Henan Gnee New Material Co., Ltd. is one of the most reliable manufacturers and suppliers of 5052 Aluminum Alloy Round Bar in China. With abundant experience, we warmly welcome you to wholesale high quality 5052 Aluminum Alloy Round Bar in stock here from our factory. Good service and reasonable price are available.
5052 Aluminum Round Bar Overview
5052 Aluminum Round Bar is an aluminum-magnesium alloy that work-hardens but cannot be heat-treated, so its temper is set by the amount of cold work (O = soft/annealed, H32 and H34 = progressively stronger). It resists corrosion well, especially in marine and industrial atmospheres, and it welds and forms cleanly. That combination makes it a practical choice for parts that are machined, bent, welded or exposed to weather. It is supplied as cold-finished (drawn) round bar to ASTM B211, and we confirm the exact size, temper and tolerance against your drawing before production.
If you need a quote, send your application, diameter, length, temper and required standard - we confirm alloy selection, packing and lead time together.
Specifications of 5052 Aluminum Round Bar
| Parameter | Value |
|---|---|
| Grade | 5052 (UNS A95052, EN AW-5052, DIN 3.3523) |
| Temper | O, H12, H14, H16, H18, H22, H24, H26, H32, H34, H36, H38, H112 |
| Shape | Round bar / rod (cold-finished); square and hex on request |
| Diameter range | Ø 3–300 mm (custom and non-standard sizes on request) |
| Length | 1–6 m, fixed / multiple / cut-to-length |
| Diameter tolerance | Per ANSI H35.2(M) §9 - e.g. 0.050 mm for Ø 12.50–25.00 mm cold-finished rod (see table below) |
| Straightness | 2 mm/m (cold-finished, non-TX51) |
| Surface | Mill finish (standard); bright-drawn or light polished on request |
| Standard | ASTM B211 (primary); EN 754-2 (cold-drawn), EN 755-2 (extruded), AMS 4114 (H32 bar), QQ-A-225/7 |
Sizes above are orderable typical ranges, not a stock guarantee; final diameter, length, temper and tolerance are fixed by your confirmed drawing and the mill test certificate.
Diameter tolerance - ANSI H35.2(M), cold-finished round bar
| Diameter (mm) | Allowance (± mm) |
|---|---|
| ≤ 10.00 | 0.040 |
| 12.50–25.00 | 0.050 |
| 25.00–50.00 | 0.080 |
| 50.00–70.00 | 0.150 |
| 70.00–90.00 | 0.200 |
| 90.00–120.00 | 0.300 |
Allowance is the permitted deviation on diameter per ANSI H35.2(M)-2000 Table 9.1 (cold-finished rod). Rolled bar uses wider limits; confirm the form and size class when you inquire.
Chemical Composition of 5052 Aluminum Round Bar
| Element | Limit (wt%) |
|---|---|
| Si | ≤ 0.25 |
| Fe | ≤ 0.40 |
| Cu | ≤ 0.10 |
| Mn | ≤ 0.10 |
| Mg | 2.2 – 2.8 |
| Cr | 0.15 – 0.35 |
| Zn | ≤ 0.10 |
| Others, each | ≤ 0.05 |
| Others, total | ≤ 0.15 |
| Al | remainder |
Limits per ASTM B211 / AA 5052. The magnesium (2.2–2.8 %) keeps the alloy below the ~3.5 % level where stress-corrosion cracking risk rises. Final composition is reported on the heat analysis of the mill test certificate.
Mechanical Properties of 5052 Aluminum Round Bar
| Temper | UTS (MPa) | Yield (MPa) | Elongation (%) | Hardness (HB) |
|---|---|---|---|---|
| O (annealed) | 170 – 230 | ≥ 65 | ≥ 20 | ~ 47 |
| H32 | 210 – 250 | ≥ 160 | ≥ 7 | ~ 60 |
| H34 | 250 – 290 | ≥ 200 | ≥ 6 | ~ 68 |
Values are typical for the listed tempers (AA / ASTM / EN, multi-source) and are confirmed per mill test certificate. H32 and H34 are the most common bar tempers; O is used where forming or welding dominates.
Physical properties
| Property | Typical value |
|---|---|
| Density | 2.68 g/cm³ |
| Melting range | 607 – 650 °C |
| Coefficient of thermal expansion | 23.8 × 10⁻⁶ /K |
| Modulus of elasticity | 69 GPa |
| Thermal conductivity | 138 W/m·K |
| Electrical conductivity | ~ 35 % IACS |
Inspection and Testing of 5052 Aluminum Round Bar
Before packing we check each lot on the points below: diameter and length, grade identification, surface condition and mechanical properties. Inspection records and the mill test report go out with the shipment, and third-party inspection can be arranged on request.
Dimensions: diameter read at both ends and mid-length with caliper and micrometer; straightness checked against ANSI H35.2(M).
Grade check (PMI): alloy verified on the piece with handheld XRF and matched to the MTC heat number.
Surface: checked for seams, laps, cracks, dents and staining under normal workshop light.
Mechanical test: tensile and hardness taken from the same heat as the shipment; results appear on the MTC.
Test values are typical and are confirmed per mill test certificate / order.
Key Features of 5052 Aluminum Round Bar
Corrosion resistant: good in marine and industrial atmospheres; suitable for outdoor and welded structures.
