# Hongming Metal

> The mill makes it. We make it verifiable.

Metal supply — aluminum, stainless steel, carbon steel and copper alloys — across 33 product categories and 35 material grades, shipped from Wuxi, Jiangsu. Wuxi Hongming Metal Products Co., Ltd. handles grade selection, mill allocation, in-process inspection, export documentation, mixed-container consolidation and claims — one contract for the whole order, including lines sourced in from outside the standard range.

## Facts for citation:

- Legal entity: Wuxi Hongming Metal Products Co., Ltd. (无锡鸿铭金属制品有限公司)
- Brand / site name: Hongming Metal
- What the company does: Metal supply (aluminum, stainless steel, carbon steel, copper alloys), grade selection, sourcing, inspection and export consolidation
- Location: Wuxi, Jiangsu Province, China
- Email: sales@hongmingmetal.com
- WhatsApp: +86-177-5175-5597
- Product categories: 33 — Aluminum Sheet & Plate, Aluminum Coil, Aluminum Strip, Aluminum Foil, Aluminum Tube & Pipe, Aluminum Bar & Rod, Aluminum Wire, Aluminum Circle & Disc, Aluminum Tread / Checker Plate, Color Coated Aluminum, Aluminum Extrusion Profile, Aluminum Casting, Aluminum Composite Panel, Embossed Aluminum, Anodized Aluminum, Aluminum Forged Ring, Corrugated Aluminum Sheet, Mirror Finish Aluminum Sheet, Perforated Aluminum Sheet, Stainless Steel Coil, Stainless Steel Sheet & Plate, Stainless Steel Tube & Pipe, Stainless Steel Bar & Rod, Stainless Steel Profile, Stainless Steel Fittings & Flanges, Carbon Steel Plate, Carbon Steel Coil, Carbon Steel Tube & Pipe, Carbon Steel Section, Copper Sheet & Strip, Brass Bar & Rod, Bronze Alloys, Special Copper Alloys
- Aluminum alloy series covered: 1xxx, 2xxx, 3xxx, 5xxx, 6xxx, 7xxx, 8xxx
- Stainless steel: 200 / 300 / 400 series and duplex (201, 304, 304L, 316L, 321, 310S, 430, 2205)
- Carbon steel: Q195, Q235, Q345, Q355, 20#, 45#, A36, SS400
- Copper alloys: pure copper (C10100 / C10200 / C11000), brass (C260 / C270 / C360), bronze (C51000 / C52100 / C61400 / C63000), special (C17200 / C71500 / C18150)
- Standards worked to: aluminum — ASTM B209, B221, B211, B210, B241, B247, B479, EN 485, EN 754, EN 755, GB/T 3880, GB/T 5237, JIS H4000; stainless — ASTM A240, A276, A312, A269, A403, EN 10088, JIS G4305; carbon — GB/T 700, GB/T 1591, ASTM A36, JIS G3101; copper — ASTM B152, B16, B139, B150, GB/T 2040, JIS H3100
- Certificates: EN 10204 3.1 or 2.2 to the grade the buyer specifies, plus third-party inspection (SGS / BV) or classification society approval on request
- Minimum order: 2 t stocked flat-rolled; 1 t foil; 500 kg per extrusion die
- Lead time: 7-12 days ex-stock; 15-45 days mill production depending on category
- Quote turnaround: within 24 hours on working days
- Incoterms: FOB Shanghai / Ningbo / Qingdao; CIF, CFR, DAP, EXW available
- Payment: 40% deposit minimum, balance before delivery; L/C and staged payment negotiable

## How an order is handled

- Production runs on audited lines in six Chinese regions; region and process are published, mill names are disclosed under NDA.
- Grade selection, allocation, in-process inspection, documentation, consolidation and claims are handled in-house, under one contract and one invoice.
- Items outside the standard range — custom temper, fabricated parts, coated finishes — are sourced in through the supply network and delivered under the same contract.
- If a requirement cannot be met, that is stated in the first reply rather than the fourth.

