bong da truc tiep hom nay Brazing Strip | Clad Coil & Fin Tube Forming Manufacturer | Chalco bong6951 ty so bong da truc tiep alloyis purpose-built for brazing. With optimized Mg–Si and trace additions, it combines excellent formability, corrosion resistance, and thermal stability at brazing temperatures, making it the preferred core alloy for clad brazing sheets and coils used in automotive radiators, condensers, evaporators, and in aerospace honeycomb structures.
- Superior brazing performance:Ensures reliable joint quality in radiators, condensers and other heat exchanger systems.
- Excellent formability and stability:Supports deep drawing and precise forming, also ideal for lightweight honeycomb core production.
- Targeted applications:Widely used as the core alloy inbrazing clad sheets and coils, as well as in aerospaceBrazed bong da trucandBrazed truc tiep bong da hd Sheet Application.
Specifications & General Information of 6951 ty so bong da truc tiep
Grade:6951; ENAW-AlMgSi0.3Cu; ENAW-6951
Specification:EN 573-3/ DIN EN 573-3:2022-09/ BS EN 573-3:2019/ NBN EN 573-3:2019; View full[Technical Parameters]
Available product forms:View[Stock & Tolerances]
- 6951 Composite Brazing Sheet / Coil
- 6951 Sheet, Coil, Strip & Foil for Brazing Fins
- 6951 Core Alloy for Brazing Clad Materials
- 6951 Honeycomb Core Material
6951 Composite Brazing Sheet & Coil
Core alloy:6951 ty so bong da truc tiep
Cladding:4343, 4045,4047(optional 7072 layer)
Typical use:radiators, condensers, evaporators, HVAC heat exchangers
bong da truc tiep hom nay Brazing
Contact us now
-
6951 + 4343/4045 Brazing Layer
6951 core clad with 4343 or 4045 brazing alloy, the most common configuration for automotive radiators and condensers.
-
6951 + 3003 + 4343
3003 layer improves corrosion resistance and formability, with 4343 brazing cladding. Common in heat exchangers for humid environments.
-
6951 + 7072 + 4343/4045
7072 sacrificial corrosion layer between 6951 core and 4343/4045 brazing alloy, offering superior resistance in humid and corrosive environments.
-
6951 + 4004 Brazing Layer
4004 brazing cladding with a lower melting point, used for high-temperature and specialty heat exchanger applications.
-
6951 Multi-layer Composite
Multi-layer clad structure combining brazing, corrosion, and reinforcement layers, often applied in aerospace and high-performance thermal systems.
-
6951 Composite Tubes (custom option)
Lightweight and durable tubular brazing materials, combining 6951 core with brazing cladding, available on request for specialized heat exchanger designs.
6951 Strip & Foil for Brazing Fins
Form:slit strip and thin foil for brazed fins
Typical thickness:0.08 / 0.10 / 0.15 / 0.32mm (custom on request)
Use:radiator, condenser, evaporator fins in auto & HVAC
Contact us now
6951 Core Alloy for Brazing Clad Materials
Core alloy:6951 (brazing base material)
Typical build-up:3-layer or 5-layer clad configurations
Use:automotive radiators, condensers, evaporators, intercoolers
Contact us now
6951 Honeycomb Core
Form:thin foil for honeycomb core manufacturing
Attributes:low weight, good corrosion resistance, consistent bonding in brazing
Use:aerospace panels, flooring, partitions, interior structures
Contact us now
6951 ty so bong da truc tiep Technical Parameters (Chemical Composition / Mechanical Properties / Thermal Properties)
6951 ty so bong da truc tiep belongs to the 6000 series alloys, meaning its primary alloying elements are magnesium and silicon. Its improved version contains 97.2% ty so bong da truc tiep, with primary alloying elements including magnesium, silicon, and iron, and additions of copper, manganese, and zinc. This alloy increases strength to enhance sag resistance and is heat-treatable (the metal becomes stronger through heating and cooling).
