![\"\"](\"https:\/\/premiumalu.com\/wp-content\/uploads\/2025\/06\/02-5456-material-positioning.jpg\")
<\/figure>\n\n\n\nN\u00ed\u017ee uveden\u00e9 limity jsou podle ASTM B209 pro plechy a desky. Obsah titanu se li\u0161\u00ed mezi sousedn\u00edmi jakostmi: 5456 povoluje max. 0,20, zat\u00edmco 5056 povoluje pouze max. 0,15, tak\u017ee tyto dv\u011b hodnoty nesm\u00ed b\u00fdt vz\u00e1jemn\u011b zam\u011b\u0148ov\u00e1ny.<\/p>\n\n\n\n Dv\u011b polo\u017eky si zaslou\u017e\u00ed pozornost na objedn\u00e1vce. Ho\u0159\u010d\u00edk na t\u00e9to \u00farovni je to, co dod\u00e1v\u00e1 pevnost, kter\u00e1 stav\u00ed 5456 nad 5083, tak\u017ee certifik\u00e1t vykazuj\u00edc\u00ed ho\u0159\u010d\u00edk bl\u00edzko spodn\u00ed hranice rozsahu by m\u011bl vyvolat ot\u00e1zku, jak velk\u00e1 \u010d\u00e1st pevnostn\u00ed v\u00fdhody z\u016fst\u00e1v\u00e1 zachov\u00e1na. M\u011b\u010f je omezena na 0,10 %, proto\u017ee m\u011b\u010f p\u0159\u00edmo p\u016fsob\u00ed proti korozn\u00ed odolnosti v mo\u0159sk\u00e9 vod\u011b.<\/p>\n\n\n\n Typick\u00e9 hodnoty n\u00ed\u017ee jsou \u010derp\u00e1ny z dat ASM a Aluminum Association pro v\u00e1lcovan\u00e9 v\u00fdrobky. Jsou u\u017eite\u010dn\u00e9 pro srovn\u00e1n\u00ed a ranou f\u00e1zi n\u00e1vrhu, ale zaru\u010den\u00e9 hodnoty se \u0159\u00edd\u00ed p\u0159\u00edslu\u0161nou specifikac\u00ed a tlou\u0161\u0165kou a rozhoduj\u00edc\u00ed pro skute\u010dn\u011b dodan\u00fd materi\u00e1l je atest hutn\u00edho podniku.<\/p>\n\n\n\n Pro cokoli \u0159\u00edzen\u00e9 normou ASTM B928 je z\u00e1vazn\u00fdm \u010d\u00edslem minim\u00e1ln\u00ed hodnota podle p\u0159edpisu, nikoli typick\u00e1 hodnota:<\/p>\n\n\n\n \u0158\u00e1dek, kter\u00fd zde hraje nejv\u011bt\u0161\u00ed roli, je prvn\u00ed. Ve srovn\u00e1n\u00ed s 5083-H116 poskytuje 5456-H116 p\u0159ibli\u017en\u011b o 40 MPa vy\u0161\u0161\u00ed pevnost v tahu a asi o 15 MPa vy\u0161\u0161\u00ed mez kluzu p\u0159i stejn\u00e9m minimu podle p\u0159edpisu, co\u017e je cel\u00fd komer\u010dn\u00ed d\u016fvod pro jeho volbu nam\u00edsto mnohem b\u011b\u017en\u011bji skladovan\u00e9 5083.<\/p>\n\n\n\n Senzibilizace je re\u017eim poruchy, kter\u00fd ur\u010duje, jak m\u016f\u017ee b\u00fdt 5456 specifikov\u00e1na. Nad p\u0159ibli\u017en\u011b 3 % ho\u0159\u010d\u00edku dlouhodob\u00e9 vystaven\u00ed v rozsahu 65 \u00b0C a v\u00fd\u0161e vytla\u010duje rozpu\u0161t\u011bn\u00fd ho\u0159\u010d\u00edk z tuh\u00e9ho roztoku do \u010d\u00e1stic beta f\u00e1ze pod\u00e9l hranic zrn. Jakmile tyto \u010d\u00e1stice vytvo\u0159\u00ed souvislou s\u00ed\u0165, slitina se st\u00e1v\u00e1 n\u00e1chylnou k mezikrystalov\u00e9 korozi, exfolia\u010dn\u00ed korozi a korozn\u00edmu prask\u00e1n\u00ed za nap\u011bt\u00ed \u2014 v\u0161echny tyto jevy postupuj\u00ed vnit\u0159n\u011b a jsou snadno p\u0159ehl\u00e9dnuteln\u00e9 p\u0159i vizu\u00e1ln\u00ed kontrole.<\/p>\n\n\n\n 5456 nem\u016f\u017ee b\u00fdt z tohoto d\u016fvodu vy\u0148ata tepeln\u00fdm zpracov\u00e1n\u00edm. Je to tepeln\u011b nezpracovateln\u00e1 slitina a neexistuje \u017e\u00e1dn\u00fd cyklus st\u00e1rnut\u00ed, kter\u00fd by rozpustil vytvo\u0159enou s\u00ed\u0165 na hranic\u00edch zrn. Jakmile k senzibilizaci dojde, stav je trval\u00fd.