Baimaoxing
Explore our primary industrial metallic selection, featuring cold-rolled carbon alloys, wear-resistant brass plates, high-grade titanium sheets, and universal copper tubes engineered for high-stress manufacturing environments.
Premium wear-resistant copper-zinc alloy sheets optimized for facade architecture, structural panel systems, and high-durability internal partitions.
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Aerospace and chemical processing grade titanium plates providing exceptional strength-to-weight ratios and complete corrosion immunity in saline and acidic media.
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Cold-rolled austenitic and ferritic sheets featuring high mechanical tensile strength and superior anti-oxidation profiles for food-grade, surgical, and structural uses.
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Ultra-pure electrical-grade copper sheeting boasting superior thermal and electrical conductivity, ideal for busbars, transformers, and heat exchange systems.
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Brightly polished, custom-dimension solid bars providing extreme bending resilience, structural support, and chemical resistance for machinery parts.
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Seamless brass pipes custom-extruded for refrigeration, HVAC systems, sanitary installations, and general fluid transportation channels.
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Comprehensive mill-finish and coated aluminum coil series covering structural temper variants (H112, H14, H18, H24) for complex forming tasks.
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Machining-grade solid brass rods offering outstanding free-cutting properties, structural hardness, and electrical conductivity for connectors.
Technical SpecificationsAlloy 3105 is an Al-Mn-Mg series work-hardening aluminum alloy, containing approximately 0.3% to 0.8% Manganese (Mn) and 0.2% to 0.8% Magnesium (Mg). Often designated as a medium-strength alloy with outstanding corrosion resistance and formability, 3105 aluminum coils exhibit up to 15% higher mechanical yield limits than the baseline 3003 series, making it the industry standard substrate for structural color coating, sheet metal components, and deep-drawn packaging products.
| Chemical Element | Si (Silicon) | Fe (Iron) | Cu (Copper) | Mn (Manganese) | Mg (Magnesium) | Cr (Chromium) | Zn (Zinc) | Ti (Titanium) | Al (Aluminum) |
|---|---|---|---|---|---|---|---|---|---|
| Percentage (%) | 0.6 max | 0.7 max | 0.3 max | 0.3 - 0.8 | 0.2 - 0.8 | 0.2 max | 0.4 max | 0.1 max | Remainder |
By integrating both Mn and Mg into the aluminum solid solution, 3105 alloy displays an enhanced work-hardening rate. When processed through H14 or H24 tempers, it offers yield strengths in the range of 120-180 MPa while preserving critical elongation values needed for subsequent rolling, bending, and roll-forming operations without micro-cracking.
The native oxide layer formed on 3105 aluminum is chemically inert and exhibits superior resistance to localized pitting and atmospheric oxidation. When subjected to acidic industrial atmospheres or saline coastal environments, 3105 maintains long-term structural reliability, which is why it is preferred for rain gutters and building facades.
The microstructural grain control achieved in Shandong Baimaoxing's hot-rolling mill allows the 3105 alloy to undergo extreme structural deformation. This high plasticity makes it ideal for complex architectural details, complex metal panels, heat exchangers, and bottle caps which require tight radiuses without tearing.
Across the international manufacturing sector, structural lightness combined with corrosion resilience is a primary engineering goal. The 3105 aluminum coil acts as a vital structural component within the modern supply chain. Below are the key sectors utilizing our technical solutions globally:
In thermal management and residential/commercial HVAC installations, 3105 aluminum serves as high-stability casing and heat exchanger structural sheets. Its ability to survive cyclic humidity variations without intergranular corrosion ensures that the internal thermal profiles remain stable over multi-decade lifespans, cutting down operational and maintenance overheads.
As green building certifications (such as LEED and BREEAM) grow more stringent, the demand for highly recyclable building envelopes has risen. 3105 aluminum coils, often made from recycled scrap feeds, require only 5% of the energy needed for primary aluminum production. They are processed into prepainted architectural siding, roof panels, and insulated sandwich boards, providing a lightweight, low-carbon alternative to structural steel.
Within the consumer packaging sector, the material properties of the alloy are exploited for roll-on pilfer-proof (ROPP) bottle caps, beverage closures, and deep-drawn can ends. In this application, high ductility is critical. 3105 alloy permits high-speed stamping and deep forming with near-zero failure rates, minimizing scrap and improving output for canning lines.




Located in the industrial hub of Liaocheng City, Shandong Province, China, Shandong Baimaoxing Iron and Steel Co., Ltd. is a premier metal supplier specializing in metallurgical research, processing, international distribution, and dedicated engineering services.
Our expansive business portfolio encompasses specialized steel pipes, high-strength carbon plates, stainless steel coils (grades 201, 304, 316L), wear-resistant brass plates, high-grade copper sheets (C1100, C70600), titanium alloys (Gr1 to Gr5), prepainted galvanized steel coils (PPGI & PPGL), and structural aluminum alloys. Baimaoxing operates on a scientific management paradigm, and our certified products are widely utilized across aerospace, petrochemical engineering, defense, ship building, precision mechanical tool systems, transport infrastructure, and packaging machinery industries worldwide.






