About Shanghai United Metal Materials - Magnets & Magnetic Products Supplier in China

Shanghai United Metal Materials is based in China and currently lists 11 active products across the Magnets & Magnetic Products and Agriculture categories. The catalogue includes Injection Molding Laptop Charger Parts (HS 8504.90) made from soft magnetic alloy (Fe‑Ni or Fe‑Si MIM grade), Steel 11SMNPB 30 Fastening For Textiles (HS 7318.29) of free‑cutting steel 11SMNPB30 (EN 10087 equivalent), Auto Clip Fastener Compression Titanium Fastener (HS 8108.90) using Ti‑6Al‑4V alloy, Alnico Magnet Ring Shaped Alnico 8 Magnets (HS 8505.11) of casting grade AlNiCo 8, China Free Energy Magnet Generator (HS 8501.61) comprising NdFeB sintered magnets with copper windings and steel housing, Stainless Steel Bushing Brass Bushing (HS 8483.30) of sintered bronze or stainless steel, Arc Magnet Soft Ferrite Core (HS 8504.90) of Mn‑Zn/Ni‑Zn ferrite, and Rubber Ferrite Magnet Fridge Magnet (HS 8505.19) of isotropic rubber‑bonded ferrite. Additional items such as a washing‑machine reverse gear box for motorcycle, turning parts for metal smoking pipes, and brand tools parts metal alloy parts are listed without HS codes.

The product set spans magnetic alloys, permanent magnet components, fasteners, and assorted metal alloy parts used in electronic, automotive and appliance applications. The HS code families cover Chapter 73 (iron and steel products), Chapter 84 (machinery and mechanical appliances), and Chapter 85 (electrical machinery), reflecting the mixed mechanical and electromagnetic nature of the offerings.

Product Range and Specialties of Shanghai United Metal Materials

The listed catalogue features soft magnetic alloys for charger components, free‑cutting steel fasteners for textile machinery, titanium Grade 5 fasteners, AlNiCo 8 permanent magnets, NdFeB sintered magnets, soft ferrite cores and rubber‑bonded ferrite magnets. In the magnetic materials market, NdFeB grades typically range from N35 to N52 with coercivity values of 800‑1200 kA/m, while AlNiCo 8 is valued for high temperature stability up to 550 °C and a typical remanence of 0.8 T. Soft ferrite cores are commonly produced in Mn‑Zn or Ni‑Zn compositions with permeability between 800‑1500 and a maximum operating frequency around 500 kHz. Titanium fasteners are usually supplied to ASTM B265 specifications, and free‑cutting steels such as 11SMNPB30 meet EN 10087 standards for machinability and tensile strength around 500 MPa. Standard packaging includes sealed cartons for magnet cores, 25 kg bulk bags for powdered alloys, and palletised boxes for fasteners, with typical minimum order quantities ranging from 500 units to 5 tons depending on the item.

Trade and Export Information - Shanghai United Metal Materials

China is a major exporter of magnetic components and precision metal fasteners, with primary destinations in the European Union, United States, Japan and Southeast Asian manufacturing hubs. HS 8501, 8504 and 8505 cover the bulk of permanent and soft magnetic products, while HS 7318 and 8108 apply to steel and titanium fasteners respectively; customs authorities often require a commercial invoice, packing list and material safety data sheet for these codes. Buyers usually request certifications such as ISO 9001 quality management, CE marking for electrical safety, RoHS and REACH compliance for metal alloys, and ASTM mill‑test certificates for steel and titanium parts. Shipping is typically arranged in 20‑ft or 40‑ft containers on wooden pallets, with Incoterms FOB or CIF prevailing in most China‑origin transactions. Export controls for magnetic materials in China involve monitoring of rare‑earth content, so end‑users may be asked to provide end‑use declarations.

Sourcing from Shanghai United Metal Materials - Buyer Guidance

When sourcing from Shanghai United Metal Materials, request a material test report that includes magnetic flux density (B‑r), coercivity (Hc), and composition analysis for NdFeB or AlNiCo items, and a mill‑test certificate for steel 11SMNPB30 and titanium Grade 5 fasteners. Verify that the supplier can supply CE, RoHS or REACH declarations where applicable, and confirm packaging details such as moisture‑proof bags for ferrite cores or anti‑corrosion coating for stainless steel bushings. Typical lead times for custom‑molded magnetic parts are 4‑6 weeks, and buyers should clarify MOQ, sample availability and any required pre‑shipment inspections before confirming the order.

What magnetic material grades does Shanghai United Metal Materials offer?

The catalogue lists soft magnetic alloy (Fe‑Ni or Fe‑Si MIM grade), AlNiCo 8 casting grade, NdFeB sintered magnets and soft ferrite (Mn‑Zn/Ni‑Zn) cores. These correspond to industry grades ranging from N35‑N52 for NdFeB and standard AlNiCo 8 specifications used in high‑temperature applications.

How can I confirm the composition of the NdFeB magnets in the China Free Energy Magnet Generator?

Request a material test report that includes rare‑earth content (Nd, Fe, B percentages), magnetic properties (B‑r, Hc) and a mill‑test certificate. The supplier should also provide a compliance statement for RoHS and REACH if the magnets are destined for electronic equipment.

Which certifications are typically required for the titanium fasteners (Ti‑6Al‑4V) listed?

Buyers usually ask for ASTM B265 or ISO 5832‑3 mill‑test certificates, as well as CE marking for safety‑critical applications. RoHS compliance may also be requested if the fasteners are used in electronic assemblies.

What packaging formats are used for the magnetic cores and ferrite magnets?

Soft magnetic cores and ferrite cores are commonly packed in moisture‑proof sealed bags within cardboard cartons, while rubber‑bonded ferrite fridge magnets are supplied in bulk poly‑bags. For bulk shipments, the items are palletised on wooden pallets with shrink‑wrap to prevent damage during transport.

Are the HS codes provided in the catalogue standard for these product types?

Yes. HS 8504.90 covers other electrical machines and parts such as the soft magnetic alloy charger parts and ferrite cores; HS 8505.11 and 8505.19 cover permanent magnets like AlNiCo 8 and rubber‑bonded ferrite; HS 7318.29 applies to free‑cutting steel fasteners, and HS 8108.90 to other base metal products such as titanium fasteners.

What is the typical lead time for Alnico 8 magnet rings?

AlNiCo 8 casting and machining usually require 4‑5 weeks from order confirmation, depending on the required dimensions and any post‑processing such as heat treatment or surface coating.

Can I obtain a mill test certificate for the free‑cutting steel 11SMNPB30?

A mill test certificate conforming to EN 10087 (or equivalent) should be provided on request, detailing chemical composition, tensile strength, hardness and machinability grades.

How are samples supplied for the rubber‑bonded ferrite fridge magnets?

The supplier can ship a small batch (typically 100‑200 units) in a sealed poly‑bag, accompanied by a test report showing magnetic pull force and binder composition, allowing the buyer to evaluate performance before full‑scale ordering.