2033 aluminum alloy is a 2000 series free-machining aluminum grade designed as a lead-free, eco-friendly alternative to traditional 2011. Alloyed primarily with copper, bismuth, and tin instead of lead, 2033 delivers exceptional chip-breaking properties and superior surface finishes in high-speed CNC and screw-machine operations, making it the preferred choice for RoHS and REACH compliant precision manufacturing. Linsy supplies 2033 aluminum bar, tube, and sheet in tempers T3 and T6, with custom sizes, cut-to-length options, and MTC reports available.
Available forms: bar / tube / sheet / coil
Common tempers: T3 / T6
Processing support: CNC machining / precision turning / cut-to-length / surface finishing
Quality documents: MTC report with every order, SGS test reports available on request
2033 aluminum alloy is a 2000 series wrought aluminum grade specifically engineered as a lead-free, eco-friendly free-machining alternative to 2011 aluminum. Instead of lead (Pb), 2033 achieves its machinability through strategic additions of bismuth (Bi) and tin (Sn), combined with a copper (Cu) and magnesium (Mg) base. This lead-free formulation allows 2033 to meet RoHS and REACH environmental compliance requirements while delivering machinability comparable to leaded free-machining grades — producing short, brittle chips and excellent surface finishes in high-speed CNC turning, drilling, and screw-machine operations.
2033 is designed for B2B manufacturers who require both precision machinability and environmental compliance. It is typically supplied in T3 temper (cold-worked and naturally aged) for optimal machinability and T6 temper (solution heat-treated and artificially aged) for higher strength. Its primary product forms are bar, tube, and sheet/coil — the shapes most commonly demanded by precision component manufacturers for automotive, electronics, and industrial threaded-parts production.
Linsy supplies 2033 aluminum in the standard forms required by precision machining buyers. Dimensional specifications and tolerances can be customized to your production requirements.
| Form | Temper | Diameter (mm) | Length (mm) |
|---|---|---|---|
| 2033 Round Bar | T3, T6 | 3 – 200 | 1000 – 6000 |
| 2033 Hex Bar | T3, T6 | 6 – 60 | 1000 – 6000 |
| Form | Temper | Outer Diameter (mm) | Wall Thickness (mm) | Length (mm) |
|---|---|---|---|---|
| 2033 Tube | T3, T6 | 6 – 200 | 0.5 – 20 | 1000 – 6000 |
| Form | Temper | Thickness (mm) | Width (mm) | Length (mm) |
|---|---|---|---|---|
| 2033 Sheet / Coil | T3, T6 | 0.3 – 6.0 | 500 – 2600 | 500 – 16000 |
Additional custom dimensions, alloy-based specifications, and cut-to-length options are available on request.
| Standard | Designation |
|---|---|
| EN | EN AW-2033 / AlCu2BiSn |
| ISO | Al Cu2Bi1Sn1 |
| UNS | A92033 |
2033 aluminum is produced to relevant international standards for wrought aluminum products. Contact Linsy for specific standard compliance requirements for your application.
| Element | Content (%) |
|---|---|
| Copper (Cu) | 2.2 – 3.2 |
| Bismuth (Bi) | 0.5 – 1.5 |
| Tin (Sn) | 0.8 – 1.5 |
| Magnesium (Mg) | 0.2 – 0.5 |
| Silicon (Si) | 0.5 Max |
| Iron (Fe) | 0.7 Max |
| Zinc (Zn) | 0.5 Max |
| Others, each | 0.05 Max |
| Others, total | 0.15 Max |
| Aluminum (Al) | Balance |
| Property | Minimum |
|---|---|
| Tensile Strength, Ultimate | 360 MPa |
| Tensile Strength, Yield | 280 MPa |
| Elongation | 8% |
| Property | Minimum |
|---|---|
| Tensile Strength, Ultimate | 380 MPa |
| Tensile Strength, Yield | 300 MPa |
| Elongation | 6% |
Note: Mechanical property values are indicative for standard product forms. Actual values may vary depending on product form, dimensions, and production lot. Request MTC reports for lot-specific data.
| Temper | Condition | Best For | Key Trade-off |
|---|---|---|---|
| 2033-T3 | Cold-worked, naturally aged | Maximum machinability, best chip-breaking, tight-tolerance CNC turning and drilling | Slightly lower strength than T6 |
| 2033-T6 | Solution heat-treated, artificially aged | Higher strength and hardness, structural threaded parts, load-bearing precision components | Slightly reduced machinability compared to T3 |
2033 replaces lead (Pb) with bismuth (Bi) and tin (Sn) to achieve free-machining performance. This lead-free composition enables full RoHS and REACH compliance — a critical requirement for precision components exported to EU and North American markets where leaded alloys face increasing regulatory restriction.
During high-speed CNC turning, drilling, and screw-machine operations, 2033 produces small, brittle, and easily evacuated chips. This reduces tool clogging, minimizes machine downtime for chip clearance, and improves surface finish consistency across high-volume production runs.
