Import Heat Treatment Black Finished Steel Strip — Buy in Bulk from Supplier in China

The heat treatment black finished steel strip is supplied by Linyi Liangyu Steel Strip Co., Ltd. and is manufactured from 50# and 65Mn carbon steel grades. Thickness ranges from 0.3 mm to 2.5 mm while width is available between 40 mm and 230 mm, giving buyers flexibility for different component sizes. The strip receives a black surface finish that adds visual uniformity and improves corrosion resistance compared with untreated steel. Colours such as bright, blue and yellow are also produced in the same line, though the black finish is the primary offering for this listing.

The base material, 50# and 65Mn, is a standard low‑alloy steel widely used after quenching and tempering to achieve a balance of strength and ductility. Typical tensile strength for these grades after heat treatment lies between 600 and 800 MPa, and surface hardness is commonly 200‑250 HB. Dimensional tolerance is usually ±0.02 mm for thickness and ±0.5 mm for width, which matches industry practice for precision sheet applications. Packaging is generally supplied as coils or cut‑to‑length pieces wrapped in protective film, a standard method that eases handling and storage.

Typical end‑users include automotive component manufacturers, construction steel fabricators and machinery makers that require durable, corrosion‑resistant strip for brackets, panels and reinforcement parts. Buyers often request FOB or CIF terms and note that the supplier can accommodate flexible minimum order quantities, although exact MOQ should be confirmed directly. The product is claimed to meet relevant ISO and SGS certifications, providing a baseline of quality compliance for importers. Prospective purchasers are advised to verify current certification copies and shipping schedules before finalising the contract.

Linyi Liangyu Steel Strip Co., Ltd. is located in Taiping Town, Hedong District, Linyi, Shandong Province, China. The company is listed as an imported‑tier supplier with a harbor trust tier, indicating that it participates in cross‑border trade channels through major ports. Its public response statistics show a response rate of 0%, meaning that interested buyers should anticipate the need for proactive follow‑up to obtain quotations or technical data.

The supplier’s catalogue focuses on heat‑treated steel strips in various finishes, and it states that it can provide necessary certifications such as ISO and SGS upon request. No additional corporate history, employee numbers or revenue figures are disclosed, so importers should request any missing compliance documents directly. Communication channels are limited according to the available data, so establishing a clear point of contact early in the sourcing process is advisable.