We offer four different types of linersas per API standard for all popular pumps to suit any drilling conditions, including premium chromium liners, ceramic liners, chromium-plated liners and hardened liners.

Specification: Outer Shell: 45# forged steel, tensile strength is σb>610MPa, yield strength is σs>450MPa, elongation is δ>17%, hardness is HRC180-200 Inner Sleeve: high chromium iron (centrifugal cast). [Main chemical compositions- Annealing hardness is HRC≤40. Heat treatment hardness is HRC59-67.

1)Premium Chromium Liners: premium liners combine the strength of a forged steel out shell with the abrasion and corrosion resistance of a high chromium iron inner sleeve. These liners feature a centrifugally cast high chrome iron sleeve which is machined and heat treated to a minimum uniform bore hardness of 62RC. Each liner is machined to close tolerance to assure ease of installation and long liner life with the inside diameter of these premium liners honed to a mirror-like finish for smooth even wear during the life superior performance under tough corrosive and abrasive conditions.

2) Ceramic Liners: ceramic liners combine the strength of a forged steel out shell with the abrasion and corrosion resistance of a ceramic inner sleeve. We provide Zirconia(ZrO3) sleeves as well as Alumina(AL2O3) sleeves of which Zirconia exhibits better impact strength, higher hardness and can be honed to finer surface finishes than alumina.

3) Chrome-plated Liners: HNA offer chromium-plated liners made from premium forged steel with the core plated by chrome. The chrome-plated liners have hardening characteristics of 58 to 62 Rockwell C hardness. Material is 45# forged steel, tensile strength is larger than 450MPA, elongation is larger than 17%, and hardness is HRC180-200. The bore is plated by chrome, thickness is 0.15-0.18mm, and hardness is HRC 58-60.

4) Hardened liners: HNA hardened liners offer economy in a liner that is made for normal to mildly corrosive mud conditions. These liners are hardened and heat treated under strict quality control to a minimum of 60 RC hardness and a depth of 125 inches. Each liner is honed to a mirror-like finish for smooth and even wears during the life of the liner and is machined to close tolerances to assure easy installation and long life.

If you need our items with competitive price and quick delivery, Please contact us. We offer you best and prompt help.

Miss Aily Ai
International Sales Consultant
Jinan Tianwei Innovation Oilfield Equipment Enterprise (OEE)
Jinding International Trade Development Ltd. (ITD)

Skype: oee-Aily

MSN: oee-aily at hotmail.com
Add: No.13 shunshi Road, Jinan Shandong, China. Post Code: 250002

TEL: 86-0531-67811566

FAX: 86-0531-67811577