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Help CenterASTM A789/A789m Uns S31803 Duplex Steel Pipe Seamless Tubes ASTM A790/A790
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Product Name |
ASTM A789/A789m UNS S31803 Duplex Steel Pipe Seamless Tubes |
|
|
Size
|
OD |
3.18-810mm |
Thickness |
0.2-40mm |
|
Max Length |
50m |
|
Usage |
Gas Industry, Oilfield, Thermal power, Oil industry, Shipbuilding, Petrochemical, Tanker, Nuclear , etc |
|
Surface |
Pickling and annealing,pickling and annealing+polishing+ EP(Electricity polish) |
|
End |
Plain, Beveled with caps |
|
Package |
Reinforced plywood case bysted angle bar, Playwood cased Plastic bags packing, Condenser, heat exchanger tube packing, U-tube packed with wooden cases. |
|
Inspection |
With Hydraulic Testing, Ultrasonic testing or X-ray Test |
|
TPI |
TUV, SGS, BV, Lloyd's, etc. |
|
Payment: |
L/C at sight, L/C 180 days, T/T, D/P, OA, Western Union, |
|
Port of Shipment |
Shanghai port in China |
|
Standard: ASTMA789M/789
Material/Steel Grade: S31803, S32205, S32750
Application: Seamless Duplex Stainless Steel Tubing for General Service
Size: OD: 19.0~60.5mm WT: 1.2~5.0mm
Standard: ASTM A789M/789
Material/Steel Grade: S31803, S32205, S32750
Application: Seamless Duplex Stainless Steel Tubing for General Service
Size: OD: 19.0~60.5mm WT: 1.2~5.0mm
This standard covers the manufacturing requirements for stainless steel and other austenitic stainless steel straight and spiral seam pipes.
Pipes are typically used under general service conditions and are suitable for general corrosive environments and low or high-temperature service.
This standard covers the manufacturing requirements for duplex (austenitic-ferritic) stainless steel seamless and welded pipe.
Pipes are usually used in high-temperature, high-pressure, or corrosive environments with higher corrosion resistance and mechanical strength.
The key differences are the type of material and application area of the pipe. ASTM A789/A789M generally covers austenitic stainless steels and applications under general service conditions, while ASTM A790/A790M covers duplex stainless steels and more severe service environments and requirements. The choice of which standard to use depends on the specific project's needs, including required pipe material properties, working environment conditions, and budget, among other factors. You can contact us directly to answer your questions.
Factory Workshop & Production Lines
The ASTM A789 UNS S31803 tubing refers to seamless and welded tubing manufactured in accordance with ASTM A789/ASTM A1789M, which contains approximately 50% ferrite and 50% austenite. The stress corrosion resistance of ASTM A789 in neutral chloride solution and H2S is better than that of 304L, 316L austenitic stainless steel, and 18-5mo type duplex stainless steel. The UNS S31803 tubing is especially suitable for the temperature range of -50°F/+600°F. It may also be considered for applications beyond this temperature range, but there are some limitations, especially when applied to weld structures.
Company Introduction
Zhejiang Zhongzheng stainless steel Co., Ltd. is located in Wenzhou City Zhejiang province, about one hour to Jiangsu, Shanghai and Hangzhou.
ZHONGZHENG is professional China Stainless Steel Pipe Manufacturer and Stainless Steel Tube Suppliers
, the company is specializing in industrial stainless steel welded tubes and special alloys tubes, with an annual production capacity of up to 7,000 tons.
The tubes are produced to conform to GB, ASTM/ASME, JIS, DIN, EN, GOST and ISO standards.
Some special requirements from clients can also be met. Due to excellent technicians, advanced production equipment, satisfactory inspection and testing equipment and perfect quality assurance system,
Send Inquiry to This Supplier
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