Import Astm Prepainted Steel Coil — Buy in Bulk from Supplier in China

Qingdao Qinyuansteel supplies ASTM prepainted steel coil from their base in Shandong Province, China, with a painted organic coating applied to hot-dip galvanized or zinc-aluminum substrate. The ASTM designation DIN designation indicates conformance to American Society for Testing and Materials specifications for coated steel sheet, covering coating weight, adhesion, bend testing, and accelerated weathering performance. Prepainted coils eliminate post-fabrication painting, reducing volatile organic compound emissions and improving throughput for roofing, appliance, and automotive panel manufacturers.

The substrate is typically hot-dip galvanized steel to ASTM A653 or zinc-aluminum alloy coated steel to ASTM A792, with coating weights expressed as total both sides in g/m². Common paint systems include polyester, silicone-modified polyester, polyvinylidene fluoride (PVDF), and polyurethane, selected by expected service environment and color retention requirements. Thickness of the base metal typically ranges from 0.3 mm to 1.2 mm for building applications, with coil widths of 600 mm to 1,500 mm as standard industry dimensions. The paint film thickness, measured in microns, directly impacts corrosion resistance and chalking resistance over the design life.

Construction sector buyers use prepainted coil for roofing, wall cladding, and structural sandwich panels; appliance manufacturers form it into refrigerator doors, washer cabinets, and air conditioner housings; automotive suppliers apply it for interior trim and exterior accent panels. Color matching, gloss level, and embossing patterns are customizable within supplier capability ranges. Buyers should confirm with Qingdao Qinyuansteel the exact substrate grade, coating weight, paint system type, and available color range, as these determine suitability for specific end-use environments and warranty expectations.

Qingdao Qinyuansteel Co., Ltd. is located on Lian Yun Gang Road, Shi Bei District, Qingdao 266000, Shandong, China, a region with significant steel production and port infrastructure. The supplier holds a harbor trust tier classification with a response rate of 0.00 percent and zero average response hours recorded, suggesting limited recent engagement data. No founding date, annual output tonnage, number of employees, or named domestic or international clients appear in the available profile information.

The company lists ASTM prepainted steel coil as a primary product, emphasizing ASTM compliance, color variety, and weathering resistance. Their profile does not specify mill partnerships, coating line capacity, or laboratory testing equipment. Buyers must independently verify current ISO 9001 or IATF 16949 certification status, substrate sourcing practices, and whether Qingdao Qinyuansteel operates slitting and cut-to-length services in-house or through subcontractors. All trade terms, volume commitments, and technical warranties require direct confirmation with the supplier.