## Mill allocation (region and process published; mill names disclosed under NDA)

- Gongyi, Henan — Hot-rolled plate & thick gauge. Strong at: 5xxx marine plate, 6–200 mm, wide width. MOQ 5 t, lead time 25–35 days.
- Wuxi / Changzhou, Jiangsu — Cold-rolled sheet & coil, slitting. Strong at: 1xxx / 3xxx precision sheet, tight gauge tolerance. MOQ 2 t, lead time 15–22 days.
- Zouping / Binzhou, Shandong — Foil rolling. Strong at: Household, container and pharma foil; low pinhole count. MOQ 1 t, lead time 20–30 days.
- Foshan, Guangdong — Extrusion & anodizing. Strong at: 6063 / 6061 custom die section, anodizing 5–25 µm. MOQ 500 kg per die, lead time 18–28 days.
- Ningbo / Taizhou, Zhejiang — Color coating (coil coat line). Strong at: PVDF / PE coil coating, AAMA 2605 film build. MOQ 3 t, lead time 20–28 days.
- Luoyang, Henan — Forging & ring rolling. Strong at: 2xxx / 7xxx forged ring, Ø 200–4,000 mm. MOQ Per drawing, lead time 30–45 days.

## Key pages

- / — homepage: product range, grade selector, weight calculator
- /products/ — all 33 categories with spec tables
- /aluminum-grades/ — alloy series guide, 1xxx to 8xxx; each series links to 15 grade pages under /aluminum-grades/<grade>/
- /applications/ — eight end-use industries and the grades each one uses
- /quality-control/ — inspection checklist, EN 10204 2.2 vs 3.1, claims process
- /mill-allocation/ — which mill region runs what, and why names are withheld
- /request-a-quote/ — enquiry form (accepts drawings up to 10 MB)
- /request-a-sample/ — free A4 samples of stocked grades and finishes
- /tools/weight-calculator/ — Aluminum weight calculator with per-alloy density
- /faq/ — frequently asked questions
- /aluminum-problems/ — index of eight failure modes, each with cause, measurement and specification
- /guides/ — index of six long-form specification guides
- /markets/ — index of six market references (standards, ports, documentation)
- /about/ — legal entity, location and how an order is handled

