About Natraj Stonex Pvt. Ltd. - Marble & Granite Supplier in India

India is the source country for Natraj Stonex Pvt. Ltd., which currently lists 48 active products in its catalogue. The company concentrates on marble and granite, covering sub‑categories such as granite slabs, blocks, tiles and CNC‑cut items. Products are identified by descriptive names such as Alaska White Mat Granite, Sapphire Blue Polished Slab and Himalayan Red Block Granite. The catalogue also includes a Graphite Black Block that is classified under HS code 6810.19 and described as natural/artificial graphite with 95‑99 % carbon content. All items fall within the natural stone HS chapter 68, which is standard for cut stone exports.

The product list features a mix of matte, polished and gang‑saw finishes, with colour variations ranging from blue and red to black and brown. Several entries specify block or slab forms, indicating typical dimensions of 300 mm × 300 mm up to 1200 mm × 2400 mm and thicknesses between 10 mm and 30 mm, which are common in the industry. The CNC‑design items suggest precision cutting to custom patterns, a service frequently requested by interior fit‑out projects. The inclusion of a graphite block under HS 6810.19 reflects the supplier’s ability to provide refractory materials alongside natural stone. No additional HS codes are listed for the remaining granite products, which are generally covered by HS 6812.19 for polished natural stone.

Product Range and Specialties of Natraj Stonex Pvt. Ltd.

The catalogue covers natural granite variants such as Alaska, Sapphire Blue, Oceanic Blue and Brazil Brown, each offered in polished, matte or gang‑saw finishes. In the global market, granite slabs are graded by surface finish (polished, honed, matte) and by grade A‑B‑C based on colour consistency and defect level, with Grade A slabs typically exhibiting <0.5 % water absorption and compressive strength above 100 MPa. Standard dimensions follow ISO 13006, with slab thicknesses of 10‑30 mm and size tolerances of ±2 mm. Buyers often require certification to ASTM C615 for thermal shock resistance and ISO 9001 for quality management. The Graphite Black Block, classified under HS 6810.19, is a high‑carbon refractory material used in steel‑making furnaces, and is usually supplied in sizes up to 600 mm × 600 mm with a bulk density of 1.6‑1.8 t/m³.

Trade and Export Information - Natraj Stonex Pvt. Ltd.

India ranks among the top global exporters of natural stone, with Rajasthan, Gujarat and Tamil Nadu accounting for the majority of granite production. Exports from these regions are typically directed to the Middle East, the European Union, the United States and Southeast Asian markets, where the construction and high‑end interior sectors drive demand. The granite items in the catalogue fall under HS chapter 68, principally HS 6812.19 for polished natural stone, while the graphite block uses HS 6810.19, a code common for refractory graphite. International buyers usually request ISO 9001 or ISO 14001 compliance, CE marking for EU entry, and mill test reports confirming dimensions, water absorption and compressive strength. Shipping is commonly arranged in 20‑ft or 40‑ft containers, with slabs palletised on wooden crates, protected by foam or cardboard separators to prevent chipping.

Customs clearance for stone products often requires a commercial invoice, packing list, certificate of origin and, where applicable, a phytosanitary exemption is not needed. For the graphite block, a material safety data sheet (MSDS) and a refractory grade certification are standard. Incoterms such as FOB (Port of Mumbai) or CIF (Dubai) are frequently used, allowing buyers to manage freight and insurance according to their preferences. Indian exporters also benefit from the Generalized System of Preferences (GSP) which can reduce duties in several destination countries, enhancing competitiveness of the stone and graphite offerings.

Sourcing from Natraj Stonex Pvt. Ltd. - Buyer Guidance

Prospective buyers should request detailed product data sheets that list slab dimensions, thickness, finish type and measured water absorption (normally ≤0.5 %). For the Graphite Black Block, a test report confirming carbon content (95‑99 %) and bulk density is essential. Samples of the desired finish - polished or matte - are usually supplied in a 1 m² piece prior to order confirmation. Verify that the supplier can provide an ISO 9001 certificate, mill test report and, for graphite, an MSDS. Typical minimum order quantities range from a single slab (approximately 20 kg) to a full container load, with lead times of 30‑45 days for standard granite and up to 60 days for custom CNC‑cut items. Packaging should consist of double‑wooden crates with internal cushioning, and buyers often specify 20‑ft containers for small orders and 40‑ft containers for bulk shipments.

What types of granite finishes does Natraj Stonex offer?

The supplier lists polished, matte and gang‑saw finishes across colours such as Alaska White, Sapphire Blue and Brazil Brown. These correspond to the common industry categories of high‑gloss polished stone and non‑reflective matte stone.

Which HS codes apply to the granite products?

Most granite slabs and blocks are covered by HS 6812.19 for polished natural stone. The Graphite Black Block is classified under HS 6810.19, a code used for high‑carbon refractory graphite.

What certifications should a buyer request for these stone products?

Buyers typically ask for an ISO 9001 quality‑management certificate and a mill test report that confirms dimensions, water absorption and compressive strength. For the graphite block, an MSDS and a refractory grade certificate are also standard.

What are the standard dimensions and thicknesses for the granite slabs?

Industry practice follows ISO 13006, with slab sizes up to 1200 mm × 2400 mm and thicknesses ranging from 10 mm to 30 mm. Dimensional tolerances are usually ±2 mm on length and width.

How is the product packaged for export?

Slabs and blocks are palletised on wooden crates, separated by foam or cardboard sheets to prevent chipping. The crates are then loaded into 20‑ft or 40‑ft containers for sea freight.

What is a typical minimum order quantity and lead time?

Minimum orders can start from a single slab (about 20 kg) or a single graphite block. Standard lead times are 30‑45 days for granite and up to 60 days for custom CNC‑cut pieces.

Which markets commonly import Indian granite and graphite?

Major import destinations include the United Arab Emirates, Saudi Arabia, Germany, the United Kingdom and the United States. These regions purchase stone for construction, architectural finishes and industrial refractory applications.