| Chemical Composition (%), 6951 (O) | |||||||||
| Value | Si | Fe | Cu | Mn | Mg | Zn | Other (each) | Other (total) | Al |
| Min | 0.20 | N/A | 0.15 | N/A | 0.40 | N/A | N/A | N/A | Rest |
| Max | 0.50 | 0.80 | 0.40 | 0.10 | 0.80 | 0.20 | — | — | Rest |
| 6951 ty so bong da truc tiep Mechanical Properties | 6951-O | 6951-T6 | ||
| Metric | English | Metric | English | |
| Hardness, Brinell | 28 | 28 | 82 | 82 |
| Tensile Strength, Ultimate | 110 MPa | 16000 psi | 270 MPa | 39200 psi |
| Tensile Strength, Yield | 40.0 MPa | 5800 psi | 230 MPa | 33,400 psi |
| Elongation at Break | 30% | 30% | 13% | 13% |
| Modulus of Elasticity | 69.0 GPa | 10000 ksi | 69.0 GPa | 10000 ksi |
| Poissons Ratio | 0.33 | 0.33 | 0.33 | 0.33 |
| Shear Modulus | 26.0 GPa | 3770 ksi | 26.0 GPa | 3770 ksi |
| Shear Strength | 75.0 MPa | 10900 psi | 180 MPa | 26100 psi |
| 6951 ty so bong da truc tiep Thermal Properties | 6951-O | 6951-T6 | 6951-O | 6951-T6 |
| Metric | English | Metric | English | |
| CTE, linear | 23.4-25 µm/m-°C | 13.0-13.9 µin/in-°F | 23.4-25 µm/m-°C | 13.0-13.9 µin/in-°F |
| Specific Heat Capacity | 0.890 J/g-°C | 0.213 BTU/lb-°F | 0.890 J/g-°C | 0.213 BTU/lb-°F |
| Thermal Conductivity | 213 W/mK | 1480 BTU-in/hr-ft²-°F | 197 W/mK | 1370 BTU-in/hr-ft²-°F |
| Melting Point | 616 - 654 °C | 1140 - 1210 °F | 616 - 654 °C | 1140 - 1210 °F |
| Solidus | 616 °C | 1140°F | 616 °C | 1140°F |
| Liquidus | 654 °C | 1210°F | 654 °C | 1210°F |
Application field of Chalco 6951 ty so bong da truc tiep products
- Automotive Radiators:Used as the core alloy in clad brazing sheets (6951 core + 4343/4045 cladding), ensuring efficient heat transfer and reliable joint quality.Brazed Composite truc tiep ket qua
- Condensers & Evaporators:Supplied in strip and foil form as fin stock, providing excellent formability and thermal conductivity for compact designs.3003 4343 H14/H16 Auto Brazing Clad
- Charge Air Coolers & Oil Coolers:Applied in multi-layer clad structures (e.g., 4343/7072/6951) for enhanced corrosion resistance in humid or aggressive environments.
- HVAC & Industrial Heat Exchangers:Reliable performance in air conditioning systems, refrigeration, and industrial cooling equipment.
- Aerospace Honeycomb Panels:6951 foil is used as honeycomb core material in aircraft wings, flooring, partitions, and interior panels, valued for its lightweight and strength-to-weight ratio.
For detailed stock sizes, supply requirements and dimensional tolerances, please refer to theSupply & Stock section.
Supply, Stock & Manufacturing Accuracy
Chalco supplies 6951 ty so bong da truc tiep fin stock, strip, and foil with stable availability and strict dimensional accuracy. Below aretypical stock examplesfrequently produced; other sizes can be slit or rolled to order.
