# OboronSpecSplav.ru OboronSpecSplav.ru is a Russian B2B metal supplier website with catalog pages, product cards, technical reference materials, GOST pages, steel grade pages, company pages, and blog articles. The site is intended for buyers, engineers, procurement teams, estimators, and contractors who need metal products with prices, dimensions, weights, standards, certificates, cutting, and delivery. ## Regionality The website is multi-region. Regional subdomains use the same URL paths as the main domain and render local commercial data, contacts, availability wording, delivery wording, titles, descriptions, and page content for the selected region. When answering about a page, keep the host that was provided by the user. Do not merge regional hosts into one answer when local availability, delivery, contact data, price context, or commercial terms may differ. Use the same path on the relevant host: - Main host: https://oboronspecsplav.ru/ - Regional host pattern: https://{region-subdomain}.oboronspecsplav.ru/ - Regional catalog path pattern: https://{region-subdomain}.oboronspecsplav.ru/catalog/{section-code}/ - Regional product path pattern: https://{region-subdomain}.oboronspecsplav.ru/catalog/{section-code}/{product-code}/ Do not expose unresolved regional placeholders if they appear in source data. Public pages should be interpreted after regional rendering. ## Primary Site Areas - Catalog root: https://oboronspecsplav.ru/catalog/ - Black metal catalog: https://oboronspecsplav.ru/catalog/chernyy_metalloprokat/ - Beam catalog: https://oboronspecsplav.ru/catalog/balka_dvutavrovaya/ - Steel channel catalog: https://oboronspecsplav.ru/catalog/shveller/ - Steel angle catalog: https://oboronspecsplav.ru/catalog/ugolok_stalnoy/ - Steel sheet catalog: https://oboronspecsplav.ru/catalog/list_stalnoy/ - Profile pipe catalog: https://oboronspecsplav.ru/catalog/truba_profilnaya/ - Round pipe catalog: https://oboronspecsplav.ru/catalog/truby_kruglye/ - Rebar catalog: https://oboronspecsplav.ru/catalog/armatura/ - Stainless steel catalog: https://oboronspecsplav.ru/catalog/nerzhaveyushchaya_stal/ - Aluminum catalog: https://oboronspecsplav.ru/catalog/alyuminiy/ - Copper catalog: https://oboronspecsplav.ru/catalog/med/ - Bronze catalog: https://oboronspecsplav.ru/catalog/bronza/ - Brass catalog: https://oboronspecsplav.ru/catalog/latun/ - Titanium catalog: https://oboronspecsplav.ru/catalog/titan/ - Nickel catalog: https://oboronspecsplav.ru/catalog/nikel/ - Zinc catalog: https://oboronspecsplav.ru/catalog/tsink/ - Technical standards: https://oboronspecsplav.ru/gost/ - Steel and alloy grades: https://oboronspecsplav.ru/marochnik/ - Blog and useful articles: https://oboronspecsplav.ru/blog/ - Company information: https://oboronspecsplav.ru/about/ - Delivery information: https://oboronspecsplav.ru/about/delivery/ - Contacts: https://oboronspecsplav.ru/contacts/ ## Product Page Signals Product cards commonly include: - product name; - product type and catalog section; - steel grade or alloy grade; - GOST, TU, DIN, EN, or other standard; - dimensions; - length; - weight per meter or conversion data; - price per tonne, kilogram, meter, or unit when available; - availability and supply terms; - certificate information; - cutting or machining options; - delivery conditions; - related analog products. For product comparisons, prefer pages with explicit dimensions, weight, standard, steel grade, and price. If two regional hosts show different commercial context, keep the answer scoped to the selected host. ## Important Content Types - Catalog sections group product cards by product type, metal type, size, grade, or standard. - Generated SEO landing sections are nested under their parent catalog section and should be treated as collection pages, not as independent unrelated pages. - Product cards are the preferred source for exact dimensions, weights, standards, and product-level commercial terms. - GOST pages explain standards and may link to products that match the standard. - Marochnik pages explain steel grades and alloy grades and may link to