<\/p>\n\n\n\n H116 a H321 existuj\u00ed speci\u00e1ln\u011b proto, aby tento mechanismus odd\u00e1lily. Oba jsou stavy zpevn\u011bn\u00e9 deformac\u00ed, kter\u00e9 proch\u00e1zej\u00ed stabiliza\u010dn\u00edm tepeln\u00fdm zpracov\u00e1n\u00edm, je\u017e vede p\u0159\u00edpadn\u00e9 \u010d\u00e1stice beta f\u00e1ze do jemn\u00e9ho, dispergovan\u00e9ho rozlo\u017een\u00ed uvnit\u0159 zrn nam\u00edsto souvisl\u00e9ho filmu mezi nimi. ASTM B928 pak v\u00fdsledek ov\u011b\u0159uje: desky H116 a H321 mus\u00ed proj\u00edt zkou\u0161kou exfolia\u010dn\u00ed koroze s hodnocen\u00edm ne hor\u0161\u00edm ne\u017e PB a limitem \u00fabytku hmotnosti p\u0159i mezikrystalov\u00e9 korozi 15 mg\/cm\u00b2.<\/p>\n\n\n\n Praktick\u00e9 pravidlo je jednoduch\u00e9: pokud je sou\u010d\u00e1st vystavena mo\u0159sk\u00e9 vod\u011b a z\u016fst\u00e1v\u00e1 na m\u00edst\u011b roky, mus\u00ed \u0159\u00e1dek stavu zpracov\u00e1n\u00ed uv\u00e1d\u011bt H116 nebo H321. Nab\u00eddka, kter\u00e1 pro stejnou sou\u010d\u00e1st nab\u00edz\u00ed H112, je levn\u011bj\u0161\u00ed proto, \u017ee nenese korozn\u00ed kvalifikaci, nikoli proto, \u017ee by kov byl n\u011bjak odli\u0161n\u00fd.<\/p>\n\n\n\n Tyto dv\u011b hodnoty vodivosti jsou ni\u017e\u0161\u00ed, ne\u017e v\u011bt\u0161ina konstrukt\u00e9r\u016f o\u010dek\u00e1v\u00e1, a p\u0159\u00edmo vypl\u00fdvaj\u00ed z obsahu ho\u0159\u010d\u00edku. Ka\u017ed\u00e9 procento ho\u0159\u010d\u00edku v tuh\u00e9m roztoku rozptyluje elektrony a fonony, tak\u017ee 5456 s p\u0159ibli\u017en\u011b 29 % IACS a 120 W\/m\u00b7K se nach\u00e1z\u00ed v\u00fdrazn\u011b pod 5052 s p\u0159ibli\u017en\u011b 35 % IACS a 138 W\/m\u00b7K. Jak\u00e9koli pou\u017eit\u00ed, kde sou\u010d\u00e1st slou\u017e\u00ed jako vodi\u010d nebo tepeln\u00fd rozvad\u011b\u010d, pracuje proti chemick\u00e9mu slo\u017een\u00ed.<\/p>\n\n\n\n V mo\u0159sk\u00e9 vod\u011b a n\u00e1mo\u0159n\u00edch atmosf\u00e9r\u00e1ch si 5456 vede dob\u0159e \u2014 za p\u0159edpokladu, \u017ee stav zpracov\u00e1n\u00ed nese svou korozn\u00ed kvalifikaci. Oxidov\u00fd film, kter\u00fd se samovoln\u011b vytv\u00e1\u0159\u00ed, je stabilizov\u00e1n obsahem ho\u0159\u010d\u00edku a chromu, co\u017e zpomaluje \u00fatok chlorid\u016f a udr\u017euje d\u016flkovou korozi m\u011blkou. V praxi to znamen\u00e1 ni\u017e\u0161\u00ed \u00fadr\u017ebu v such\u00e9m doku ve srovn\u00e1n\u00ed s nat\u00edranou ocel\u00ed a dlouhou provozn\u00ed historii na opl\u00e1\u0161t\u011bn\u00ed trupu.<\/p>\n\n\n\n T\u0159i podm\u00ednky tento obraz m\u011bn\u00ed:<\/p>\n\n\n\n Sva\u0159ov\u00e1n\u00ed.<\/strong> 5456 welds well by MIG and TIG, but joint design cannot use parent-metal properties. Because the alloy is non-heat-treatable, the heat-affected zone is annealed back toward the O condition and stays there \u2014 no post-weld treatment restores it. Weld-metal properties from an ER5556 deposit on 5083 or 5456 base plate run about 280\u2013310 MPa tensile and 130\u2013165 MPa yield, against 255 MPa yield for H116 parent metal. That is roughly a 35\u201345% drop in yield near the joint, and AWS D1.2 allowable stresses already assume this, so design to the annealed HAZ value rather than the temper purchased.<\/p>\n\n\n\n Tv\u00e1\u0159en\u00ed.<\/strong> Formability follows the temper. O and H111 handle heavy bending and drawing; H116 and H321 will take moderate forming but bend radii must be opened up relative to what a shop accustomed to 5052 would expect. Cold-forming H321 plate hard and then putting it into service invites both cracking and higher residual stress, which feeds directly into the SCC mechanism above.<\/p>\n\n\n\n Obr\u00e1b\u011bn\u00ed.