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| duplex stainless steel ,double metal composite tube |
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| Model No.︰ | - |
| Brand Name︰ | - |
| Country of Origin︰ | China |
| Unit Price︰ | - |
| Minimum Order︰ | - |
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Nowadays, the technology of double metal composite tube has been developed quickly in many countries, especially in Japan, America, UK, and former Russia. Main processes are seamless composite and casting, welding, outer coating metal, laser coating composite and so on. The popular process is nested mechanical metal at present, but there aren`t many consumers due to the limitation of this tube, the reason as follows: first is the joint of tube haven`t been solved well, so the advantage of composite haven`t been taken. Adopting technology of centrifugal casting and rolling to produce double metal products can overcome the problem above and will become the tendency of national and international in the future.
Size and type of centrifugal casting tube
Size
O.D.:100~770
W.T.:10~150mm
L.:1~5m
CRA wall thickness of clad metal is 1/4~1/2 of wall thickness of tube (can make adjustment acc to customer`s requirement
Category
Centrifugal casting tube mainly used in high temperature boiler pipe line, high temperature refining and burning pot, low pressure corrosive resisting or wear resisting pipe line, casting cylinder block and bearing pile etc.
Size of extrusion tube
O.D.:76~219
W.T.:6~30mm
L. :2~10m (length is related to wall thickness)
CRA wall thickness of clad metal is 1/4~1/2 of tube wall thickness (can make adjustment acc to customer`s requirement )
Size of extruding + cold rolling tube
O.D.:25~219
W.T.:2.5~25mm
L.:4~12m ( length is related to wall thickness )
CRA wall thickness of clad metal is 1/4~1/2 of tube wall thickness (can make adjustment acc to customer`s requirement )
Type of double metal used in oilfield
Used in oil well:
Basic layer: carbon structure steel\alloy structure steel (N80\L80\P110 etc. )
Clad metal (CRA): Sup13Cr\0Cr13\ 028\Incoloy825\G3 etc.
Pipe line tube:
Basic layer:carbon steel\alloy steel(X60\L360NCS etc.)
Clad metal (CRA):304L\316L\S31803\028\Incoloy825 etc.,reference API 5L and 5LD standard.
Type of Double metal tube used in Chemical industry
and boiler industry
Instead of general stainless steel double metal tube
Basic layer:carbon structure steel \alloy structure steel(example:ST33\ST37-2\5120 etc. )
Clad metal (CRA):304L\316L\310S etc.
Double metal tube used in boiler industry:
Basic layer:carbon structure steel\alloy structure steel(ASTM A192\ASTM A335-P11 etc.)
Clad metal (CRA):304L\316L\310S\S31803 etc.
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