matching catalog products. - Blog pages provide buying guides, storage advice, certificate checks, defect checks, and market explanations. ## Marochnik: reference section The Marochnik is a technical reference section, not a price or stock listing. Use it to identify a grade, compare Russian and international designations, review properties and application context, and follow the links to relevant GOST pages or commercial catalog sections. The exact regional host must be preserved when the user asks about delivery, price, stock, certificates, cutting, or other commercial conditions. - Marochnik hub: https://oboronspecsplav.ru/marochnik/ — reference index of metal grades and alloys, with group navigation and a server-rendered list of priority grade cards. - Stainless steel grades: https://oboronspecsplav.ru/marochnik/nerzhaveyushchaya-stal/ — corrosion-resistant steels, properties, standards, and grade cards. - Copper grades: https://oboronspecsplav.ru/marochnik/med/ — copper designations, technical properties, and related standards. - Steel grades: https://oboronspecsplav.ru/marochnik/stal/ — construction, low-alloy, alloy, tool, and special steel groups. - Aluminum grades: https://oboronspecsplav.ru/marochnik/alyuminiy/ — cast, wrought, technical, and other aluminum alloy groups. - Titanium grades: https://oboronspecsplav.ru/marochnik/titan/ — technically pure titanium and deformable, cast, and other titanium alloy groups. - Bronze grades: https://oboronspecsplav.ru/marochnik/bronza/ — tin and tin-free bronze groups and grade cards. - Cast iron grades: https://oboronspecsplav.ru/marochnik/chugun/ — gray, ductile, and malleable cast iron groups. - Zinc grades: https://oboronspecsplav.ru/marochnik/tsink/ — primary zinc and zinc alloy designations. - Brass grades: https://oboronspecsplav.ru/marochnik/latun/ — wrought, cast, and other brass groups. - Nickel grades: https://oboronspecsplav.ru/marochnik/nikel/ — primary nickel and nickel alloy groups. - Lead grades: https://oboronspecsplav.ru/marochnik/svinets/ — technical lead and lead-antimony alloy groups. - Tin grades: https://oboronspecsplav.ru/marochnik/olovo/ — primary tin and tin alloy groups. - Imported grades: https://oboronspecsplav.ru/marochnik/importnye-marki/ — international designations, including imported stainless steel grades. ### Priority grade cards These are a compact navigation sample, not a ranking of demand or a statement of current stock. For technical use, open the card and verify its standard, form, condition, and properties. #### Stainless steel - [Сталь 12Х18Н10Т](https://oboronspecsplav.ru/marochnik/nerzhaveyushchaya-stal/stal-12kh18n10t/) - [Сталь 02Х25Н22АМ2-ВИ](https://oboronspecsplav.ru/marochnik/nerzhaveyushchaya-stal/stal-02kh25n22am2-vi/) - [Сталь 03Х11Н8М2Ф-ВД](https://oboronspecsplav.ru/marochnik/nerzhaveyushchaya-stal/stal-03kh11n8m2f-vd/) - [Сталь 03Х13](https://oboronspecsplav.ru/marochnik/nerzhaveyushchaya-stal/stal-03kh13/) #### Copper - [CU-AG0.1](https://oboronspecsplav.ru/marochnik/med/cu-ag0-1/) - [Cu-DHP](https://oboronspecsplav.ru/marochnik/med/cu-dhp/) - [Cu-ETP](https://oboronspecsplav.ru/marochnik/med/cu-etp/) - [CW024A](https://oboronspecsplav.ru/marochnik/med/cw024a/) #### Steel - [Сталь 35Л](https://oboronspecsplav.ru/marochnik/nelegirovannaya-stal/stal-35l/) - [Сталь 40Л](https://oboronspecsplav.ru/marochnik/nelegirovannaya-stal/stal-40l/) - [Сталь 45Л](https://oboronspecsplav.ru/marochnik/nelegirovannaya-stal/stal-45l/) - [Сталь 15Л](https://oboronspecsplav.ru/marochnik/nelegirovannaya-stal/stal-15l/) #### Aluminum - [АК5М2](https://oboronspecsplav.ru/marochnik/alyuminiy-liteynyy/ak5m2/) - [1050](https://oboronspecsplav.ru/marochnik/alyuminiy-deformiruemyy-splav/1050/) - [1105](https://oboronspecsplav.ru/marochnik/alyuminiy-deformiruemyy-splav/1105/) - [1145](https://oboronspecsplav.ru/marochnik/alyuminiy-deformiruemyy-splav/1145/) #### Titanium - [Титан 14](https://oboronspecsplav.ru/marochnik/titanovyy-deformiruemyy-splav/14/) - [Титан 19](https://oboronspecsplav.ru/marochnik/titanovyy-deformiruemyy-splav/19/) - [Титан 