/** * REST API: WP_REST_Post_Types_Controller class * * @package WordPress * @subpackage REST_API * @since 4.7.0 */ /** * Core class to access post types via the REST API. * * @since 4.7.0 * * @see WP_REST_Controller */ class WP_REST_Post_Types_Controller extends WP_REST_Controller { /** * Constructor. * * @since 4.7.0 */ public function __construct() { $this->namespace = 'wp/v2'; $this->rest_base = 'types'; } /** * Registers the routes for post types. * * @since 4.7.0 * * @see register_rest_route() */ public function register_routes() { register_rest_route( $this->namespace, '/' . $this->rest_base, array( array( 'methods' => WP_REST_Server::READABLE, 'callback' => array( $this, 'get_items' ), 'permission_callback' => array( $this, 'get_items_permissions_check' ), 'args' => $this->get_collection_params(), ), 'schema' => array( $this, 'get_public_item_schema' ), ) ); register_rest_route( $this->namespace, '/' . $this->rest_base . '/(?P[\w-]+)', array( 'args' => array( 'type' => array( 'description' => __( 'An alphanumeric identifier for the post type.' ), 'type' => 'string', ), ), array( 'methods' => WP_REST_Server::READABLE, 'callback' => array( $this, 'get_item' ), 'permission_callback' => '__return_true', 'args' => array( 'context' => $this->get_context_param( array( 'default' => 'view' ) ), ), ), 'schema' => array( $this, 'get_public_item_schema' ), ) ); } /** * Checks whether a given request has permission to read types. * * @since 4.7.0 * * @param WP_REST_Request $request Full details about the request. * @return true|WP_Error True if the request has read access, WP_Error object otherwise. */ public function get_items_permissions_check( $request ) { if ( 'edit' === $request['context'] ) { $types = get_post_types( array( 'show_in_rest' => true ), 'objects' ); foreach ( $types as $type ) { if ( current_user_can( $type->cap->edit_posts ) ) { return true; } } return new WP_Error( 'rest_cannot_view', __( 'Sorry, you are not allowed to edit posts in this post type.' ), array( 'status' => rest_authorization_required_code() ) ); } return true; } /** * Retrieves all public post types. * * @since 4.7.0 * * @param WP_REST_Request $request Full details about the request. * @return WP_REST_Response|WP_Error Response object on success, or WP_Error object on failure. */ public function get_items( $request ) { if ( $request->is_method( 'HEAD' ) ) { // Return early as this handler doesn't add any response headers. return new WP_REST_Response( array() ); } $data = array(); $types = get_post_types( array( 'show_in_rest' => true ), 'objects' ); foreach ( $types as $type ) { if ( 'edit' === $request['context'] && ! current_user_can( $type->cap->edit_posts ) ) { continue; } $post_type = $this->prepare_item_for_response( $type, $request ); $data[ $type->name ] = $this->prepare_response_for_collection( $post_type ); } return rest_ensure_response( $data ); } /** * Retrieves a specific post type. * * @since 4.7.0 * * @param WP_REST_Request $request Full details about the request. * @return WP_REST_Response|WP_Error Response object on success, or WP_Error object on failure. */ public function get_item( $request ) { $obj = get_post_type_object( $request['type'] ); if ( empty( $obj ) ) { return new WP_Error( 'rest_type_invalid', __( 'Invalid post type.' ), array( 'status' => 404 ) ); } if ( empty( $obj->show_in_rest ) ) { return new WP_Error( 'rest_cannot_read_type', __( 'Cannot view post type.' ), array( 'status' => rest_authorization_required_code() ) ); } if ( 'edit' === $request['context'] && ! current_user_can( $obj->cap->edit_posts ) ) { return new WP_Error( 'rest_forbidden_context', __( 'Sorry, you are not allowed to edit posts in this post type.' ), array( 'status' => rest_authorization_required_code() ) ); } $data = $this->prepare_item_for_response( $obj, $request ); return rest_ensure_response( $data ); } /** * Prepares a post type object for serialization. * * @since 4.7.0 * @since 5.9.0 Renamed `$post_type` to `$item` to match parent class for PHP 8 named parameter support. * * @param WP_Post_Type $item Post type object. * @param WP_REST_Request $request Full details about the request. * @return