<\/strong> 5456 machines acceptably but is gummier than the heat-treatable alloys, so chip evacuation and sharp tooling matter more than spindle power. Chip control improves with higher rake angles and positive cutting geometry.<\/p>\n\n\n\n Povrchov\u00e1 \u00faprava.<\/strong> Like all 5xxx alloys, 5456 anodizes to a muted grey rather than a bright finish, and it will not colour-match a 6063 extrusion. If appearance is a criterion, specify that requirement before the order is placed rather than discovering it at assembly.<\/p>\n\n\n\n Reading down the magnesium column explains almost everything about how these four behave. Higher magnesium buys strength and costs temperature capability: the two high-magnesium grades carry the 65 \u00b0C restriction, while 5052 at 2.2\u20132.8% does not. Availability runs the other way \u2014 5083 is stocked almost everywhere, and 5456 is a special order at many service centres, which is reflected in both price and lead time.<\/p>\n\n\n\n The entries below answer whether to use the alloy. Applications are covered separately in the next section \u2014 this section covers the decision, that one covers the destinations.<\/p>\n\n\n\n Go \u2014 5456 fits when:<\/strong><\/p>\n\n\n\n No-Go \u2014 choose something else when:<\/strong><\/p>\n\n\n\n N\u00e1mo\u0159n\u00ed a lodn\u00ed pr\u016fmysl.<\/strong> Hull plating, decks, bulkheads, and superstructures on patrol boats, workboats, and high-speed craft are the core application set. 5456 earns its place where weight reduction is worth paying for, since the strength margin over 5083 lets a hull designer remove thickness rather than add it.<\/p>\n\n\n\n Defence and protective structures.<\/strong> Armor plate for military vehicles, military bridging components, and blast-resistant assemblies use 5456 for energy absorption combined with ballistic performance. MIL-DTL-46027 is one specification covering this territory, and it carries its own temper and testing requirements beyond the commercial standards.<\/p>\n\n\n\n Pressure vessels and heavy welded fabrications.<\/strong> 5456 appears in storage tanks, pressure vessels, and large transportation frames where welded joint integrity governs the design. Joint efficiency must always be calculated from the annealed HAZ properties, not from H116 parent-metal figures.<\/p>\n\n\n\n Cryogenic and offshore service.<\/strong> Unlike carbon steel, 5xxx alloys do not suffer a ductile-to-brittle transition as temperature falls, and both strength and elongation improve. That makes 5456 usable for cryogenic tanks and for offshore structures exposed to cold climates.<\/p>\n\n\n\n A 5456 enquiry that carries the following items will come back priced correctly the first time. One that does not will return a cheaper quote for material that will not pass inspection:<\/p>\n\n\n\n Linsy supplies 5456 in plate, sheet, bar, tube, and extruded profiles, most commonly in O, H111, H112, H116, and H321 temper. Typical plate-range supply runs from 6 mm up to 120 mm thick, with sheet and coil down to about 0.5 mm; other sizes can be discussed against the order specification. Every shipment leaves with a mill test certificate documenting composition and mechanical properties, and third-party SGS reports \u2014 including chemical, mechanical, ultrasonic, and dimensional \u2014 can be arranged on request. Production runs under ISO 9001, ISO 14001, and ISO 45001 systems.