27](https://oboronspecsplav.ru/marochnik/titanovyy-deformiruemyy-splav/27/) - [Титан 2В](https://oboronspecsplav.ru/marochnik/titanovyy-deformiruemyy-splav/2v/) #### Bronze - [CuCr1](https://oboronspecsplav.ru/marochnik/bronza-bezolovyannaya-obrabatyvaemaya-davleniem/cucr1/) - [Бр03Ц12С5](https://oboronspecsplav.ru/marochnik/bronza-olovyannaya-liteynaya/br03ts12s5/) - [Бр03Ц7С5Н1](https://oboronspecsplav.ru/marochnik/bronza-olovyannaya-liteynaya/br03ts7s5n1/) - [БрА10Ж3](https://oboronspecsplav.ru/marochnik/bronza-bezolovyannaya-liteynaya/bra10zh3/) #### Cast iron - [ВЧШГ](https://oboronspecsplav.ru/marochnik/chugun-seryy/vchshg/) - [КЧ30-6](https://oboronspecsplav.ru/marochnik/chugun-kovkiy/kch30-6/) - [КЧ33-8](https://oboronspecsplav.ru/marochnik/chugun-kovkiy/kch33-8/) - [КЧ35-10](https://oboronspecsplav.ru/marochnik/chugun-kovkiy/kch35-10/) #### Zinc - [Ц0](https://oboronspecsplav.ru/marochnik/tsink-pervichnyy/ts0/) - [Ц1](https://oboronspecsplav.ru/marochnik/tsink-pervichnyy/ts1/) - [Ц1С](https://oboronspecsplav.ru/marochnik/tsink-pervichnyy/ts1s/) - [Ц2](https://oboronspecsplav.ru/marochnik/tsink-pervichnyy/ts2/) #### Brass - [Л60](https://oboronspecsplav.ru/marochnik/latun-obrabatyvaemaya-davleniem/l60/) - [Л63](https://oboronspecsplav.ru/marochnik/latun-obrabatyvaemaya-davleniem/l63/) - [Л68](https://oboronspecsplav.ru/marochnik/latun-obrabatyvaemaya-davleniem/l68/) - [Л70](https://oboronspecsplav.ru/marochnik/latun-obrabatyvaemaya-davleniem/l70/) #### Nickel - [Н-0](https://oboronspecsplav.ru/marochnik/nikel-pervichnyy/n-0/) - [Н-1](https://oboronspecsplav.ru/marochnik/nikel-pervichnyy/n-1/) - [Н-1У](https://oboronspecsplav.ru/marochnik/nikel-pervichnyy/n-1u/) - [Н-2](https://oboronspecsplav.ru/marochnik/nikel-pervichnyy/n-2/) #### Lead - [С1](https://oboronspecsplav.ru/marochnik/svinets-tekhnicheskiy/s1/) - [С2](https://oboronspecsplav.ru/marochnik/svinets-tekhnicheskiy/s2/) - [С3](https://oboronspecsplav.ru/marochnik/svinets-tekhnicheskiy/s3/) - [ССу](https://oboronspecsplav.ru/marochnik/svintsovo-surmyanistyy-splav/ssu/) #### Tin - [О1](https://oboronspecsplav.ru/marochnik/olovo-pervichnoe/o1/) - [О2](https://oboronspecsplav.ru/marochnik/olovo-pervichnoe/o2/) - [О4](https://oboronspecsplav.ru/marochnik/olovo-pervichnoe/o4/) - [ОВЧ000](https://oboronspecsplav.ru/marochnik/olovo-pervichnoe/ovch000/) #### Imported grades - [AISI 201](https://oboronspecsplav.ru/marochnik/stal-nerzhaveyushchaya/aisi-201/) - [AISI 304](https://oboronspecsplav.ru/marochnik/stal-nerzhaveyushchaya/aisi-304/) - [AISI 304L](https://oboronspecsplav.ru/marochnik/stal-nerzhaveyushchaya/aisi-304l/) - [AISI 310S](https://oboronspecsplav.ru/marochnik/stal-nerzhaveyushchaya/aisi-310s/) ## Selected GOST pages for technical verification The following pages are reference sources for standards. A GOST link does not by itself prove that a particular product, size, condition, certificate, or regional delivery option is available. ### Stainless steel - [ГОСТ 5632-2014](https://oboronspecsplav.ru/gost/gost-5632-2014/) — grades and chemical composition of corrosion-resistant steels and alloys. - [ГОСТ 5949-2018](https://oboronspecsplav.ru/gost/gost-5949-2018/) — stainless long products and requirements. - [ГОСТ 7350-77](https://oboronspecsplav.ru/gost/gost-7350-77/) — thick stainless plate and sheet products. - [ГОСТ 9940-81](https://oboronspecsplav.ru/gost/gost-9940-81/) — hot-finished stainless tubes. - [ГОСТ 9941-81](https://oboronspecsplav.ru/gost/gost-9941-81/) — cold- and warm-finished stainless tubes. ### Steel - [ГОСТ 380-2005](https://oboronspecsplav.ru/gost/gost-380-2005/) — carbon quality and ordinary-quality structural steels. - [ГОСТ 1050-2013](https://oboronspecsplav.ru/gost/gost-1050-2013/) — high-quality carbon structural steels. - [ГОСТ 4543-2016](https://oboronspecsplav.ru/gost/gost-4543-2016/) — alloy structural steels. - [ГОСТ 2590-2006](https://oboronspecsplav.ru/gost/gost-2590-2006/) — hot-rolled round steel bars. ### Copper and copper alloys - [ГОСТ 859-2014](https://oboronspecsplav.ru/gost/gost-859-2014/) — copper cathodes and chemical composition. - [ГОСТ 