About Changsha Langfeng Metallic Material Co., Ltd. - Chemicals & Allied Products Supplier in China

Changsha Langfeng Metallic Material Co., Ltd. is based in Changsha, China and is listed as an imported supplier. The catalogue currently contains seven distinct products spanning chemicals, carbide powders and alloy materials. The company is classified under the categories Chemicals & Allied Products, Steel Rods and Other Ores & Minerals, reflecting a focus on high‑performance refractory and alloy commodities. The active product count of seven includes both powder forms and solid rod or alloy items, each associated with specific HS‑code families where applicable. The supplier’s tier is recorded as “harbor”, indicating a moderate level of verification within the platform’s trust framework.

The product list comprises Hafnium Carbide Powder (Hfc), Molybdenum Carbide Powder, TiC Cermet Rod for High Manganese Steel (HS 3824.30, titanium carbide content 20‑35 %), Zrc Carbide Powder, Compound Carbide Powder (HS 3824.99, a (Ti,Ta)C and (W,Ta)C55 mixture), Electrodes Battery and Hammer Head Alloy (HS 7202.99, a high‑chromium ferroalloy/cast‑iron alloy). These items fall under HS chapter 38 for organic chemicals and related products and HS chapter 72 for iron and steel articles, matching the catalogue’s material descriptions.

Product Range and Specialties of Changsha Langfeng Metallic Material Co., Ltd.

The catalogue’s carbide powders - Hafnium Carbide, Molybdenum Carbide, Zrc Carbide and the Compound Carbide blend - are typical refractory materials used in high‑temperature tooling, wear‑resistant coatings and advanced ceramics. Industry standards often require purity levels of 99.5 % or higher and particle size distributions specified in microns (e.g., < 45 µm). The TiC Cermet Rod is supplied as a composite rod with a titanium carbide phase ranging from 20 % to 35 %, a common specification for cermets that provide hardness and oxidation resistance in high‑manganese steel applications. Hammer Head Alloy, described as a high‑chromium ferroalloy or cast‑iron alloy, is normally produced with chromium contents of 20‑30 % to achieve wear resistance for mining and construction tools. Typical form factors include 20 ft or 40 ft containers with drums or bulk bags, and the cermet rods are often shipped in wooden crates to protect the geometry.

Trade and Export Information - Changsha Langfeng Metallic Material Co., Ltd.

China is a major exporter of refractory carbides and alloy materials, with buyers in automotive, aerospace, metal‑cutting and mining sectors regularly importing HS 3824 and HS 7202 commodities. Export shipments of carbide powders usually require compliance with REACH and may be subject to destination‑country import permits for hazardous materials. Common certifications requested by importers include ISO 9001 quality management, material test certificates (MTC) and, where applicable, compliance with ASTM C633 for cermet hardness. Hammer Head Alloy shipments under HS 7202.99 are typically classified as “other iron or steel articles” and may need to meet ASTM A48 or equivalent casting standards. Logistics for these products often involve sealed steel drums for powders and wooden crates for rods, with common Incoterms such as FOB Shanghai or CIF Hong Kong, and container loads of 15‑20 metric tonnes for powders and up to 10 tonnes for alloy ingots.

Sourcing from Changsha Langfeng Metallic Material Co., Ltd. - Buyer Guidance

When sourcing from this supplier, buyers should request a recent Material Test Certificate that details purity, particle size distribution for powders and chemical composition for the alloy. For the TiC Cermet Rod, a hardness test result (e.g., Vickers HV ≥ 1500) and dimensional tolerance sheet are standard verification documents. Buyers are advised to confirm the packaging type - drums for powders, crates for rods - and to verify that the shipment complies with any hazardous material handling regulations in the destination country. Typical minimum order quantities range from 500 kg for powders to one metric tonne for alloy rods, with lead times of 30‑45 days after order confirmation, subject to production scheduling.

What HS codes are associated with the products offered by Changsha Langfeng Metallic Material Co., Ltd.?

The TiC Cermet Rod is listed under HS 3824.30, the Compound Carbide Powder under HS 3824.99, and the Hammer Head Alloy under HS 7202.99. Other powders and the battery electrodes are classified within HS chapter 38 but no specific sub‑code is provided in the catalogue.

Which purity or composition specifications are typical for the carbide powders?

Industry practice for refractory carbides such as Hafnium, Molybdenum or Zrc powders is a minimum chemical purity of 99.5 % and a particle size below 45 µm, unless a finer grade is requested. Buyers should verify these parameters on the supplier’s test report.

What mechanical properties are expected for the TiC Cermet Rod?

Cermet rods for high‑manganese steel generally target a Vickers hardness of 1500 HV or higher and a TiC phase content between 20 % and 35 % as stated in the catalogue. Dimensional tolerances are typically ±0.2 mm for diameter.

Are there any standard certifications importers should request for these materials?

Importers normally require ISO 9001 certification for the manufacturing system, material test certificates for each batch, and compliance documents such as REACH or RoHS where applicable. Specific certifications are not listed by the supplier, so they should be requested directly.

What packaging formats are used for the powder products?

Carbide powders are commonly shipped in sealed steel drums or multi‑layered polyethylene bags within a wooden crate to prevent moisture ingress. The exact packaging can be confirmed with the supplier before order placement.

What is the typical lead time and minimum order quantity for the Hammer Head Alloy?

Lead times for the high‑chromium ferroalloy are usually 30‑45 days after order confirmation. Minimum order quantities are often around one metric tonne, but the exact figure should be verified with the supplier based on the required alloy grade.

How can a buyer request a sample or technical data for these products?

Buyers should contact the supplier through the platform’s messaging system, specifying the product name and requesting a sample batch along with the latest material test report, safety data sheet and any applicable certification copies.