WP_REST_Response Response object. */ public function prepare_item_for_response( $item, $request ) { // Restores the more descriptive, specific name for use within this method. $post_type = $item; // Don't prepare the response body for HEAD requests. if ( $request->is_method( 'HEAD' ) ) { /** This filter is documented in wp-includes/rest-api/endpoints/class-wp-rest-post-types-controller.php */ return apply_filters( 'rest_prepare_post_type', new WP_REST_Response( array() ), $post_type, $request ); } $taxonomies = wp_list_filter( get_object_taxonomies( $post_type->name, 'objects' ), array( 'show_in_rest' => true ) ); $taxonomies = wp_list_pluck( $taxonomies, 'name' ); $base = ! empty( $post_type->rest_base ) ? $post_type->rest_base : $post_type->name; $namespace = ! empty( $post_type->rest_namespace ) ? $post_type->rest_namespace : 'wp/v2'; $supports = get_all_post_type_supports( $post_type->name ); $fields = $this->get_fields_for_response( $request ); $data = array(); if ( rest_is_field_included( 'capabilities', $fields ) ) { $data['capabilities'] = $post_type->cap; } if ( rest_is_field_included( 'description', $fields ) ) { $data['description'] = $post_type->description; } if ( rest_is_field_included( 'hierarchical', $fields ) ) { $data['hierarchical'] = $post_type->hierarchical; } if ( rest_is_field_included( 'has_archive', $fields ) ) { $data['has_archive'] = $post_type->has_archive; } if ( rest_is_field_included( 'visibility', $fields ) ) { $data['visibility'] = array( 'show_in_nav_menus' => (bool) $post_type->show_in_nav_menus, 'show_ui' => (bool) $post_type->show_ui, ); } if ( rest_is_field_included( 'viewable', $fields ) ) { $data['viewable'] = is_post_type_viewable( $post_type ); } if ( rest_is_field_included( 'labels', $fields ) ) { $data['labels'] = $post_type->labels; } if ( rest_is_field_included( 'name', $fields ) ) { $data['name'] = $post_type->label; } if ( rest_is_field_included( 'slug', $fields ) ) { $data['slug'] = $post_type->name; } if ( rest_is_field_included( 'icon', $fields ) ) { $data['icon'] = $post_type->menu_icon; } if ( rest_is_field_included( 'supports', $fields ) ) { $data['supports'] = $supports; } if ( rest_is_field_included( 'taxonomies', $fields ) ) { $data['taxonomies'] = array_values( $taxonomies ); } if ( rest_is_field_included( 'rest_base', $fields ) ) { $data['rest_base'] = $base; } if ( rest_is_field_included( 'rest_namespace', $fields ) ) { $data['rest_namespace'] = $namespace; } if ( rest_is_field_included( 'template', $fields ) ) { $data['template'] = $post_type->template ?? array(); } if ( rest_is_field_included( 'template_lock', $fields ) ) { $data['template_lock'] = ! empty( $post_type->template_lock ) ? $post_type->template_lock : false; } $context = ! empty( $request['context'] ) ? $request['context'] : 'view'; $data = $this->add_additional_fields_to_object( $data, $request ); $data = $this->filter_response_by_context( $data, $context ); // Wrap the data in a response object. $response = rest_ensure_response( $data ); if ( rest_is_field_included( '_links', $fields ) || rest_is_field_included( '_embedded', $fields ) ) { $response->add_links( $this->prepare_links( $post_type ) ); } /** * Filters a post type returned from the REST API. * * Allows modification of the post type data right before it is returned. * * @since 4.7.0 * * @param WP_REST_Response $response The response object. * @param WP_Post_Type $post_type The original post type object. * @param WP_REST_Request $request Request used to generate the response. */ return apply_filters( 'rest_prepare_post_type', $response, $post_type, $request ); } /** * Prepares links for the request. * * @since 6.1.0 * * @param WP_Post_Type $post_type The post type. * @return array Links for the given post type. */ protected function prepare_links( $post_type ) { return array( 'collection' => array( 'href' => rest_url( sprintf( '%s/%s', $this->namespace, $this->rest_base ) ), ), 'https://api.w.org/items' => array( 'href' => rest_url( rest_get_route_for_post_type_items( $post_type->name ) ), ), ); } /** * Retrieves the post type's schema, conforming to JSON Schema. * * @since 4.7.0 * @since 4.8.0 The `supports` property was added. * @since 5.9.0 The `visibility` and `rest_namespace` properties were added. * @since 6.1.0 The `icon` property was added. * * @return array Item schema data. */ public function get_item_schema() { if ( $this->schema ) { return $this->add_additional_fields_schema( $this->schema ); } $schema = array( '$schema' => 'http://json-schema.org/draft-04/schema#', 'title' => 'type', 'type' => 'object', 'properties' => array( 'capabilities' => array( 'description' => __( 'All capabilities used by the post type.' ), 'type' => 'object', 'context' => array( 'edit' ), 'readonly' => true, ), 'description' => array( 'description' => __( 'A human-readable description of the post type.' ), 'type' => 'string', 'context' => array( 'view', 'edit' ), 'readonly' => true, ), 'hierarchical' => array( 'description' => __( 'Whether or not the post type should have children.' ), 'type' => 'boolean', 'context' => array( 'view', 'edit' ), 'readonly' => true, ), 'viewable' => array( 'description' => __( 'Whether or not the post type can be viewed.' ), 'type' => 'boolean', 'context' => array( 'edit' ), 'readonly' => true, ), 'labels' => array( 'description' => __( 'Human-readable labels for the post type for various contexts.' ), 'type' => 'object', 'context' => array( 'edit' ), 'readonly' => true, ), 'name' => array( 'description' => __( 'The title for the post type.' ), 'type' => 'string', 'context' => array( 'view', 'edit', 'embed' ), 'readonly' => true, ), 'slug' => array( 'description' => __( 'An alphanumeric identifier for the post type.' ), 'type' => 'string', 'context' => array( 'view', 'edit', 'embed' ), 'readonly' => true, ), 'supports' => array( 'description' => __( 'All features, supported by the post type.' ), 'type' => 'object', 'context' => array( 'edit' ), 'readonly' => true, ), 'has_archive' => array( 'description' => __( 'If the value is a string, the value will be used as the archive slug. If the value is false the post type has no archive.' ), 'type' => array( 'string', 'boolean' ), 'context' => array( 'view', 'edit' ), 'readonly' => true, ), 'taxonomies' => array( 'description' => __( 'Taxonomies associated with post type.' ), 'type' => 'array', 'items' => array( 'type' => 'string', ), 'context' => array( 'view', 'edit' ), 'readonly' => true, ), 'rest_base' => array( 'description' => __( 'REST base route for the post type.' ), 'type' => 'string', 'context' => array( 'view', 'edit', 'embed' ), 'readonly' => true, ), 'rest_namespace' => array( 'description' => __( 'REST route\'s namespace for the post type.' ), 'type' => 'string', 'context' => array( 'view', 'edit', 'embed' ), 'readonly' => true, ), 'visibility' => array( 'description' => __( 'The visibility settings for the post type.' ), 'type' => 'object', 'context' => array( 'edit' ), 'readonly' => true, 'properties' => array( 'show_ui' => array( 'description' => __( 'Whether to generate a default UI for managing this post type.' ), 'type' => 'boolean', ), 'show_in_nav_menus' => array( 'description' => __( 'Whether to make the post type available for selection in navigation menus.' ), 'type' => 'boolean', ), ), ), 'icon' => array( 'description' => __( 'The icon for the post type.' ), 'type' => array( 'string', 'null' ), 'context' => array( 'view', 'edit', 'embed' ), 'readonly' => true, ), 'template' => array( 'type' => array( 'array' ), 'description' => __( 'The block template associated with the post type.' ), 'readonly' => true, 'context' => array( 'view', 'edit', 'embed' ), ), 'template_lock' => array( 'type' => array( 'string', 'boolean' ), 'enum' => array( 'all', 'insert', 'contentOnly', false ), 'description' => __( 'The template_lock associated with the post type, or false if none.' ), 'readonly' => true, 'context' => array( 'view', 'edit', 'embed' ), ), ), ); $this->schema = $schema; return $this->add_additional_fields_schema( $this->schema ); } /** * Retrieves the query params for collections. * * @since 4.7.0 * * @return array Collection parameters. */ public function get_collection_params() { return array( 'context' => $this->get_context_param( array( 'default' => 'view' ) ), ); } } Product - Nagarjuna TMT

