Import Black Annealed — Buy in wholesale FOB from Supplier in China

Black annealed cold rolled steel coil from Yuxuan Steel is produced in Tangshan's Fengrun District, Hebei Province, a concentration zone for Chinese steel manufacturing with integrated hot rolling and cold rolling capacity. The material is cold rolled carbon steel that has undergone annealing, a heat treatment process that recrystallises the deformed grain structure to restore ductility and reduce hardness after cold reduction. Available grades span SPCC, SPCD, SPCE under JIS G3141, and DC01 through DC06 under EN10130, with corresponding GB/T5213 Chinese standards also referenced. The surface finish is described as smooth and bright, free from edge defects and blur at coil extremities, indicating controlled annealing atmosphere and levelling processes. Thickness, width, coil weight, and inner diameter specifications are not stated in the source and require direct confirmation from the supplier.

The annealing process for black annealed coil typically employs a non-oxidising or controlled-atmosphere furnace, producing a darker surface oxide than bright annealing but maintaining equivalent mechanical properties for forming applications. SPCC and DC01 represent commercial quality suitable for simple bending and moderate drawing; SPCD/SPCE and DC03-DC06 progress through drawing quality to deep drawing and extra deep drawing grades with progressively lower carbon content and inclusion control. Typical yield strength ranges from declaration values of 140 to 280 MPa depending on grade and temper, with elongation at break commonly 30 to 40 percent for softer grades. Surface roughness (Ra) is typically controlled between 0.4 and 1.5 micrometres for black annealed products to optimise paint adhesion or subsequent galvanising performance. The coil's oiled or unoiled condition, and whether passivation is applied, are not specified in the listing.

Primary applications include automotive structural and panel stampings, appliance housings, office equipment chassis, furniture components, and as substrate for hot-dip galvanising or electrolytic tinning lines. Buyers span automotive tier-one stampers, white goods manufacturers, steel service centres, and coated steel producers seeking consistent formability in downstream processes. Trade terms, minimum order quantities, and lead times are absent from the source data and must be negotiated directly with Yuxuan Steel. Hebei Province's steel output dominance offers logistics advantages via Tianjin Port or Jingtang Port for bulk ocean freight, though specific loading arrangements require clarification. Import buyers should verify mill test certificate availability, third-party inspection acceptance, and compliance with destination market material certification requirements.

Yuxuan Steel operates from Fengrun District in Tangshan, Hebei Province, postal code 064000, located within China's largest steel-producing region by provincial output. The supplier's address places them proximate to major integrated steelworks and cold rolling mills that characterise the Tangshan industrial cluster, though the listing does not indicate whether Yuxuan Steel operates its own rolling and annealing facilities or functions as a trading company with mill relationships. The trust tier is harbour with a 0.00 percent response rate and zero recorded average response hours, meaning no platform-mediated buyer communication has been verified at time of listing. This profile structure suggests a newer or less digitally active supplier rather than necessarily an inexperienced operator.

The listing content demonstrates technical familiarity with cold rolled steel grade nomenclature and multi-standard compliance, referencing Japanese, European, and Chinese specifications in combination. No mill certifications, quality management system registrations (such as ISO 9001), production capacity figures, or named end-user relationships are disclosed. Annual turnover, employee count, export experience, and banking references are absent from the source material. Buyers should treat the company profile as a starting point for due diligence, requesting business licence verification, factory audit reports or video, and sample mill test certificates with chemical composition and mechanical test results before committing to volume orders. Direct communication through the supplier's listed channels is essential given the absence of platform response history.