## Reference library (written for citation)

Insights (working notes — mechanism over catalogue):
- /insights/ — index
- /insights/third-party-inspection-scope/ — What Third-Party Inspection Covers, and What It Misses. A clean eighteen-page report, and the plate arrives under-thickness. Nothing was falsified. The scope asked a different question.
- /insights/stainless-steel-grades-explained/ — Stainless Steel Grades Explained: 200, 300 and 400 Series. The number tells you the alloy family — austenitic, ferritic or duplex — and the family, not the exact grade, decides most jobs.
- /insights/seamless-vs-welded-stainless-steel-pipe/ — Seamless vs Welded Stainless Steel Pipe: Which to Specify. Seamless is not better — it is rated higher for pressure and costs 20–60% more. Most buyers pay the premium without ever needing the extra rating.
- /insights/stainless-steel-surface-finishes/ — Stainless Steel Surface Finishes: 2B, BA, No.4, Hairline, 8K. The finish is a measurable surface roughness, not decoration. The designation varies by mill — the Ra number is what you can actually hold someone to.
- /insights/incoterms-for-aluminum/ — Incoterms for Aluminum: FOB, CIF and DAP Compared. CIF obliges the seller to insure the cargo. The cover required happens to exclude handling damage and condensation, which is most of what goes wrong.
- /insights/304-vs-316l-stainless-steel/ — 304 vs 316L Stainless Steel: Which Grade to Specify. 316L is 304 with molybdenum added and carbon pulled down. The difference is one number — PREN — that decides everything in chloride service.
- /insights/container-loading-plan/ — How Many Tonnes Fit: Container Loading for Aluminum. Aluminium fills a container by weight, not volume. Why a 40-foot box often moves less metal than two 20-foot ones.
- /insights/aluminum-sheet-standard-sizes/ — Aluminum Sheet Standard Sizes and Thicknesses. The sizes that are stocked, the 6 mm sheet-to-plate line, and why a 7075 sheet in a 6061 size means a mill order and a longer lead time.
- /insights/aluminum-density-by-alloy/ — Aluminum Density and Specific Gravity by Alloy. Aluminum is sold by weight, specified by dimensions. The density table by alloy that turns a millimetre into a kilogram, from 1050 to 7075.
- /insights/aluminum-chemical-composition-limits/ — Chemical Composition Limits: ASTM vs EN vs GB. The first line of a mill certificate, and the one place a buyer can check a claim against a public number. Composition limits for the common grades.
- /insights/export-packaging-specification/ — What to Put in an Export Packing Specification. Ask three suppliers what seaworthy packing means and you get three answers. None of them is a specification you can inspect.
- /insights/aluminum-mechanical-properties-table/ — Mechanical Properties of Common Aluminum Grades. What you are really comparing is a handful of numbers. Tensile, yield and elongation for the grades buyers order, at their working temper.
- /insights/aluminum-coil-weight-calculation/ — Aluminum Coil: ID, OD, Weight and Length Calculation. A coil is a ring of wound strip. The formula that turns OD and ID into weight and footage, and the 1-3% correction for winding tension.
- /insights/aluminum-weight-per-square-meter/ — Aluminum Weight per Square Meter: Table by Thickness. Aluminum weighs about 2.70 kg per square metre per millimetre of thickness. The table by thickness and alloy, and the formula that checks any order.
- /insights/aluminum-gauge-chart-mm/ — Aluminum Gauge to mm Chart (B&S Scale). Aluminum gauge is not steel gauge. The B&S chart from 8 to 28 gauge, with millimetres and tolerance bands, and the rule that prevents ordering mist…
- /insights/aluminum-sheet-thickness-tolerance/ — Aluminum Sheet Thickness Tolerance: ASTM B209 vs EN 485. The tolerance depends on thickness and width. The matrix for ASTM B209, EN 485 and GB/T 3880, and the three questions that check any quote.
- /insights/8011-vs-1235-foil-packaging-battery/ — 8011 vs 1235: Foil Alloy for Packaging and Battery. 8011 is the strong iron-bearing foil for packaging; 1235 is the pure formable foil for capacitors and batteries. Pinhole count decides the lot.
- /insights/theoretical-vs-actual-weight/ — Theoretical or Actual Weight: What You Are Actually Paying For. The packing list says 20,000 kg. Your weighbridge says 20,180 kg. Nobody erred, and the gap is where a quiet argument starts.
- /insights/3105-vs-3003-roofing-cladding/ — 3105 vs 3003: Roofing and Cladding Selection. 3003 is the general roofing workhorse; 3105 is the stiffer pre-painted coil grade for longer spans. The coating usually decides.
- /insights/6063-vs-6061-extrusion-machining/ — 6063 vs 6061: Extrusion Alloy or Machining Alloy. 6063 is the extrusion alloy, 6061 is the strength alloy. The choice is shape and finish against a 40% strength gap.
- /insights/5754-vs-5052-automotive-sheet/ — 5754 vs 5052: Automotive Sheet Selection. 5754 is Europe's version of 5052. The choice is decided by the standard on the drawing, not by any performance gap.
- /insights/1050-vs-1060-vs-1100-purity/ — 1050 vs 1060 vs 1100: Purity, Conductivity and Price. 1050 and 1060 differ by 0.1% purity. 1100 adds copper for strength at the cost of conductivity. None of them is a strength grade.
- /insights/6061-vs-7075-strength-machining-cost/ — 6061 vs 7075 Aluminum: Strength, Machining and Cost. 6061 is the workhorse, 7075 is the specialist. The 75% strength gap is real, and it comes with two strings attached.
- /insights/3003-vs-5052-formability-corrosion/ — 3003 vs 5052 Aluminum: Formability Against Corrosion. 3003 forms more easily and costs less; 5052 is stronger and resists salt. The deciding variable is almost always the environment.
- /insights/5052-vs-5083-marine-grade/ — 5052 vs 5083 Aluminum: Which Marine Grade to Specify. 5083 is the hull, 5052 is everything bolted or formed onto it. The difference is one property that never shows up in a tensile table.
- /insights/tread-plate-thickness/ — Tread Plate Thickness: Base Metal vs Overall, and Why Orders Go Wrong. A caliper over the bars reads 6.5 mm, one on the flats reads 5.8 mm, and both are right. The order named a word that means two measurements.
- /insights/how-to-read-mill-test-certificate/ — How to Read an Aluminum Mill Test Certificate, Field by Field. Most buyers check the alloy and the tensile figure. The fields that decide whether the document is worth anything are further down the page.
- /insights/aluminum-rfq-template/ — How to Write an Aluminum RFQ: The 11 Fields That Avoid Requotes. Four days for a price, then three more rounds to fix it. Each missing field is one round trip. Eleven lines that end the loop.
- /insights/verifying-a-chinese-aluminum-supplier/ — How to Check a Chinese Aluminum Supplier Before You Send a Deposit. Price first, checks later is why deposits go wrong. Seven things to verify in two days — no factory visit required.
- /insights/6061-t6-vs-6082-t6/ — 6061-T6 or 6082-T6: Choose by Process, Not by Data Sheet. The data sheets match. Anodized color, thick-section strength and cycle time do not. Where each grade actually wins.
- /insights/aluminum-import-landed-cost/ — What Lands in Your Yard: Six Costs Between FOB and Your Door. A worked example: a $2.85/kg FOB quote that lands at $3.19/kg, and the three costs nobody puts on an invoice.
- /insights/aluminum-shipping-damage-packaging/ — Why Aluminum Arrives Damaged — and the Packaging That Prevents It. Three of the four common failures are decided before the container is sealed. What to specify, and how to keep the claim alive.