Made In India. Made To Last.

Quality & consistency that every foundation can trust.

NAGARJUNA Fe 550 TMT

The Fe 550 TMT bars manufactured at the fully automated plant of Nagarjuna Steels meet the highest international standards of weldability, ductility and bendability. The superior chemical, physical and mechanical properties of Nagarjuna TMT bars make them ideal for building shock and earthquake-prone structures. The incredible dealer network across South India and the certified standards of quality (ISO 9001-2008) make Nagarjuna TMT the obvious choice for building a stronger and long-lasting tomorrow.

Highlights

Quality Objectives

Our Quality Assurance Standards

Quality has always been an essential part of Nagarjuna Steels’ DNA. Every product manufactured here goes through a strict set of procedures before being exhaustively tested to ensure that they meet international standards and customer specifications. The manufacturing process is constantly reviewed and upgraded to deliver the highest levels of efficiency and productivity.

Key Features Of Nagarjuna TMT Bars

Nagarjuna TMT’s unique chemical composition gives it higher yield strength (580 N/mm2) and tensile strength (620 N/mm2)
While TMT bars are usually highly resistant to corrosion and thermal exposure, the ones made by Nagarjuna Steels also provide high resistance to rusting and greater longevity. This makes them the obvious choice for building long-lasting and solid structures.
Nagarjuna TMT’s excellent flexibility, bendability and elongation properties make them ideal for a wide range of construction purposes. This versatility is what makes it perfect for every use.

Manufacturing Process

MELTING & REFINING

01

The raw material for our steel bars is processed in our in-house induction furnaces. Once the raw material has been melted inside the furnace, the molten metal is separated from the slag.

At this point, we purge the molten product inside a ladle furnace to achieve the desired chemical composition. During this process, we add micro-alloying materials to fix the inherent chemistry of the molten metal. At this stage, excessive non-metallic inclusions are removed from the mix. It is crucial to maintain the chemical composition in order to achieve weldability, ductility, strength and elongation during the rolling process. We keep an eye on the chemical composition with the help of our high-end spectrometer.
Molten metal from the ladle refining furnace is poured into a nearby tundish, which then pours the liquid into a mould located underneath. This process is used to cast a predetermined length of metal, transforming the molten metal mix into a solidified form. New molten metal is continuously supplied to the mould at a precise rate to keep up with the solidifying process.

Our advanced continuous casting machine helps in achieving improved yield, cost efficiency, productivity, and quality.

02

CONTINUOUS CASTING

CONTINUOUS CASTING

02

Molten metal from the ladle refining furnace is poured into a nearby tundish, which then pours the liquid into a mould located underneath. This process is used to cast a predetermined length of metal, transforming the molten metal mix into a solidified form. New molten metal is continuously supplied to the mould at a precise rate to keep up with the solidifying process.

Our advanced continuous casting machine helps in achieving improved yield, cost efficiency, productivity, and quality.

SECONDARY COOLING & HOT CHARGING

03

Once the solidifying billets exit the continuous casting machine, they enter a secondary cooling chamber. Here, the semi-finished billets are sprayed with water to achieve complete solidification. This process is important for maintaining the shape of the solidified billets, improving their quality in the long run.

Next, the solidified metal strands are reheated again in our reheating furnace. This is done to recrystallize the metal, improving quality and reducing material losses. The recrystallization process is very important because the metal strands can then be processed in the rolling mill without destroying the bonding.

ROLLING MILL

04

The recrystallized metal billets are transported to a cutting-edge rolling mill using conveyors. Here, they are processed using the internationally accepted roll pass design, which makes for higher strength and elongation. This fully automatic process ensures a greater degree of uniformity throughout the length of each bar.

Our state-of-the-art rolling mill technology comprises a roughing mill of two 18” stands, four intermediate mills, four pre-finishing mills, and a finishing mill of six 12” stands. All the stands have individual DC motors to maintain total automation.
The recrystallized metal billets are transported to a cutting-edge rolling mill using conveyors. Here, they are processed using the internationally accepted roll pass design, which makes for higher strength and elongation. This fully automatic process ensures a greater degree of uniformity throughout the length of each bar.

Our state-of-the-art rolling mill technology comprises a roughing mill of two 18” stands, four intermediate mills, four pre-finishing mills, and a finishing mill of six 12” stands. All the stands have individual DC motors to maintain total automation.

04

ROLLING MILL

QUENCHING & SELF- TEMPERING

05

After the steel rebars leave the finishing mill with the desired size, they enter a water cooling chamber where they’re subjected to a quenching process. We have an Evcon Turbo machine which employs a unique method for quenching and self-tempering the ribbed steel bars. This treatment is completed in 3 successive stages:

● As soon as the steel rebars leave the final mill stand, they are rapidly cooled to ensure surface hardening.
● Once the quenching operation is completed, the surface layer of each bar undergoes a tempering process with the help of the residual heat left in its core.
● The third stage takes place when the steel bars lie on a cooling bed, where they are subjected to rapid air cooling.
Due to this extensive process, each of our steel bars have greater strength, ductility, bendability and weldability.

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