}