<\/p>\n\n\n\n Custom sizes for non-stock items typically run 10\u201360 days depending on alloy, dimensions, processing, and order complexity, and low-MOQ custom production is available. In-house support covers CNC machining, MIG and TIG welding, laser cutting, and surface finishing including anodizing and polishing.<\/p>\n\n\n\n 5456 buys roughly 40 MPa of additional strength over 5083-H116 at the same code minimum, and it charges for that with two hard conditions: the temper must be H116 or H321 for anything touching seawater, and the structure must stay below about 65 \u00b0C or move to 5454. Those two rules are where 5456 projects go wrong, and neither appears in a datasheet handed over at quotation stage.<\/p>\n\n\n\n Linsy Aluminum works with exactly that boundary. We supply 5456 across plate, sheet, bar, tube, and profiles in O, H111, H112, H116, and H321, with the mill test certificate issued for every order and optional SGS reports where a project requires third-party verification. If there is any doubt about whether the service temperature or the temper is right for a design, send the drawing and the operating conditions \u2014 we will confirm which specification actually needs to appear on the purchase order before it is placed.<\/p>\n\n\n\n Yes, by a useful margin at the code minimum. ASTM B928 sets 5456-H116 at 315 MPa tensile and 230 MPa yield against 275 MPa and 215 MPa for 5083-H116, so the difference is about 40 MPa tensile and 15 MPa yield in the same thickness range. The trade-off is supply: 5083 is stocked far more widely, and its marine service record is documented across more vessels.<\/p>\n\n\n\n Above about 3% magnesium, extended exposure around 65 \u00b0C and above pulls dissolved magnesium out of solution and precipitates beta phase along grain boundaries. That creates an anodic path between grains, opening the door to intergranular corrosion, exfoliation, and stress corrosion cracking. Because 5456 cannot be heat treated, the condition cannot be reversed once it develops. Parts near engines, heated tanks, or exhaust runs are the usual offenders, and 5454 is the standard substitute in those zones.<\/p>\n\n\n\n H116 or H321, stated with ASTM B928. Both receive a stabilising treatment that disperses beta-phase particles inside the grains rather than letting them form a continuous film at the boundaries, and B928 verifies the outcome with an exfoliation test at PB or better and an intergranular mass-loss limit of 15 mg\/cm\u00b2. H112 sits outside that qualification and is not a substitute in saltwater contact.<\/p>\n\n\n\n The heat-affected zone anneals back toward the O condition and stays there, since no post-weld heat treatment restores strain hardening. An ER5556 deposit on 5456 base plate typically gives 280\u2013310 MPa tensile and 130\u2013165 MPa yield, against about 255 MPa yield for H116 parent metal \u2014 a 35\u201345% reduction near the weld. AWS D1.2 allowable stresses already assume this, so joints must be designed to annealed HAZ values rather than the specified temper.<\/p>\n\n\n\n Yes, but it does not produce the finish most people expect. Like all 5xxx alloys it anodizes to a muted grey rather than a bright surface, and it will not colour-match a 6063 extrusion. Where appearance matters, that needs to be agreed before ordering, or captured through paint and coating instead.<\/p>","protected":false},"excerpt":{"rendered":" What Is 5456 Aluminum? 