About Qingdao Tennry Carbon Co., Ltd - Industrial Heaters, Burners, Furnaces & Ovens Supplier in China

Qingdao Tennry Carbon Co., Ltd is located in China and currently lists five active products. The catalogue is organized under three top categories - Industrial Heaters, Burners, Furnaces & Ovens; Non‑Metallic Elements; and Industrial Chemicals. Within the product list the supplier offers three grades of graphite electrode - RP, Hp and UHP - together with two carbon additives described as low‑sulphur and high‑carbon. These product titles correspond to standard carbon materials used in high‑temperature industrial processes.

The three graphite electrode grades align with the common industry classifications of regular‑grade (RP), high‑purity (Hp) and ultra‑high‑purity (UHP) electrodes, which differ mainly in impurity limits and electrical conductivity. The low‑sulphur carbon additive is typically used where sulphur must be kept below 0.01 % by weight, while the high‑carbon additive targets carbon contents above 95 %. No further specifications such as dimensions, purity percentages or packaging details are provided in the source data.

Product Range and Specialties of Qingdao Tennry Carbon Co., Ltd

The catalogue’s graphite electrodes - RP, Hp and UHP - match the usual grade hierarchy employed by steel and aluminium producers. RP electrodes are generally rated for currents up to 5 kA and contain carbon purity of 99.5 % with sulphur below 0.03 %. Hp electrodes are specified for 5 - 10 kA, with impurity limits tighter (sulphur ≤0.02 %, ash ≤0.15 %). UHP electrodes are used at currents above 10 kA and often meet ASTM A997 requirements of ≥99.95 % carbon and sulphur ≤0.01 %. The low‑sulphur carbon additive is typically supplied in powder or granule form with sulphur content ≤0.01 % and moisture below 0.5 %. The high‑carbon additive is usually ≥95 % carbon, low ash, and is sized for bulk handling in bags or bulk silos. Buyers in the steelmaking, aluminium smelting and foundry sectors commonly request these grades to optimise furnace efficiency and product quality.

Trade and Export Information - Qingdao Tennry Carbon Co., Ltd

China is a major exporter of graphite electrodes and carbon additives, with HS Chapter 85 covering the electrodes (HS 8504.30) and HS Chapter 38 covering carbon chemicals (HS 3801). Export shipments are frequently loaded in 20‑ft or 40‑ft containers, often palletised for electrodes and bagged for additives. Typical destination regions include East Asia, Europe and North America, where steel mills, aluminium smelters and refractory manufacturers source these materials. Buyers usually require compliance with standards such as ASTM A997 for electrodes and ISO 9001 quality management from the supplier. In addition, Chinese exporters often provide third‑party inspection reports (SGS, BV) and may need to meet REACH registration for carbon chemicals destined for the EU.

Sourcing from Qingdao Tennry Carbon Co., Ltd - Buyer Guidance

When sourcing graphite electrodes from this supplier, buyers should request mill test reports that detail carbon purity, sulphur and ash content, electrical resistivity, and mechanical strength (tensile and compressive). For the carbon additives, a specification sheet showing sulphur level, carbon percentage, particle size distribution and moisture content is standard. Buyers are advised to verify that the supplier can provide certificates such as ISO 9001 or ISO 14001, and to ask for an independent inspection certificate before shipment. Confirm packaging - electrodes are usually wrapped in anti‑static film and palletised, while additives are often sealed in 25 kg or 1 ton bags - to ensure safe transport.

What grades of graphite electrode does Qingdao Tennry Carbon offer?

The catalogue lists RP (regular‑grade), Hp (high‑purity) and UHP (ultra‑high‑purity) graphite electrodes, which correspond to increasing purity and current‑carrying capacity.

What are the typical specifications for the RP graphite electrode?

RP electrodes are commonly rated up to 5 kA, with carbon purity around 99.5 %, sulphur ≤0.03 % and ash ≤0.15 %.

Which standard is used for high‑purity graphite electrodes?

Hp electrodes usually meet ASTM A997, requiring ≥99.9 % carbon and sulphur ≤0.02 %.

What purity level is expected for the UHP graphite electrode?

UHP electrodes are typically ≥99.95 % carbon, sulphur ≤0.01 % and are used for currents above 10 kA.

What characteristics define the low‑sulphur carbon additive?

It is supplied with sulphur content ≤0.01 % by weight, carbon content ≥95 %, and moisture below 0.5 %.

How should buyers verify the high‑carbon additive?

Request a specification sheet showing carbon ≥95 %, low ash, particle size distribution and a third‑party analysis report.

Which certifications are commonly required for these carbon products?

Buyers usually ask for ISO 9001 quality management, ISO 14001 environmental compliance, and an independent inspection certificate such as SGS.

What packaging is typical for the graphite electrodes and carbon additives?

Electrodes are generally wrapped in anti‑static film and palletised; carbon additives are often packed in sealed 25 kg or bulk 1 ton bags suitable for container loading.