- Inner Coil Diameter:150–200 mm
- Maximum Coil Weight:≤ 20 kg per coil
- Winding:Coil must be wound on a spool/mandrel
| Typical Stock (Examples) | |||
| Thickness (mm) | Width (mm) | Temper | Notes |
| 0.08 | 127.3 | O (soft) | Fin/strip; slit-to-width available |
| 0.08 | 187.8 | O (soft) | Fin/strip |
| 0.10 | 86 | O (soft) | Fin stock |
| 0.10 | 97 | O (soft) | Fin stock |
| 0.10 | 117 | O (soft) | Fin stock |
| 0.10 | 128 | O (soft) | Fin/strip |
| 0.10 | 129.8 | O (soft) | Fin/strip |
| 0.10 | 142.6 | O (soft) | Fin/strip |
| 0.10 | 144.8 | O (soft) | Fin/strip |
| 0.10 | 159.7 | O (soft) | Fin/strip |
| 0.10 | 214.6 | O (soft) | Wide fin/strip |
| 0.10 | 240.5 | O (soft) | Wide fin/strip |
| 0.15 | 101.9 | O (soft) | Reinforced fin/strip |
| 0.15 | 144.8 | O (soft) | Reinforced fin/strip |
| 0.20 | 142.6 | O (soft) | Strip |
| 0.20 | 144.8 | O (soft) | Strip |
| 0.30 | 10 | O (soft) | Narrow strip |
Note: Sizes above are frequent production examples. Other widths within 10–240.5 mm can be customized on request.
Manufacturing Accuracy – Thickness
| Thickness, mm | Tolerance, mm |
| Above 0.07 to 0.08 (incl.) | ±0.007 |
| Above 0.08 to 0.10 (incl.) | +0.005 / −0.01 |
| Above 0.10 to 0.12 (incl.) | ±0.01 |
| Above 0.12 to 0.15 (incl.) | +0.005 / −0.015 |
| Above 0.15 to 0.30 (incl.) | ±0.015 |
Manufacturing Accuracy – Width
| Width, mm | Tolerance, mm |
| 10–200 | ±0.15 |
| Above 200 to 300 | ±0.20 |
| Above 300 to 450 | ±0.30 |
6951 vs Other Alloys
When selecting fin stock or brazing sheet core materials, 6951 is often compared with other ty so bong da truc tiep alloys such as 3003, 6061, and 7072. The table below highlights the main differences:
| Alloy | Main Characteristics | Typical Applications |
| 6951 | Optimized for brazing; good formability; high sag resistance; stable during high-temperature brazing | Core alloy for clad brazing sheet, fin stock, aerospace honeycomb foil |
| 3003 | Manganese alloy; excellent corrosion resistance; softer and easier to form; not heat-treatable | Fin stock for HVAC, roofing, siding, beverage cans |
| 6061 | High strength; weldable; heat-treatable; not typically used as fin stock | Structural applications, automotive parts, aerospace components |
| 7072 | Used as a cladding layer; sacrificial corrosion protection; not standalone core alloy | Protective layer in multi-layer brazing sheets |
For more details, see also our pages on 3003 ty so bong da truc tiep and6061 xem truc tiep bong da Alloy.
FAQ on 6951 ty so bong da truc tiep Alloy
Q: Can 6951 be used as a structural alloy?
A: No. 6951 is mainly designed as a brazing core alloy. It is not intended for high-load structural parts like 6061 or 2024.
Q: What is the difference between 6951 and 3003 fin stock?
A: 3003 offers higher corrosion resistance but is softer, while 6951 provides better sag resistance and brazing stability in automotive heat exchangers.
Q: In what temper is 6951 usually supplied?
A: Typically in O (soft) condition for fin stock and clad brazing sheet, to ensure formability during brazing. Other tempers may be available on request.
Q: Is 6951 still covered by EN standards?
A: EN 573-3 still lists EN AW-6951 for chemical composition. However, for finstock, EN 683 tables no longer include 6951, so mechanical values are usually defined by supplier specifications.
Request a Quote
Chalco supplies6951 ty so bong da truc tiep alloyin brazing sheet, coil, strip, foil, and honeycomb core forms. With stable quality, custom dimensions, and strict supply requirements, we support your automotive and aerospace projects.
Contact us now to get technical data sheets, free samples, or a quick quotation tailored to your needs.
Chalco can provide you the most comprehensive inventory of ty so bong da truc tiep products and can also supply you customized products. Precise quotation will be provided within 24 hours.
Get a quote