To operate successfully in highly regulated global markets, compliance with local standards is critical. Our 3105 aluminum coils are produced in strict alignment with regional manufacturing benchmarks including ASTM B209 (North America), EN 485 / EN 573 (Europe), and JIS H4000 (Japan). This compliance ensures that our products meet the exact mechanical, dimensional tolerance, and chemical purity standards required for import and assembly in major markets.
Standards: ASTM B209, ASME SB209
Our materials undergo regular testing for tensile strength (UTS: 115 - 200 MPa), 0.2% yield offset, and clear bend limits. Every batch shipped to USA and Canadian markets is issued with a certified material test report (MTR) detailing chemical analysis and physical testing verification.
Standards: EN 485-2, EN 573-3, REACH, RoHS
Our manufacturing processes ensure that trace heavy metal content (such as Lead, Cadmium, and Mercury) is kept well below RoHS thresholds. These coils are fully certified for export to the EU, supporting building facades and product containers.
Standards: JIS H4000, GB/T 3880
Optimized for precision stamping and sheet metal fabrication lines in Japan, Korea, and Southeast Asia. The coils are manufactured with minimal thickness tolerances and flatness parameters to prevent equipment jams during automated processing.
Shandong Baimaoxing is committed to a green transition. Over the next five years, our technical roadmap focuses on reducing carbon intensity. We are expanding the use of green electricity (such as solar and hydro-power) in our refining steps and aiming for a 75% recycled aluminum input target for our 3000-series alloy lines. This helps our global clients meet Scope 3 emissions reduction targets, ensuring long-term supply chain sustainability.
We provide our customers with raw metals alongside custom processing, sizing, tension leveling, surface slitting, protective film application, and direct logistical support.
Our metallurgical team holds decades of combined experience in continuous casting, cold rolling, and heat treatment optimization to resolve processing challenges.
Our factory is certified to ISO 9001:2015 standards. Selected products hold SGS environmental and material performance reports, fully matching EU ROHS benchmarks.
Our operational flowchart integrates real-time ERP monitoring with strict checkpoints. From scrap feedstock selection and chemical spectroscopy analysis to hot rolling, cold reduction, final leveling, and packing, every step is traced with barcode documentation.






We operate advanced high-precision rolling mills, high-speed slitting lines, and automated tension-levelers. This equipment allows us to control strip shape and thickness tolerances, ensuring flat, uniform coil surfaces for downstream color-coating or forming.






Our testing facilities are equipped with optical emission spectrometers, mechanical testing machines, and salt-spray corrosion chambers. Every batch of 3105 aluminum is verified for chemical composition and mechanical properties before shipping.






We actively present our latest metallurgical products at international trade fairs, demonstrating our manufacturing capabilities and establishing connections with procurement departments globally.






Our high-quality carbon steel round bars cover grades Q235B, A36, 1045 and 45#, with customizable diameters (5–300mm) and lengths up to 6m (or cut-to-size). Featuring excellent machinability, weldability and tensile strength, they undergo precision forging/rolling and strict quality checks. Compliant with ASTM and GB standards, they suit machinery parts, fasteners, shafts, construction brackets and automotive components for industrial use.
Carbon steel plate: Carbon steel refers to carbon steel with a carbon content of less than 0.8%. Compared to carbon structural steel, carbon steel has lower levels of sulfur, phosphorus, and non-metallic inclusions, resulting in better mechanical properties. Based on carbon content, carbon steel can be divided into three categories: low-carbon steel (C≤0.25%), medium-carbon steel (C 0.25-0.6%), and high-carbon steel (C>0.6%).
Carbon steel pipe is a steel pipe made by perforating steel ingots or solid round steel into rough pipes, and then hot rolling, cold rolling or cold drawing. Carbon steel pipe plays an important role in my country's steel pipe industry and is widely used in various industrial fields. Characteristics: Good toughness for hot-rolled, smooth finish and high strength for cold-rolled. Applied widely in bridges, buildings, brackets, fluid delivery pipelines, etc.
Our premium carbon steel plates cover structural and mechanical grades like Q235B, Q355B, A36 and 1045, with full documentation and mechanical property assurances.
We stock high-quality stainless steel coils and plates in grades 201, 304, 316, and 321. Surface finishes include 2B, BA, No.4, Hairline, and Mirror polished, meeting diverse requirements from sanitary piping to chemical storage tanks.
Our copper range includes 99.9% pure C1100 copper plates, C12200 deoxidized copper tubes, C70600 copper-nickel alloys, and brass rods (H59, H62, H65) offering excellent cold formability and electric conduction profiles.
Specialty supply of 1000, 3000, 5000, 6000, and 7000 series aluminum alloy sheets and coils alongside ASTM B265 Titanium plates (Gr1, Gr2, Gr3, Gr5) for demanding environments.
Color-coated steel sheets and coils (PPGI / PPGL) with paint coatings in polyester (PE), silicone modified polyester (SMP), high durability polyester (HDP), and polyvinylidene fluoride (PVDF) for durable outdoor applications.
Get authoritative technical answers regarding metallurgy, processing specifications, and order logistics for 3105 aluminum alloys.
Explore our range of customizable color-coated roofing sheets, high-strength alloy round bars, corrosion-resistant titanium tubes, and pre-coated galvanized steel coils engineered to support infrastructure and manufacturing lines.
Heavy-duty galvanized base coils coated with protective polymers (PVDF/PE), designed for extreme outdoor exposure and long-term roofing systems.
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High-tensile alloy steel round bars (6mm-600mm) suitable for high-stress gears, shafts, structural fasteners, and heavy industrial machinery components.
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Customizable mid-to-high hardness roofing sheets offering excellent load-bearing capacity and corrosion resistance for agricultural and industrial buildings.
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Seamless and welded titanium tubes designed for heat exchangers, marine exhaust systems, and chemical processing pipelines.
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Extensive inventory of structural aluminum sheets, including medium-strength and aerospace-grade alloys, cut to custom dimensions.
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Precision-rolled stainless steel coils available in grades 304, 316, and 430, with tailored slit widths and surface finish parameters.
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Pressure-rated carbon steel pipes (Sch40/Sch80) suitable for steam, water, gas, and structural structural piling installations.
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High-precision prepainted steel coils (0.12mm-4.0mm) featuring custom RAL colors and excellent paint adhesion for roll forming.
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