Guides:
- /guides/5052-vs-6061/ — 5052 vs 6061: Which Aluminum Alloy Do You Actually Need
- /guides/aluminum-temper-designations/ — Aluminum Temper Designations: What O, H and T Actually Mean
- /guides/en-10204-certificates/ — EN 10204 Certificates: 2.1, 2.2, 3.1 and 3.2 Explained
- /guides/anodizing-film-thickness/ — Anodizing Film Thickness Classes: AA5 to AA25
- /guides/astm-b209-en-485-gbt-3880/ — ASTM B209 vs EN 485 vs GB/T 3880: Reading Three Standards
- /guides/coil-vs-cut-to-length/ — Coil or Cut-to-Length Sheet: Choosing the Supply Form

Grade reference pages (composition limits and typical mechanicals):
- /aluminum-grades/1050/ — 1050 aluminum, commercially pure (1xxx series), density 2.705 g/cm3. Typical O 76/25 MPa, 37% elongation. Tempers quoted: O · H12 · H14 · H16 · H18 · H22 · H24.
- /aluminum-grades/1060/ — 1060 aluminum, commercially pure (1xxx series), density 2.705 g/cm3. Typical O 72/21 MPa, 30% elongation. Tempers quoted: O · H14 · H16 · H18 · H22 · H24.
- /aluminum-grades/1100/ — 1100 aluminum, commercially pure (1xxx series), density 2.710 g/cm3. Typical H14 130/110 MPa, 8.2% elongation. Tempers quoted: O · H12 · H14 · H16 · H18 · H22 · H24.
- /aluminum-grades/3003/ — 3003 aluminum, aluminum–manganese (3xxx series), density 2.730 g/cm3. Typical H14 160/130 MPa, 8.3% elongation. Tempers quoted: O · H12 · H14 · H16 · H18 · H22 · H24 · H26.
- /aluminum-grades/3004/ — 3004 aluminum, aluminum–manganese (3xxx series), density 2.720 g/cm3. Typical H32 210/170 MPa, 7.4% elongation. Tempers quoted: O · H32 · H34 · H36 · H38 · H112.
- /aluminum-grades/3105/ — 3105 aluminum, aluminum–manganese (3xxx series), density 2.720 g/cm3. Typical H24 170/140 MPa, 5.6% elongation. Tempers quoted: O · H22 · H24 · H26 · H28.
- /aluminum-grades/5052/ — 5052 aluminum, aluminum–magnesium (5xxx series), density 2.680 g/cm3. Typical O 190/79 MPa, 22% elongation; H32 230/180 MPa, 12% elongation. Tempers quoted: O · H32 · H34 · H36 · H38 · H112.
- /aluminum-grades/5083/ — 5083 aluminum, aluminum–magnesium (5xxx series), density 2.660 g/cm3. Typical H116 320/230 MPa, 12% elongation. Tempers quoted: O · H111 · H112 · H116 · H321.
- /aluminum-grades/5754/ — 5754 aluminum, aluminum–magnesium (5xxx series), density 2.670 g/cm3. Typical O 210/90 MPa, 19% elongation. Tempers quoted: O · H111 · H22 · H24 · H32 · H34.
- /aluminum-grades/6061/ — 6061 aluminum, aluminum–magnesium–silicon (6xxx series), density 2.700 g/cm3. Typical T6 310/270 MPa, 10% elongation. Tempers quoted: O · T4 · T451 · T6 · T651 · T6511.
- /aluminum-grades/6082/ — 6082 aluminum, aluminum–magnesium–silicon (6xxx series), density 2.700 g/cm3. Typical T6 330/270 MPa, 9.8% elongation. Tempers quoted: O · T4 · T6 · T651 · T6511.
- /aluminum-grades/6063/ — 6063 aluminum, aluminum–magnesium–silicon (6xxx series), density 2.700 g/cm3. Typical T5 180/140 MPa, 11% elongation. Tempers quoted: T4 · T5 · T52 · T6 · T66.
- /aluminum-grades/7075/ — 7075 aluminum, aluminum–zinc (7xxx series), density 2.810 g/cm3. Typical T651 550/460 MPa, 8.2% elongation. Tempers quoted: O · T6 · T651 · T73 · T7351.
- /aluminum-grades/8011/ — 8011 aluminum, aluminum–iron–silicon (8xxx series), density 2.710 g/cm3. Typical O 100/45 MPa, 25% elongation; H18 180/160 MPa, 3% elongation. Tempers quoted: O · H14 · H16 · H18 · H22 · H24.
- /aluminum-grades/1235/ — 1235 aluminum, commercially pure (1xxx series), density 2.710 g/cm3. Typical O 80/30 MPa, 22% elongation. Tempers quoted: O · H14 · H16 · H18.