2033 delivers ultimate tensile strength above 360 MPa in T3 temper and higher in T6 temper. Yield strength exceeds 280 MPa — placing it above many 6000 series alloys in mechanical performance while retaining its free-machining advantage.
2033 consistently produces a bright, smooth surface finish directly from the machine tool. This reduces or eliminates the need for secondary polishing operations, saving time and cost in precision component manufacturing.
Like most 2000 series aluminum alloys, 2033 is not recommended for fusion welding. For applications requiring both machinability and weldability, consider 6000 series alloys. Mechanical joining methods are preferred for 2033 components.
Linsy provides a Mill Test Certificate (MTC) with every 2033 aluminum order. The MTC includes lot-specific chemical composition and mechanical property test results, traceable to raw material heat numbers.
Additional third-party testing through SGS is available on request for:
Linsy’s quality management system is certified to ISO 9001, with environmental management to ISO 14001 and occupational health and safety to ISO 45001.
| Feature | 2033 Aluminum | 2011 Aluminum |
|---|---|---|
| Free-Machining Element | Bismuth (Bi) + Tin (Sn) | Lead (Pb) + Bismuth (Bi) |
| Lead Content | Lead-free | Contains lead |
| Environmental Compliance | RoHS & REACH compliant | May be restricted under RoHS |
| Machinability Rating | High (comparable to 2011) | Highest (~90%+) |
| Common Tempers | T3, T6 | T3, T4, T6, T8 |
| Typical Applications | EU/NA export components, eco-regulated parts | General precision machining, regions without lead restrictions |
Choose 2033 when your production requires both precision machinability and lead-free environmental compliance. Choose 2011 for maximum machinability in regions and applications where lead content is not restricted. For more detail on 2011, visit our 2011 aluminum alloy product page.
Linsy Aluminum is a Shenzhen-based aluminum factory with more than 20 years of industry experience. We supply 2033 aluminum and the full 1000–8000 series alloy range in bar, tube, sheet, coil, wire, and profile product forms — with broad standard-specification inventory and low-MOQ custom production for non-stock items.
Our in-house processing capabilities include CNC machining, laser cutting, TIG and MIG welding, and surface finishing (anodizing, polishing). Custom sizes, cut-to-length support, and mixed-specification orders are all standard services. Typical custom lead time ranges from 10 to 60 days depending on alloy, dimensions, and processing requirements.
Every order ships with an MTC report. SGS test reports for chemical composition, mechanical properties, RoHS/REACH compliance, and dimensional inspection are available on request.
Yes. 2033 aluminum achieves its free-machining performance through bismuth (Bi) and tin (Sn) additions rather than lead (Pb). It is a lead-free alloy designed for RoHS and REACH compliance.
2033 delivers machinability comparable to 2011 in most chip-breaking and surface-finish metrics. 2011 may have a slight edge in maximum machinability rating, but 2033 provides the advantage of lead-free environmental compliance.
Linsy supplies 2033 in T3 temper for optimal machinability and T6 temper for higher strength. T3 is cold-worked and naturally aged; T6 is solution heat-treated and artificially aged.
2033 is not recommended for fusion welding. Like most 2000 series alloys, its high copper content and free-machining additions make it prone to hot cracking. Use mechanical joining methods.
2033 is available in round bar, hex bar, tube, sheet, and coil. Custom dimensions and cut-to-length options are available on request.
Standard inventory items ship promptly. Custom sizes and specifications typically require 10 to 60 days depending on alloy, dimensions, and processing requirements.
Yes. Every 2033 aluminum order includes a Mill Test Certificate (MTC) with lot-specific chemical composition and mechanical property results.
Yes. 2033’s lead-free composition enables full RoHS and REACH compliance. SGS RoHS and REACH compliance reports are available on request for additional third-party verification.
Linsy supports low-MOQ ordering for standard specifications and custom production. Contact us with your requirements for a specific MOQ quotation.
Yes. Linsy handles mixed-specification orders across multiple product forms and sizes for project-based purchasing.
We accept T/T (bank transfer) and L/C (letter of credit). Payment terms are negotiated based on order size and customer relationship.
Contact us through the inquiry form on this page or email us directly with your required alloy, temper, dimensions, quantity, and any processing requirements. Our sales team will respond with a quotation within 24 hours.
We ship by sea freight (FCL and LCL), air freight, and express courier (DHL, FedEx, UPS). Shipping method depends on order size, weight, and delivery urgency.
Linsy Advantages
Linsy Aluminum is a leading supplier of aluminum processing products, serving diverse industries including aerospace, general engineering, automotive, marine, shipbuilding and other specialized industrial applications.
We are committed to maintaining the highest standards of quality and environmental responsibility, as demonstrated by our certifications: ISO 9001:2008， ISO 14001:2004 and SGS.
