2011 Aluminum Strip — Free-Machining AlCu6BiPb Precision Strip | HXM
A free-machining (Al-Cu + Pb/Bi) aluminum alloy rolled into precision strip by a China AS9100D mill. 2011-T3/T8 strip in stock, 0.2–6.0 mm thick, EN 10204 3.1 with every lot.
📦 MOQ 200 kg stock / 500 kg custom · ⏱️ Lead 12–30 days · 📜 EN 10204 3.1 · 💬 Quote in 24 h
B2B tailored pricing — not a catalog price. We quote per your exact alloy, temper, thickness, width, quantity & finish against current market. Typical detailed quote within 24 h; send a drawing/PDF for priority.
MOQ
200 kg stock / 500 kg custom
Lead time
12–30 days
Cert
EN 10204 3.1
Quote
within 24 h
AS9100D
Aerospace quality system
EN 10204 3.1
MTC with every lot
ISO 9001
Quality management
ASTM B221
Spec compliance
- 2011 stock in multiple tempers / sizes
- Drawing & cut-to-length in-house
- FOB / CIF / DDP worldwide
- CHALCO / Hydro / Rio Tinto primary ingot
Available forms, sizes & tolerances (HXM stock)
All tolerances meet / exceed ASTM B209 & EN 485 for rolled strip; thickness per ASTM B209, width per EN 755. Tighter edge/surface on request. Stock tempers: T3, T6, T8.
Strip · Slit coil · Bright
| Dimension | Standard stock range | Tolerance | Note |
|---|---|---|---|
| Thickness | 0.2 – 6.0 mm | ±0.02 to ±0.08 mm | Per ASTM B209 |
| Width | 5 – 1200 mm | ±0.05 to ±0.20 mm | Slit edge |
| Coil ID / OD | 300 / 1000 mm | ±10 mm | Per spec |
| Surface | Mill / bright | — | Per application |
| Edge | Slit / deburred / round | — | Special on request |
| Coil weight | 50 – 2000 kg | ±2% | Custom packaging |
Quick Answer for procurement
2011 aluminum (UNS A92011 / EN AW-2011 / AlCu6BiPb) is the best free-machining aluminum alloy, with 5.0–6.0% Cu plus free-cutting Lead & Bismuth (0.20–0.60% each), density 2.82 g/cm³, tensile 310–380 MPa (T3/T8). It delivers the highest machinability of any aluminum grade — small brittle chips, excellent finish and long tool life — for high-volume CNC turned and screw-machine parts. It is not fusion-weldable (Pb/Bi cause cracking/porosity). HXM stocks strip in T3/T4/T6/T8, lead time 12–30 days, MOQ 200 kg stock / 500 kg custom, quote within 24 h.
Why specify 2011 aluminum strip?
- Best machinability of all aluminum alloys: Pb + Bi form short, brittle chips — faster feeds, better finish, longer tool life.
- Excellent surface finish: ideal for precision turned components and screw-machine products.
- Good strength-to-weight: 310–380 MPa tensile at 1/3 steel weight.
- Stable, repeatable dimensions: great for high-volume automatic machining.
- Documented & certified: ASTM B211/B221, EN 573/755, EN 10204 3.1 MTC.
2011 is the global standard for free-machining aluminum used in connectors, fasteners, fittings, valve bodies and precision instrument parts where machinability and finish dominate over corrosion resistance.
2011 aluminum strip specifications
Chemical composition
| Element | Min | Max | Function |
|---|---|---|---|
| Cu (Copper) | 5.0 | 6.0 | Primary strengthener (Al-Cu) |
| Pb (Lead) | 0.20 | 0.60 | Free-machining additive (chip break) |
| Bi (Bismuth) | 0.20 | 0.60 | Free-machining additive (with Pb) |
| Si (Silicon) | — | 0.40 | Impurity |
| Fe (Iron) | — | 0.70 | Impurity |
| Zn (Zinc) | — | 0.30 | Impurity |
| Mn (Manganese) | — | 0.05 | Impurity |
| Mg (Magnesium) | — | 0.05 | Impurity (kept very low) |
| Others (each / total) | — | 0.05 / 0.15 | — |
| Al (Aluminum) | Balance | — | Base |
Mechanical properties by temper
| Temper | Tensile (MPa) | Yield 0.2% (MPa) | Elong. (%) | Typical use |
|---|---|---|---|---|
| O (annealed) | 125–180 | ≤75 | 15–20 | Soft, formable stock |
| T3 | 310–330 | 170–190 | 12–15 | Screw-machine stock |
| T4 | 300–330 | 160–180 | 12–15 | General machined parts |
| T6 | 330–360 | 240–270 | 9–12 | Higher strength |
| T8 | 360–380 | 270–300 | 8–10 | Max strength + finish |
Physical & thermal properties
| Property | Value | Notes |
|---|---|---|
| Density | 2.82 g/cm³ | ~35% lighter than steel |
| Melting range | 510–640 °C | Solution treat ~500–520 °C |
| Electrical conductivity | 40% IACS (T8) | Good for an Al-Cu alloy |
| Thermal conductivity | 150 W/m·K | — |
| Modulus of elasticity | 71 GPa | ~26% of steel stiffness |
| Coeff. thermal expansion | 23.0 × 10⁻⁶ /°C | 20–100 °C |
Comparison — which to choose?
