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Product profile
Customization
AvailableColor
CopperMaterial
Copper, C11000/SPHCModel NO.
C11000/SPHC/C11000Product Type
StripCarbon Content
Medium CarbonPCD
Customize as NeededET
Customize as NeededHole
Customize as NeededTransport Package
Carton, PalletSpecification
brass / steelTrademark
EstarOrigin
NingboHS Code
721260000Production Capacity
10000tons/YearsKey features
Customizable Dimensions: PCD, ET, and Hole sizes can be customized as needed to meet specific user requirements.
High Bonding Strength: Copper-steel composite material features excellent elongation and high bonding strength for durability.
Low Resistivity: Composite structure ensures low resistivity, making it ideal for electrical conductor applications.
Military Grade Performance: Designed for bullet shells and detonators with high yield, dimensional accuracy, and corrosion resistance.
Superior Surface Quality: Surface quality comparable to pure copper with a lubricating brass effect to reduce barrel wear.
Vacuum Annealing Process: Manufactured via vacuum furnace annealing at 650-850 C for optimal structural molecular melting.
High Production Efficiency: Continuous processing capability allows for large batch production with consistent quality.
Diverse Material Options: Available with F11, F18, or SPHC steel bases and H90 copper cladding for various mechanical properties.
Company profile

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:Can the product dimensions be customized?
A:
Yes, PCD, ET, and Hole sizes can be customized as needed to meet specific user requirements.
Q:What are the main applications of this material?
A:
It is widely used in military products such as bullet shells and detonators, as well as general electrical conductors.
Q:What is the chemical composition of the steel strip?
A:
Available grades include F11, F18, and SPHC with specific carbon, silicon, manganese, and impurity limits.
Q:How is the copper-steel composite manufactured?
A:
The process involves cold rolling, surface cleaning, vacuum annealing at 650-850 C, and final rolling to bond the strips.
Q:What are the mechanical properties of the material?
A:
Tensile strength ranges from 265 to 455 MPa with elongation of at least 36% depending on the specific grade.
Send Inquiry
*To:
Ningbo Estar Metal Material Co., Ltd.
Ningbo Estar Metal Material Co., Ltd.*Content:
Supplier replies will be sent to your registered email
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