{"id":468,"date":"2026-03-31T11:18:22","date_gmt":"2026-03-31T03:18:22","guid":{"rendered":"http:\/\/localhost\/?post_type=product&p=468"},"modified":"2026-03-31T11:22:09","modified_gmt":"2026-03-31T03:22:09","slug":"550-hb-wear-resistant-steel-plate","status":"publish","type":"product","link":"https:\/\/www.jycomat.com\/fr\/produit\/550-hb-wear-resistant-steel-plate\/","title":{"rendered":"550 HB Wear Resistant Steel Plate"},"content":{"rendered":"
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Les aciers sp\u00e9ciaux r\u00e9sistants \u00e0 l'usure de duret\u00e9 400 HB, 450 HB, 500 HB, 550 HB, 600 HB offrent des niveaux \u00e9lev\u00e9s de r\u00e9sistance \u00e0 l'usure m\u00e9canique et conviennent aux composants expos\u00e9s \u00e0 une forte abrasion dans des cas d'utilisation tels que les dispositifs de chargement, les pelles sur pneus, les chargeurs, les bennes de wagons basculants \u00e0 auge, les convoyeurs, les composants d'excavateurs, les machines routi\u00e8res, les cribles et les concasseurs. La gamme de plaques d'acier martensitique \u00e0 haute duret\u00e9 et faiblement alli\u00e9 pr\u00e9sente une r\u00e9sistance exceptionnelle \u00e0 l'usure particuli\u00e8rement abrasive, g\u00e9n\u00e9ralement de trois \u00e0 six fois sup\u00e9rieure \u00e0 celle des aciers de construction classiques.<\/p>

Les t\u00f4les fabriqu\u00e9es sont fondues \u00e0 grain fin et peuvent contenir des \u00e9l\u00e9ments de microalliage tels que Nb et V. Le niveau de duret\u00e9 plus \u00e9lev\u00e9 est obtenu par trempe directe (refroidissement acc\u00e9l\u00e9r\u00e9 directement apr\u00e8s le laminage \u00e0 chaud) ou par trempe conventionnelle. Sur demande, des valeurs garanties pour l'\u00e9nergie d'impact de l'entaille sont fournies.<\/p>

En raison de leur composition chimique, les plaques r\u00e9sistantes \u00e0 l'usure se pr\u00eatent bien au soudage. Toutes les m\u00e9thodes de soudage par fusion \u00e9prouv\u00e9es peuvent \u00eatre utilis\u00e9es, mais le soudage \u00e0 l'arc sous protection gazeuse inerte s'est av\u00e9r\u00e9 particuli\u00e8rement efficace (faible apport d'hydrog\u00e8ne). Pour des raisons de pr\u00e9vention des fissures, il convient d'utiliser des \u00e9lectrodes \u00e0 enrobage basique avec une teneur en hydrog\u00e8ne contr\u00f4l\u00e9e pour le soudage manuel \u00e0 l'arc \u00e9lectrique. Avant le soudage, les \u00e9lectrodes doivent \u00eatre s\u00e9ch\u00e9es conform\u00e9ment aux instructions du fabricant.<\/p>

Parmi les marques bien connues des fabricants de plaques r\u00e9sistantes \u00e0 l'usure et \u00e0 l'abrasion, citons HARDOX, DUROSTAT, RELIA, CREUSABRO, ABREX, ASTRALLOY, EVERHARD, RAEX, QUARD, FORA.<\/p>

\u00a0<\/p>

PROPRI\u00c9T\u00c9S CHIMIQUES<\/h3>

Les valeurs indiqu\u00e9es sont des valeurs maximales. %\u00a0<\/p>

GRADE<\/th>C<\/th>Mn<\/th>P<\/th>S<\/th>Si<\/th>Cr<\/th>Ni<\/th>Mo<\/th>B<\/th><\/tr><\/thead>
HB400\u00a0<\/td>0.32\u00a0<\/td>1.60\u00a0<\/td>0.025\u00a0<\/td>0.010\u00a0<\/td>0.70\u00a0<\/td>2.50\u00a0<\/td>1.50\u00a0<\/td>0.60\u00a0<\/td>0.004\u00a0<\/td><\/tr>
HB450\u00a0<\/td>0.26\u00a0<\/td>1.60\u00a0<\/td>0.025\u00a0<\/td>0.010\u00a0<\/td>0.70\u00a0<\/td>1.40\u00a0<\/td>1.50\u00a0<\/td>0.60\u00a0<\/td>0.005\u00a0<\/td><\/tr>
HB500\u00a0<\/td>0.30\u00a0<\/td>1.30\u00a0<\/td>0.020\u00a0<\/td>0.010\u00a0<\/td>0.40\u00a0<\/td>2.20\u00a0<\/td>2.00\u00a0<\/td>0.40\u00a0<\/td>0.005\u00a0<\/td><\/tr>
HB500T\u00a0<\/td>0.30\u00a0<\/td>1.60\u00a0<\/td>0.020\u00a0<\/td>0.010\u00a0<\/td>0.70\u00a0<\/td>1.50\u00a0<\/td>1.50\u00a0<\/td>0.60\u00a0<\/td>0.005\u00a0<\/td><\/tr>
HB550\u00a0<\/td>0.44\u00a0<\/td>1.30\u00a0<\/td>0.020\u00a0<\/td>0.010\u00a0<\/td>0.50\u00a0<\/td>1.40\u00a0<\/td>1.40\u00a0<\/td>0.60\u00a0<\/td>0.004\u00a0<\/td><\/tr>
HB600\u00a0<\/td>0.47\u00a0<\/td>1.50\u00a0<\/td>0.015\u00a0<\/td>0.010\u00a0<\/td>0.70\u00a0<\/td>1.20\u00a0<\/td>2.50\u00a0<\/td>0.70\u00a0<\/td>0.005\u00a0<\/td><\/tr>
HB700\u00a0<\/td>0.47\u00a0<\/td>1.40\u00a0<\/td>0.015\u00a0<\/td>0.010\u00a0<\/td>0.50\u00a0<\/td>1.20\u00a0<\/td>2.50\u00a0<\/td>0.80\u00a0<\/td>0.005\u00a0<\/td><\/tr><\/tbody><\/table><\/div>