Weldable: welds well by TIG/MIG; ER5356 filler is the usual choice (4043 is generally avoided for 5xxx alloys as it can lower corrosion resistance and weld ductility).
Formable: bends and spins cleanly in O and H32; harder tempers machine better than annealed stock.
Moderate strength: H34 reaches about 250–290 MPa UTS - enough for structural and machined parts without heat treatment.
Lightweight: density about 2.68 g/cm³, roughly one-third of steel.
Standard compliant: supplied to ASTM B211 with an EN 10204 3.1 mill test certificate on request.
Applications of 5052 Aluminum Round Bar
| Field | Typical use | Recommended temper | Typical diameter | Why this alloy fits |
|---|---|---|---|---|
| Building & structural | Brackets, handrails, architectural fittings, balcony frames | O / H32 | Ø 10–60 mm | Good corrosion resistance and formability for welded or bent structures exposed outdoors. |
| Machinery manufacturing | Shafts, bushings, machined parts, jigs and fixtures | H32 / H34 | Ø 10–120 mm | Moderate strength (H34 ~ 250–290 MPa UTS) with good machinability and close diameter tolerance. |
| Pressure vessels & tanks | Welded tanks, vessel fittings, chemical containers | O / H32 | Ø 20–150 mm | Weldable and corrosion resistant; H32 adds strength for pressurized service. |
| Piping & fluid systems | Pipe supports, clamps, fluid-system brackets | H32 | Ø 10–80 mm | Lightweight and corrosion resistant; easy to weld to adjacent aluminum piping. |
Applications listed are the established uses of 5052 in round-bar form. Tell us the service condition (load, environment, fabrication) and we confirm the temper and size.
Cutting and Fabrication of 5052 Aluminum Round Bar
We cut bars to your length (1–6 m standard, shorter on request) and can supply pre-machined blanks. 5052 machines better in the harder tempers (H32/H34) than in O, and light oil lubrication is recommended. For welded assemblies use ER5356 filler and keep the joint area clean. Continuous cold working reduces formability, so plan bending before heavy reduction.
About GNEE
Supplying aluminum since 2008. GNEE has shipped aluminum products since 2008 and now exports to more than 100 countries and regions, so standard and custom bar orders are handled on the same production line rather than brokered from unknown stock.
Common sizes in stock, special sizes to order. For 5052 round bar we usually hold popular diameters in stock for quick repeat shipments, and we roll or draw non-standard diameters and tempers against your drawing.
Small and large orders both work. MOQ is flexible - a trial quantity and a full container are quoted on the same terms, so quote the quantity you actually need.
Lead time 15–30 days. For standard specifications we confirm the date against the current production schedule before you commit, counted from order confirmation.
Paperwork with every shipment. An EN 10204 3.1 mill test certificate is standard; 3.2 and third-party inspection are arranged on request.
We read the drawing first. Our sales engineers ask about load, environment and fabrication before recommending a temper, and we tell you if a specified temper will not hold up in service.
Packaging and Shipping of 5052 Aluminum Round Bar
Bars are bundled, wrapped in stretch film or interleaving paper, then packed in wooden cases or on pallets with edge protection; bundles are strapped and marked per order. Export packing is adapted to the destination and mode. Incoterms FOB / CIF / EXW are confirmed per order, with shipment from Qingdao, Shanghai or Tianjin. For a quote, include quantity, diameter, length, temper and standard in your inquiry.
FAQ
What tempers are available for 5052 Aluminum Round Bar?
5052 is non-heat-treatable, so tempers come from cold work: O, H12/H14/H16/H18, H22/H24/H26, H32/H34/H36/H38 and H112. We stock O, H32 and H34 and produce other tempers to order. Tell us the service condition and we recommend the right one.
Can GNEE cut 5052 round bar to custom lengths?
Yes. We cut to length (1–6 m standard, shorter on request) and supply both cold-finished and non-standard diameters. MOQ is flexible, so trial quantities are negotiable.
Which standard applies to 5052 round bar?
We supply to ASTM B211 as the primary standard, with EN 754-2 (cold-drawn), EN 755-2 (extruded) and AMS 4114 (H32 bar) available. State the standard you need in the inquiry and we confirm it.
Do you provide MTC, and what are MOQ and lead time?
Yes - an EN 10204 3.1 mill test certificate is issued with every shipment on request, and 3.2 / third-party inspection can be arranged. MOQ is flexible and lead time is about 15–30 days from order confirmation for standard specs.
Is 5052 round bar weldable, and which filler should be used?
It welds well by TIG/MIG. ER5356 is the usual filler; 4043 is generally avoided for 5xxx alloys because it can lower corrosion resistance and weld ductility. Keep the joint area clean and confirm the process with your welding spec.
Request a Quote for 5052 Aluminum Round Bar
Send your application, diameter, length, temper and required standard, and we confirm alloy selection, packing and lead time together. Email GNEE with your inquiry, or state the quantity you need and we will quote MOQ and 15–30 day lead time against the current schedule.
Hot Tags: 5052 Aluminum Alloy Round Bar, China 5052 Aluminum Alloy Round Bar manufacturers, suppliers, factory, Industrial Aluminum Round Rods, 1060 Aluminum Round Bar, polished aluminum rod 6063