| Property | 2011 | 6061 | 2024 | 7075 |
|---|---|---|---|---|
| Machinability (free-cutting) | ★★★★★ Best | ★★★ | ★★ | ★★★ |
| Weldability (fusion) | ❌ Not weldable | ✅ Good | ❌ Poor | ❌ Poor |
| Strength (T8/T6, MPa) | 360–380 | 310 | 450 | 540 |
| Corrosion resistance | ⚠ Fair (Pb/Bi) | ✅ Good | ❌ Poor | ⚠ Fair |
| Best for | High-volume CNC turned parts | Welded struct. | Aircraft skin | Aero high-strength |
Where 2011 strip is used
Typical uses: screw-machine & CNC-turned components · connectors, terminals & contacts · precision nuts, bolts & fasteners (non-structural) · valve bodies & fittings · pistons & spacers · instrument & electronics hardware · camera & optical parts · automatic-lathe products. 2011 is chosen where high-volume machining speed and surface finish matter most; for welded assemblies use 6061, for higher strength use 2024. Note: 2011 is not for food contact or potable water (Pb/Bi).
Buyer pain points — and how HXM solves each
Pain #1
6061 / 7075 machine slowly and give poor chip control on auto-lathes.
HXM solution
2011 free-machining bar/rod runs faster with short brittle chips and superior finish — the right alloy for high-volume turned parts.
Pain #2
Assumed weldable like 6061 → cracking — 2011 is not fusion-weldable.
HXM solution
We flag up-front: 2011 (Pb/Bi) is for machined/fastened parts. For welded structures we supply 6061/6082. Welding guide →
Pain #3
Need a food/ROHS-compliant part — 2011 contains Lead & Bismuth.
HXM solution
We advise a lead-free alternative (e.g. 6023 / 6262) for food or EU ROHS use; 2011 is for general industrial precision parts.
Pain #4
Long lead from western mills — 90+ days on free-machining stock.
HXM solution
2011 T3/T8 stock across forms; 12–30 day lead, cut-to-size to your drawing.
Pain #5
No material certs — need EN 10204 3.1 for machined parts.
HXM solution
Full EN 10204 3.1 + AS9100D mill cert per lot. Machining guide →
Where HXM 2011 strip is already specified (representative cases)
Illustrative program summaries — replace with your real, approved case studies before publishing.
CNC-turned connectors from 2011-T3 bar
- 2011-T3 bar 12–40 mm
- Qty 1.2 t, auto-lathe
- EN 10204 3.1
- Lead 18 days · CIF Hamburg
✓ Cycle time −22% vs 6061
Screw-machine pins 2011-T8
- 2011-T8 bar 8–20 mm
- Qty 800 kg
- Bright drawn + film
- Lead 15 days · DDP Shenzhen
✓ Reordered 4× in a year
Valve bodies 2011-T3
- 2011-T3 bar 25–60 mm
- Qty 600 kg
- CNC turned
- Lead 16 days · FOB Shanghai
✓ Met finish spec first pass
2011 strip RFQ checklist — accurate quote in 24 hours
- Alloy & UNS — 2011 / UNS A92011 / EN AW-2011 (AlCu6BiPb)
- Temper — O / T3 / T4 / T6 / T8
- Form & size — 0.2–6.0 mm thick, 5–1200 mm wide
- Surface — mill / bright / drawn
- Quantity — kg or pieces (stock vs custom MOQ)
- Tolerance & straightness — standard or special
- Standard — ASTM B211/B221/B209 / EN 573/755
- Destination & Incoterms — FOB / CIF / DDP + port
📧 Email mailto:[email protected] or WhatsApp +86 137 6190 6384. Drawing/spec PDF gets priority.
Frequently asked questions (2011 aluminum strip)
Talk to a 2011-aluminum-strip specialist
From prototype to production — send your drawing, get a quote in 24 h.
HXM Aluminum · AS9100D-certified aerospace aluminum strip supplier · 2011 Aluminum Strip