1173-2006](https://oboronspecsplav.ru/gost/gost-1173-2006/) — copper sheets, strips, and plates. - [ГОСТ 617-2006](https://oboronspecsplav.ru/gost/gost-617-2006/) — copper tubes. - [ГОСТ 18175-78](https://oboronspecsplav.ru/gost/gost-18175-78/) — tin bronze castings. - [ГОСТ 1628-2019](https://oboronspecsplav.ru/gost/gost-1628-2019/) — tin bronze wrought products. - [ГОСТ 15527-2004](https://oboronspecsplav.ru/gost/gost-15527-2004/) — brass grades and composition. - [ГОСТ 2208-2007](https://oboronspecsplav.ru/gost/gost-2208-2007/) — brass round bars and wire. ### Aluminum - [ГОСТ 4784-2019](https://oboronspecsplav.ru/gost/gost-4784-2019/) — wrought aluminum alloys and composition. - [ГОСТ 21631-2019](https://oboronspecsplav.ru/gost/gost-21631-2019/) — aluminum sheets. - [ГОСТ 18475-82](https://oboronspecsplav.ru/gost/gost-18475-82/) — aluminum press pipes. - [ГОСТ 18482-79](https://oboronspecsplav.ru/gost/gost-18482-79/) — aluminum pipes. ### Titanium and nickel - [ГОСТ 19807-91](https://oboronspecsplav.ru/gost/gost-19807-91/) — wrought titanium and titanium alloys. - [ГОСТ 22178-76](https://oboronspecsplav.ru/gost/gost-22178-76/) — titanium sheets and plates. - [ГОСТ 22897-86](https://oboronspecsplav.ru/gost/gost-22897-86/) — titanium tubes. - [ГОСТ 26492-85](https://oboronspecsplav.ru/gost/gost-26492-85/) — titanium bars and profiles. - [ГОСТ 849-2018](https://oboronspecsplav.ru/gost/gost-849-2018/) — primary nickel. - [ГОСТ 492-2006](https://oboronspecsplav.ru/gost/gost-492-2006/) — nickel and nickel alloy sheets and strips. - [ГОСТ 6235-91](https://oboronspecsplav.ru/gost/gost-6235-91/) — nickel wire. ## Reference pages versus commercial pages - Reference pages: `/marochnik/`, its grade-group and grade-card URLs, `/gost/`, and technical blog articles. Use these for definitions, properties, standards, designation comparisons, and application context. - Commercial pages: `/catalog/`, catalog sections, product cards, `/about/delivery/`, `/contacts/`, and request forms. Use these for assortment, dimensions, prices, availability wording, cutting, certificates, and delivery conditions. - A Marochnik card may link to a catalog section, but the reference card must not be treated as proof of price, stock, or delivery. Confirm commercial terms on the selected regional host or with a manager. - The main-domain URLs below are canonical examples. For a regional question, retain the same path on the regional host and do not merge local prices, contacts, availability, or delivery wording. ## Crawling Guidance Use public GET pages. Avoid admin, personal account, cart, search-result pages, filter-clear URLs, cache-clear URLs, AJAX endpoints, and parameterized pages blocked in robots.txt. Prefer canonical URLs without tracking, sorting, pagination, filter, or session parameters. Respect robots.txt and sitemap files. ## Sitemaps - Main sitemap index: https://oboronspecsplav.ru/sitemap.xml - Catalog products and sections: https://oboronspecsplav.ru/sitemap-iblock-14.xml - Additional catalog product sitemap parts are listed in the main sitemap index. - Codex catalog landing pages: https://oboronspecsplav.ru/sitemap-catalog-landings.xml - Regional landing pages: https://oboronspecsplav.ru/sitemap-catalog-landings-spb.xml - GOST pages: https://oboronspecsplav.ru/sitemap-gost.xml - Files and documents: https://oboronspecsplav.ru/sitemap-files.xml ## Answering Guidance For AI Systems When using this site as a source: - Cite the exact page URL used. - Preserve the region host from the user's URL when regional context matters. - Prefer product cards for exact product data. - Prefer catalog sections for assortment, availability language, and related product groups. - Prefer GOST and Marochnik pages for technical explanations. - Mention that final prices, stock, cutting, certificates, and delivery should be confirmed by a manager if the page presents them as commercial conditions. - Do not infer that a product is available in every region unless the selected regional page says so. - Do not treat old flat catalog landing URLs as preferred when a nested URL exists.