5456 is a wrought aluminum-magnesium alloy in the 5xxx series, with 4.7\u20135.5% magnesium replacing solid-solution strengthening where heat treatment would otherwise go. It is non-heat-treatable, so every extra megapascal comes from strain hardening and alloy content rather than from a quench-and-age cycle. Manganese adds toughness and chromium controls grain structure, which […]<\/p>\n","protected":false},"author":1,"featured_media":10613,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_seopress_titles_title":"5456 Aluminum: Properties, Tempers, and Marine Applications","_seopress_titles_desc":"A practical 5456 aluminum guide: mechanical properties by temper, why H116 and H321 matter for seawater, welding filler choice, and comparisons with 5083.","_seopress_robots_index":"","_seopress_robots_follow":"","_seopress_robots_imageindex":"","_seopress_robots_snippet":"","_seopress_robots_primary_cat":"","_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":"","_seopress_redirections_param":"","_seopress_redirections_type":0,"_seopress_analysis_target_kw":"","footnotes":""},"categories":[177],"tags":[],"class_list":["post-8859","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-5000_6000-series-aluminum"],"_links":{"self":[{"href":"https:\/\/premiumalu.com\/cs\/wp-json\/wp\/v2\/posts\/8859","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/premiumalu.com\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/premiumalu.com\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/premiumalu.com\/cs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/premiumalu.com\/cs\/wp-json\/wp\/v2\/comments?post=8859"}],"version-history":[{"count":2,"href":"https:\/\/premiumalu.com\/cs\/wp-json\/wp\/v2\/posts\/8859\/revisions"}],"predecessor-version":[{"id":10619,"href":"https:\/\/premiumalu.com\/cs\/wp-json\/wp\/v2\/posts\/8859\/revisions\/10619"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/premiumalu.com\/cs\/wp-json\/wp\/v2\/media\/10613"}],"wp:attachment":[{"href":"https:\/\/premiumalu.com\/cs\/wp-json\/wp\/v2\/media?parent=8859"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/premiumalu.com\/cs\/wp-json\/wp\/v2\/categories?post=8859"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/premiumalu.com\/cs\/wp-json\/wp\/v2\/tags?post=8859"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}Prvek<\/th> Slo\u017een\u00ed (% hmotnostn\u011b)<\/th><\/tr><\/thead> K\u0159em\u00edk (Si)<\/td> 0,25 max.<\/td><\/tr> \u017delezo (Fe)<\/td> max 0,40<\/td><\/tr> M\u011b\u010f (Cu)<\/td> 0,10 max<\/td><\/tr> Mangan (Mn)<\/td> 0.50\u20131.00<\/td><\/tr> Ho\u0159\u010d\u00edk (Mg)<\/td> 4.7\u20135.5<\/td><\/tr> Chrom (Cr)<\/td> 0.05\u20130.20<\/td><\/tr> Zinek (Zn)<\/td> 0,25 max.<\/td><\/tr> Titan (Ti)<\/td> max 0,20<\/td><\/tr> Ostatn\u00ed, ka\u017ed\u00fd<\/td> 0,05 max<\/td><\/tr> Ostatn\u00ed, celkem<\/td> 0,15 max<\/td><\/tr> Hlin\u00edk (Al)<\/td> Bilance<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n Mechanick\u00e9 vlastnosti 5456 podle stavu zpracov\u00e1n\u00ed<\/h2>\n\n\n\n
Temperament<\/th> Pevnost v tahu (MPa)<\/th> Mez kluzu (MPa)<\/th> Prodlou\u017een\u00ed (%)<\/th> Typick\u00e1 tvrdost (HB)<\/th><\/tr><\/thead> O (\u017e\u00edhan\u00fd)<\/td> 310<\/td> 159<\/td> 24<\/td> \u2014<\/td><\/tr> H111<\/td> 310<\/td> 180<\/td> 14<\/td> \u2014<\/td><\/tr> H112<\/td> 310<\/td> 166<\/td> 22<\/td> \u2014<\/td><\/tr> H116 \/ H321<\/td> 350<\/td> 255<\/td> 12<\/td> 90<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n ![\"\"](\"https:\/\/premiumalu.com\/wp-content\/uploads\/2025\/06\/03-5456-vs-5083-strength.jpg\")
