Import Blind Plate — Buy in Bulk from Supplier in China

Blind plates from WH-steel Co. Ltd. are forged flanges designed to seal pipeline ends under pressure, conforming to ASME B16.5 and ANSI standards. Available in sizes from 1 inch to 48 inches (DN15 to DN3000), they are manufactured to pressure ratings of #150, #300, #600, #900, #1500, and #2500, or metric equivalents PN16 through PN200. Face finishes include electro-galvanized or hot-dip galvanized options as specified. These plates are not threaded or welded but serve as permanent sealing barriers in high-pressure systems.

The material options include ASTM A105 carbon steel, A182 F304/L and F316/L stainless steels, A350 LF2 low-temperature carbon steel, and A694 F42 to F70 high-strength forgings. These are standard grades for industrial flanges, with material certifications available upon request. The forging process ensures grain flow continuity and mechanical integrity under thermal and mechanical stress. Surface treatments are applied post-forging and are not inherent to the base material.

Blind plates are commonly purchased by engineering firms in oil and gas, chemical processing, and power generation for pipeline isolation during maintenance or shutdowns. Buyers typically require material traceability, hydrostatic test reports, and dimensional compliance certificates. Packaging is customised per order, with individual plates wrapped and stacked on wooden pallets. Trade terms are FOB Cangzhou port, with lead times of 3 to 6 weeks depending on grade and quantity.

WH-steel Co. Ltd. operates from Cangzhou City in Hebei Province, a known hub for forged flange and pipe fitting manufacturing in China. The company is listed as a harbor-tier supplier, indicating verified production capability and export experience. There is no public data on years in business, workforce size, or revenue. The listing confirms manufacturing capability but does not state certifications such as ISO 9001, third-party inspection reports, or client names.

The supplier does not provide details on testing facilities, heat treatment processes, or metallurgical lab access. Response metrics are unavailable, with zero response rate and zero average response hours recorded. Buyers should treat this as a manufacturer with confirmed forging capacity but unverified quality systems unless documentation is provided upon request.