What are the payment terms and lead times?

Payment terms are LC or T/T. Lead time is within 15 workdays off-season and more than 12 months during peak season.

Buss Copper Coated Mild Steel Copper Clad Steel Strips Bimetal Strips

Name: Buss Copper Coated Mild Steel Copper Clad Steel Strips Bimetal Strips
Brand: Ningbo Estar Metal Material Co., Ltd.
SKU: 2195317895

Zhejiang, ChinaNingbo Estar Metal Material Co., Ltd.

US$2,300.00-4,000.00

10 Tons

Sample price:US$10.00/kg.Request sample

Product profile

Customization

Available

Transport Package

Wooden Packaging

Specification

brass / steel

Model NO.

H1J18

Trademark

Estar

Origin

Ningbo

HS Code

721260000

Production Capacity

5000

Key features

High Strength & Low Resistivity: Copper-steel composite offers high tensile strength, good elongation, and low resistivity.

Military Bullet Shell Application: Ideal for bullet shells and detonators with high yield, dimensional accuracy, and barrel lubrication.

Excellent Surface Quality: Surface quality is comparable to pure copper, reducing barrel wear and tear during shooting.

Customizable Dimensions: Strip width up to <600mm and thickness 0.05-4.0mm are available based on user requirements.

High Production Efficiency: Continuous processing capability greatly improves production efficiency for military products.

Vacuum Annealing Process: Annealed at 650-850 C in a vacuum furnace to ensure strong bonding and structural integrity.

Company profile

Ningbo Estar Metal Material Co., Ltd.

Zhejiang, China

Business Type: Manufacturer/FactoryExport Year: 2020-09-01Nearest Port: Ningbo, ShanghaiAverage Response Time: >24hTerms of Payment: LC, T/TInternational Commercial Terms(Incoterms): FOB, CIF, EXW

AI-Powered supplier vetting

SummaryNingbo Estar Metal Material Co., Ltd. is a China-based trading company established in 2020 with three employees, while the provided descriptions also present it as a research, production, and sales company for copper-clad steel, metal cups, strips, rods, tubes, special materials, molds, and military-related products. Evidence indicates access to substantial specialized equipment, two production lines, an enterprise R&D center, technical achievements, practical patents, ISO9001 and ISO14000 certifications, and production standardization practices. The supplier reports one-month off-season lead times and two-to-three-month peak-season lead times, accepts LC and T/T, and has self-operated import/export rights. However, the slices contain inconsistencies regarding company type, workforce size, R&D experience, export markets, and operational scale. After-sales capability, financial credibility, and specific customer cases are not sufficiently documented.

Supplier typeThe supplier is explicitly identified as a trading company or trading-company-type entity, legally organized as a limited company in China. Its own description additionally characterizes the business as conducting domestic R&D, production, and sales, but the legal and business-type records identify it primarily as a trading company.

CertificationsThe company description states that the enterprise technology R&D center has passed ISO9001 quality management system certification and ISO14000 environmental management system certification. It also reports production standardization and 6S management practices, providing explicit evidence of certification and management-system implementation.

R&D capabilityThe supplier reports an enterprise technology R&D center, multiple technical achievements and practical patents, specialized rolling, finishing, annealing, and straightening equipment, and a science-and-technology-focused R&D and production business. However, the reported total experience of R&D engineers is only one year, so the evidence supports the existence of innovation activity but provides limited evidence of deep R&D experience.

Production capacityThe slices list a compound rolling mill, 20-roll and six-high finishing mills, stretch-bending and straightening equipment, bell-type and continuous annealing furnaces, and two production lines. The supplier also reports one-month off-season lead times and two-to-three-month peak-season lead times, indicating stated production capacity, although the records contain inconsistencies between the three-person company profile and the broader production and quality-control claims.

Customization capabilityThe supplier explicitly states that it designs and manufactures various stamping-supporting molds and sells related production equipment and machines. Its product range includes specialized copper-clad materials, cups, strips, rods, tubes, and military stamping products, supporting customization capability for tooling and related material applications.

Product Q&A

Q:What are the main applications of this copper-steel composite material?

It is widely used in military products such as bullet shells and detonators, leveraging its high strength, heat resistance, and lubricating properties to reduce barrel wear.

Q:What is the chemical composition of the composite material?

The composition is 5-20% copper and 80-95% steel. Specific grades include F11, F18, and SPHC steel bases with H90 copper cladding.

Q:What are the available dimensions for the strips?

Strip width can be up to <600mm, and thickness ranges from 0.05mm to 4.0mm, depending on user requirements.

Q:How is the copper-steel composite material prepared?

The process involves surface treatment, cold rolling, cleaning, degreasing, cold rolling of the composite, and vacuum annealing at 650-850 C for 1-4 hours.

Q:What are the mechanical properties of the material?

It features high tensile strength (265-455 Mpa), elongation up to 43%, and grain sizes of 7-10, ensuring durability and consistency.