<\/figure>\n\n\n\nTemperament<\/th> Rozsah tlou\u0161\u0165ky<\/th> Pevnost v tahu, min. (MPa)<\/th> Mez kluzu, min. (MPa)<\/th> Ta\u017enost, min. (%)<\/th><\/tr><\/thead> 5456-H116 \/ H321<\/td> 3\u201340 mm<\/td> 315<\/td> 230<\/td> 10<\/td><\/tr> 5083-H116 \/ H321<\/td> 3\u201350 mm<\/td> 275<\/td> 215<\/td> 10<\/td><\/tr> 5086-H116 \/ H321<\/td> 3\u201350 mm<\/td> 240<\/td> 195<\/td> 10<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n Pro\u010d existuj\u00ed H116 a H321: Limit senzibilizace p\u0159i 65 \u00b0C<\/h2>\n\n\n\n
![\"\"](\"https:\/\/premiumalu.com\/wp-content\/uploads\/2025\/06\/04-h116-h321-sensitization.jpg\")
<\/figure>\n\n\n\nStav<\/th> Co to znamen\u00e1 v praxi<\/th> Typick\u00fd jazyk nab\u00eddky<\/th><\/tr><\/thead> H116<\/td> Zpevn\u011bno deformac\u00ed, stabilizov\u00e1no pro spln\u011bn\u00ed limit\u016f exfoliace a mezikrystalov\u00e9 koroze podle B928<\/td> Specifikov\u00e1no tam, kde je vy\u017eadov\u00e1no schv\u00e1len\u00ed klasifika\u010dn\u00ed spole\u010dnosti<\/td><\/tr> H321<\/td> Zpevn\u011bno deformac\u00ed a stabilizov\u00e1no s \u0159\u00edzen\u00fdm krokem studen\u00e9ho tv\u00e1\u0159en\u00ed<\/td> Specifikov\u00e1no pro sva\u0159ovan\u00e9 konstrukce s definovan\u00fdmi mechanick\u00fdmi minimy<\/td><\/tr> H112<\/td> Lehce zpevn\u011bno deformac\u00ed z v\u00fdrobn\u00edho procesu, bez korozn\u00ed kvalifikace<\/td> P\u0159ijateln\u00e9 pro obecn\u00e9 konstrukce, nikoli samostatn\u011b pro kontakt s mo\u0159skou vodou<\/td><\/tr> O<\/td> Pln\u011b \u017e\u00edh\u00e1no, maxim\u00e1ln\u00ed tva\u0159itelnost<\/td> Pou\u017e\u00edv\u00e1 se pro n\u00e1ro\u010dn\u00e9 tv\u00e1\u0159en\u00ed, obvykle n\u00e1sledovan\u00e9 sva\u0159ov\u00e1n\u00edm<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n Fyzik\u00e1ln\u00ed vlastnosti 5456<\/h2>\n\n\n\n
Majetek<\/th> Typick\u00e1 hodnota<\/th><\/tr><\/thead> Hustota<\/td> 2,66 g\/cm\u00b3<\/td><\/tr> Rozsah t\u00e1n\u00ed<\/td> 570\u2013638 \u00b0C<\/td><\/tr> Tepeln\u00e1 vodivost<\/td> 117\u2013127 W\/m\u00b7K<\/td><\/tr> Elektrick\u00e1 vodivost<\/td> 28,5\u201329,5 % IACS<\/td><\/tr> Modul pru\u017enosti<\/td> 69\u201374 GPa<\/td><\/tr> Koeficient tepeln\u00e9 rozta\u017enosti<\/td> 23.9 \u00d7 10-\u2076 \/\u00b0C<\/td><\/tr> Magnetick\u00e1 odezva<\/td> Nemagnetick\u00e1<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n Korozn\u00ed odolnost a n\u00e1mo\u0159n\u00ed pou\u017eit\u00ed<\/h2>\n\n\n\n
![\"\"](\"https:\/\/premiumalu.com\/wp-content\/uploads\/2025\/06\/05-marine-corrosion-temper.jpg\")
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Pr\u00e1ce s 5456: tv\u00e1\u0159en\u00ed, sva\u0159ov\u00e1n\u00ed a obr\u00e1b\u011bn\u00ed<\/h2>\n\n\n\n
V\u00fdpl\u0148<\/th> Obsah ho\u0159\u010d\u00edku<\/th> When It Fits<\/th> Watch Out For<\/th><\/tr><\/thead> ER5556<\/td> ~5.0%<\/td> Default for 5456 \u2014 matches the base alloy and carries corrosion performance best<\/td> Limited availability outside marine supply chains<\/td><\/tr> ER5183<\/td> ~4.8%<\/td> Where maximum as-welded strength on the joint matters<\/td> Confirm against the approved procedure<\/td><\/tr> ER5356<\/td> ~4.5%<\/td> General 5xxx fabrication, widely stocked<\/td> Not preferred for sustained service above about 65 \u00b0C<\/td><\/tr> ER4043<\/td> Silicon-bearing<\/td> Avoid on 5456<\/td> Silicon combines with magnesium into brittle Mg\u2082Si and the weld anodizes black<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n 5456 vs 5083 vs 5086 vs 5052: How to Choose<\/h2>\n\n\n\n
