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3A21 aluminum tube

antirust aluminium alloy

（Old brand：LF21）

 hot-sale product：
3A21-O aluminum tube
3A21-H112 aluminum tube
sales hotline: +86 13021753983
Type of 3A21 aluminum pipe 3A21 Production Standard 3A21 Supply Status
✔  Extruded aluminum tube ✔  GBnational standard ✔  O
✔  Pulling aluminum pipes ✔  ENeuropean standard ✔  H112
✔  seamless aluminium tubing ✔  ASTM American Standard ✔  H14
✔  Thin-walled aluminum tube   ✔  H24
✔  Thick walled aluminum pipe   ✔  H18
✔  Forged aluminum pipe    
✔  Large diameter aluminum pipe    

 

 

 

 

 

 

 

3A21 Characteristics

3A21 characteristic

 

image.png  non-heat-treatable alloy

image.png  antirust

image.png  processability

image.png  plasticity

image.png  weldability

image.png  Not easily deformed

image.png  corrosion resistance

 

 

sales hotline: +86 13021753983

 

3A21 extruded aluminum pipe

3A21 Pure aluminum tube

 

outside diameterΦ：5mm~600mm

Quality advantages: smoothness, straightness, high precision, etc

Provide services such as retail, cutting, export packaging, etc

 

sales hotline: +86 13021753983

 

3A21 seamless aluminum pipe

3A21 Extruded aluminum tube

 

outside diameterΦ：8mm-600mm

Quality advantages: smoothness, straightness, high precision, etc

Provide services such as retail, cutting, export packaging, etc

 

sales hotline: +86 13021753983

 

 

3A21 Chemical composition

3A21 Chemical composition

silicon Si：       ≤0.60

cutter Fe：      ≤0.70

copper Cu：     ≤0.20

manganese Mn：    1.0-1.6

magnesium Mg：    ≤0.05

chromium Cr：      ——

zinc Zn：     ≤0.10

titanium Ti：      ≤0.15

zirconium Zr：       ——

aluminium Al：      margin

 

sales hotline: +86 13021753983

 

 

 

3A21 Performance

3A21 Performance

tensile strengthRm/MPa： 120

yield strengthRp0.2/MPa： ——

Elongation rate%： 16%

hardness： ——

Thermal expansion coefficient(20-100°C)μm/m·k： ——

Melting point range(°C)： ——

conductivity20°C(68°F)(%IACS)： ——

resistivity20°C(68"F)Ωmm2/m： ——

density(20°C)(g/cm3)： 2.75

 

sales hotline: +86 13021753983

 

 

Purchase process

Professional experience makes communication easier, focusing on quality makes products more competitive

  • 1.Sign a contract and reach a consensus
  • 2.Blanking inspection, packaging and shipping

OUR ADVANTAGES

Oversized inventory ensures quality

Years of production experience

From placing an order to shipping out of the warehouse, we undergo three rounds of quality inspection to ensure that the qualified rate of the finished product is above 100%. We have a large amount of inventory and can provide customers with sufficient supply, so that they no longer worry about the crisis of out of stock or out of stock.

Timely delivery to save costs

Source manufacturer, customizable as needed

We promise that after the customer places an order, the spot products will be shipped on the same day. Yangdong Aluminum Industry is committed to providing high-quality products and satisfactory products to customers both domestically and internationally.

Featured service experience

Kind customer service team hotline to serve you

We promise that for every order, Yangdong Aluminum will promptly track and ensure that customers can receive goods safely, constantly listen to their opinions and suggestions, and reflect on our own problems. Make customers feel comfortable and at ease.