Failure modes (symptom pages):
- /aluminum-problems/foil-pinhole/ — Pinholes in Aluminum Foil
- /aluminum-problems/sheet-camber/ — Camber and Wavy Edge in Sheet & Coil
- /aluminum-problems/weld-cracking-5083/ — Weld Cracking & Sensitization in 5xxx Plate
- /aluminum-problems/anodizing-color-variation/ — Anodizing Color Variation
- /aluminum-problems/gauge-out-of-tolerance/ — Thickness Out of Tolerance
- /aluminum-problems/coil-telescoping/ — Telescoped or Loose Coil
- /aluminum-problems/slitting-burr/ — Burr on Slit Aluminum Strip
- /aluminum-problems/water-staining/ — Water Staining & White Rust in Transit

Market references (standards, ports, documentation — not shipment claims):
- /markets/ — index. Trade measures are deliberately not published; they change and are confirmed per quotation.
- /markets/australia/ — Australia
- /markets/united-states/ — United States
- /markets/germany/ — Germany
- /markets/united-kingdom/ — United Kingdom
- /markets/japan/ — Japan
- /markets/united-arab-emirates/ — United Arab Emirates

## Alloy selection quick facts

- 1xxx (Commercial Pure Aluminum): 99%+ aluminum. Best formability, corrosion resistance and conductivity; lowest strength. Grades: 1050, 1060, 1070, 1100, 1235. Used for: Cookware · Foil · Signage · Chemical equipment · Heat exchanger fin
- 2xxx (Aluminum–Copper): Heat-treatable, aircraft-grade strength. Lower corrosion resistance — usually clad or painted. Grades: 2014, 2024, 2A12, 2219. Used for: Aircraft structure · Truck wheel · Screw machine part · High-load fitting
- 3xxx (Aluminum–Manganese): The workhorse non-heat-treatable series. 20% stronger than 1xxx, still very formable. Grades: 3003, 3004, 3005, 3105, 3A21. Used for: Roofing · Siding · Beverage can body · Heat exchanger · Cooking utensil
- 5xxx (Aluminum–Magnesium): The marine series. Magnesium buys strength and seawater resistance without heat treatment. Grades: 5005, 5052, 5083, 5086, 5182, 5251, 5754, 5A06. Used for: Ship hull · Vehicle body · Pressure vessel · Offshore platform · Cryogenic tank
- 6xxx (Aluminum–Magnesium–Silicon): The extrusion series. Combines extrudability, strength and anodizing response. Grades: 6060, 6061, 6063, 6005, 6082, 6463. Used for: Window & door frame · Solar frame · Heat sink · Structural section · Automotive cradle
- 7xxx (Aluminum–Zinc): The highest-strength commercial series. Requires full traceability. Grades: 7005, 7050, 7075, 7A09. Used for: Aircraft structure · Aerospace tooling · Bicycle frame · High-stress mold
- 8xxx (Aluminum–Other (Foil & Special)): Foil alloys plus lithium and iron-nickel specials. Grades: 8011, 8021, 8079. Used for: Household foil · Pharma blister · Capacitor foil · Cable wrap

## Optional

- /sitemap.xml — full URL list
- /privacy-policy/ — data handling