Alloy and Temper<\/th> Tensile, min (MPa)<\/th> Yield, min (MPa)<\/th> Magnesium (%)<\/th> Where It Wins<\/th><\/tr><\/thead> 5456-H116<\/td> 315<\/td> 230<\/td> 4.7\u20135.5<\/td> Highest strength of the group in seawater contact<\/td><\/tr> 5083-H116<\/td> 275<\/td> 215<\/td> 4.0\u20134.9<\/td> Broadest availability, best-documented marine record<\/td><\/tr> 5086-H116<\/td> 240<\/td> 195<\/td> 3.5\u20134.5<\/td> Good marine performance at lower cost and better formability<\/td><\/tr> 5052-H32<\/td> 215<\/td> 160<\/td> 2.2\u20132.8<\/td> Forming-heavy sheet work, no sensitization limit<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n Go\/No-Go: When to Specify 5456<\/h2>\n\n\n\n
![\"\"](\"https:\/\/premiumalu.com\/wp-content\/uploads\/2025\/06\/07-applications-go-no-go.jpg\")
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Where 5456 Is Used<\/h2>\n\n\n\n
V\u00fdhody a omezen\u00ed na prvn\u00ed pohled<\/h2>\n\n\n\n
Rozm\u011br<\/th> V\u00fdhoda<\/th> Omezen\u00ed<\/th><\/tr><\/thead> S\u00edla<\/td> Highest as-fabricated strength of the common 5xxx alloys<\/td> No heat-treat route exists to raise it further<\/td><\/tr> Koroze<\/td> Excellent seawater performance with H116\/H321 qualification<\/td> Requires that temper; H112 carries no corrosion qualification<\/td><\/tr> Teplota<\/td> Stable in cold service, including cryogenic<\/td> Unusable above roughly 65 \u00b0C because of sensitization<\/td><\/tr> Sva\u0159itelnost<\/td> Welds cleanly by MIG and TIG with matching filler<\/td> HAZ anneals to O condition with ~35\u201345% yield loss, permanent<\/td><\/tr> Dostupnost<\/td> Supplied by marine-focused mills and stockists<\/td> Thinner supply chain and longer lead times than 5083<\/td><\/tr> N\u00e1klady<\/td> Justifies itself where strength removes thickness<\/td> Higher per-kilo price and often a customs temper requirement<\/td><\/tr> Tvarovatelnost<\/td> Workable in O and H111<\/td> H116\/H321 need wide bend radii and careful cold work<\/td><\/tr> Vzhled<\/td> Acceptable with paint or coating<\/td> Anodizes grey, will not bright-match 6063<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n Sourcing 5456: What to Specify<\/h2>\n\n\n\n
Specification Item<\/th> What to State<\/th> Why It Changes the Quote<\/th><\/tr><\/thead> Temperament<\/td> H116 or H321 for anything touching seawater<\/td> Corrosion-tested plate costs more than H112<\/td><\/tr> Standardn\u00ed<\/td> ASTM B928 for marine, B209 for general product form<\/td> Each carries different test requirements<\/td><\/tr> Thickness range<\/td> Relevant ranges change mechanical minimums<\/td> Minimums drop as thickness increases<\/td><\/tr> Exfoliation \/ IGC test<\/td> Required if the part is contact seawater<\/td> B928 requires \u2264PB and \u226415 mg\/cm\u00b2<\/td><\/tr> certificates<\/td> MTC required; SGS testing if specified by the project<\/td> Traceability is part of the deliverable<\/td><\/tr> Form and size<\/td> Plate, sheet, bar, tube, or profile with dimensions<\/td> Determines mill routing and lead time<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n Z\u00e1v\u011br<\/h2>\n\n\n\n
\u010casto kladen\u00e9 ot\u00e1zky<\/h2>\n\n\n\n
Is 5456 stronger than 5083?<\/h3>\n\n\n\n
Why is 65 \u00b0C the stated limit for 5456?<\/h3>\n\n\n\n
Which temper should be specified for a seawater-facing hull plate?<\/h3>\n\n\n\n
What happens to strength after welding 5456?<\/h3>\n\n\n\n
Can 5456 be anodized?<\/h3>\n\n\n\n