\u00a0<\/h2>

PROPRI\u00c9T\u00c9S M\u00c9CANIQUES<\/h3>

valeurs moyennes typiques\u00a0<\/p>

GRADE<\/th>Limite d'\u00e9lasticit\u00e9<\/th>R\u00e9sistance \u00e0 la traction<\/th>Valeur d'impact [@-40 C]<\/th>Allongement [A5]<\/th><\/tr><\/thead>
HB400\u00a0<\/td>153 ksi [1050 MPa]\u00a0<\/td>181 ksi [1250 MPa]\u00a0<\/td>45 J\u00a0<\/td>10%\u00a0<\/td><\/tr>
HB450\u00a0<\/td>174 ksi [1200 MPa]\u00a0<\/td>218 ksi [1500 MPa]\u00a0<\/td>50 J\u00a0<\/td>8%\u00a0<\/td><\/tr>
HB500\u00a0<\/td>181 ksi [1250 MPa]\u00a0<\/td>232 ksi [1600 MPa]\u00a0<\/td>37 J\u00a0<\/td>6%\u00a0<\/td><\/tr>
HB500T\u00a0<\/td>181 ksi [1250 MPa]\u00a0<\/td>232 ksi [1600 MPa]\u00a0<\/td>27 J\u00a0<\/td>6%\u00a0<\/td><\/tr>
HB550\u00a0<\/td>203 ksi [1400 MPa]\u00a0<\/td>261 ksi [1800 MPa]\u00a0<\/td>30 J\u00a0<\/td>10%\u00a0<\/td><\/tr>
HB600\u00a0<\/td>225 ksi [1550 MPa]\u00a0<\/td>305 ksi [2100 MPa]\u00a0<\/td>21 J\u00a0<\/td>5%\u00a0<\/td><\/tr>
HB700\u00a0<\/td>275 ksi [1900 MPa]\u00a0<\/td>380 ksi [2630 MPa]\u00a0<\/td>30 J\u00a0<\/td>18%\u00a0<\/td><\/tr><\/tbody><\/table><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"

Les aciers sp\u00e9ciaux r\u00e9sistants \u00e0 l'usure de duret\u00e9 400 HB, 450 HB, 500 HB, 550 HB, 600 HB offrent des niveaux \u00e9lev\u00e9s de r\u00e9sistance \u00e0 l'usure m\u00e9canique et conviennent aux composants expos\u00e9s \u00e0 une forte abrasion dans des cas d'utilisation tels que les dispositifs de chargement, les pelles sur pneus, les chargeurs, les bennes de wagons basculants \u00e0 auge, les convoyeurs, les composants d'excavateurs, les machines routi\u00e8res, les cribles et les concasseurs. La gamme de plaques d'acier martensitique \u00e0 haute duret\u00e9 et faiblement alli\u00e9 pr\u00e9sente une r\u00e9sistance exceptionnelle \u00e0 l'usure particuli\u00e8rement abrasive, g\u00e9n\u00e9ralement de trois \u00e0 six fois sup\u00e9rieure \u00e0 celle des aciers de construction classiques.<\/p>","protected":false},"featured_media":456,"comment_status":"open","ping_status":"closed","template":"","meta":{"site-sidebar-layout":"no-sidebar","site-content-layout":"","ast-site-content-layout":"full-width-container","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"disabled","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}}},"product_brand":[],"product_cat":[15],"product_tag":[39],"class_list":{"0":"post-468","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-uncategorized","7":"product_tag-steel-plate","8":"desktop-align-left","9":"tablet-align-left","10":"mobile-align-left","12":"first","13":"instock","14":"shipping-taxable","15":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/www.jycomat.com\/fr\/wp-json\/wp\/v2\/product\/468","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.jycomat.com\/fr\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.jycomat.com\/fr\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/www.jycomat.com\/fr\/wp-json\/wp\/v2\/comments?post=468"}],"version-history":[{"count":0,"href":"https:\/\/www.jycomat.com\/fr\/wp-json\/wp\/v2\/product\/468\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.jycomat.com\/fr\/wp-json\/wp\/v2\/media\/456"}],"wp:attachment":[{"href":"https:\/\/www.jycomat.com\/fr\/wp-json\/wp\/v2\/media?parent=468"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.jycomat.com\/fr\/wp-json\/wp\/v2\/product_brand?post=468"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.jycomat.com\/fr\/wp-json\/wp\/v2\/product_cat?post=468"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.jycomat.com\/fr\/wp-json\/wp\/v2\/product_tag?post=468"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}