About Wuhan Yinyu Investment Casting Co., Ltd - Metal Castings & Forgings Supplier in

Wuhan Yinyu Investment Casting Co., Ltd lists seven active product lines covering metal castings, hardware accessories and related components. The catalogue specifies investment castings (HS 8481.30) in stainless, carbon and alloy steels, machine casting parts (HS 8483.50) in carbon or alloy steel, hardware accessories (HS 7326.90) in carbon or alloy steel, drill‑bit bodies (HS 8466.93) forged from alloy or carbon steel, and plier parts (HS 8203.20) forged from chrome‑vanadium steel. Additional entries for sewing‑machine casting parts and lock parts are present without HS codes but are described as steel‑based components. Each entry references material families rather than a single grade, indicating the supplier can produce multiple steel grades per customer specification.

The product count of seven reflects a focused portfolio that spans both precision investment castings and larger forged hardware items. The HS‑code families cited (8481, 8483, 7326, 8466, 8203) are standard classifications for industrial castings, steel hardware and hand‑tool components, which aligns the supplier with typical import‑export reporting for these commodities. No additional product categories are listed beyond the seven entries, keeping the range narrowly targeted to metal‑working and mechanical‑assembly parts.

Product Range and Specialties of Wuhan Yinyu Investment Casting Co., Ltd

The catalogue includes investment castings, machine casting parts, sewing‑machine casting parts, hardware accessories, lock parts, drill‑bit bodies and plier parts. Investment castings are typically produced by the lost‑wax process and can achieve tolerances of ±0.03 mm and surface finishes of 0.8 µm Ra, with common grades such as AISI 304 stainless, AISI 4140 alloy and high‑carbon steel. Machine casting parts often follow ISO 9001‑based dimensional control and may be supplied in standard sizes ranging from M5 to M30 threads. Drill‑bit bodies forged from alloy steel usually target hardness of 58 - 62 HRC and may be heat‑treated to meet ISO 6508. Plier parts made from chrome‑vanadium steel are commonly specified to meet ASTM A193 Grade B7 strength and a tensile strength of 1,200 MPa.

Trade and Export Information - Wuhan Yinyu Investment Casting Co., Ltd

China’s metal‑casting sector accounts for a large share of global supply, with exporters typically serving automotive, appliance and industrial equipment manufacturers in Southeast Asia, Europe and North America. HS chapter 84 castings (8481, 8483) and chapter 73 hardware (7326) are subject to customs inspection for material certification and may require a CIQ (China Inspection and Quarantine) declaration when shipped to the EU. Buyers often request ISO 9001 quality‑management certification, mill test reports (MTR) for steel grades, and compliance with RoHS for any coated components. Standard logistics involve 20‑ft or 40‑ft containers, with typical Incoterms such as FOB Wuhan Port or CIF destination port, and packaging in wooden crates or bulk pallets with moisture‑resistant liners.

Sourcing from Wuhan Yinyu Investment Casting Co., Ltd - Buyer Guidance

When sourcing from this supplier, request a detailed material test report that confirms chemical composition and mechanical properties for the specific steel grade cited in the order. Verify that the supplier can provide dimensional inspection certificates (e.g., GD&T reports) for precision castings and hardness test certificates for forged drill‑bit bodies. Sample part approval is standard practice; ask for a pilot batch with the exact surface finish and tolerance requirements before scaling up. Confirm whether the supplier holds ISO 9001 or similar QMS certification and whether they can arrange third‑party inspection (e.g., SGS, Bureau Veritas) prior to shipment.

What steel grades are available for the investment casting product line?

The supplier lists stainless steel, carbon steel and alloy steel as material families; typical grades include AISI 304, 316 for stainless and AISI 4140, 8620 for alloy steel, but the exact grade must be confirmed per order.

Can the drill‑bit bodies be heat‑treated to a specific hardness?

Yes, the drill‑bit bodies are forged from alloy or carbon steel and can be heat‑treated to achieve a hardness range of 58 - 62 HRC, provided the buyer specifies the target in the purchase order.

What documentation is needed for lock parts and sewing‑machine casting parts?

Buyers should request a mill test report for the steel composition and a dimensional inspection report; if the parts are coated, a RoHS compliance certificate may also be required.

Which HS codes apply to the hardware accessories?

Hardware accessories are classified under HS 7326.90, covering other iron or steel articles not elsewhere specified.

What are the typical packaging methods for these metal components?

Standard packaging includes wooden crates or bulk pallets with protective padding; moisture‑resistant liners are used for corrosion‑sensitive steel parts.

What are the common Incoterms used for shipping from this supplier?

Exporters from the region frequently use FOB Wuhan Port or CIF destination port, allowing the buyer to manage freight or have the seller arrange insurance and transport.

Is ISO 9001 certification available for this supplier?

The supplier’s public data does not list certifications; buyers should ask the supplier to provide a current ISO 9001 certificate or equivalent quality‑management documentation.

What is the minimum order quantity for plier parts?

MOQ details are not published; buyers typically discuss batch size during quotation, with small‑run orders often starting at a few hundred pieces depending on tooling availability.