Inconel 718 alloy steel spiral welded pipe
specification
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Product Name |
Inconel 718 alloy steel spiral welded pipe |
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Standard |
ASTM B637、AWS D1.1、ASME BPVC Section IX、ISO 15614 |
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Material |
Inconel 718 |
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Outer diameter range |
Small outer diameter tubes: usually between 6mm and 50mm. Medium outer diameter pipe: usually between 50mm and 150mm. |
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Thickness range |
Minimum wall thickness: usually between 1mm and 5mm. Medium wall thickness: usually between 5mm and 15mm. Large wall thickness: usually 15mm to 30mm or more. |
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Length range |
The longest length is 6 meters, and can be customized by customers |
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Error |
±1% |
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Certification |
ISO 9001 ，CE，API |
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Surface treatment |
Pickling, phosphating, sandblasting, electroplating, heat treatment, coating |
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Country of origin |
China |
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Main Applications |
1.Aerospace: Used in the manufacture of aircraft engine components, gas turbines and other high-temperature components due to its ability to maintain strength and stability under extreme temperatures and pressures. |
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2.Oil and Gas Industry: Pipelines, valves and other equipment used in oil and gas extraction and transportation, especially in high temperature, high pressure and corrosive environments. |
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3.Chemical and petrochemical industries: used in reactors, heat exchangers and piping systems. Due to its corrosion resistance and high temperature resistance, it is suitable for handling various chemical media. |
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4.Nuclear energy: Used in nuclear reactor components and cooling systems due to its excellent radiation and corrosion resistance. |
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5.Medical equipment: In some high-end medical equipment, Inconel 718 is also used to make high temperature and corrosion resistant parts. |
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6.Mold manufacturing: Used to make high temperature molds and tools due to its good mechanical properties and wear resistance. |
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Package |
Simple packaging, reinforced packaging, wooden frame, metal frame, pallet, wrapping |
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Payment Term |
TT, LC,Cash, Paypal, DP, DA,Western Union or Others. |
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After-sales service |
1. Quality assurance period 2. Return and exchange policy 3. Delivery and acceptance assistance 4. Customer feedback collection |
Product Display
Chemical Composition
|
alloy |
% |
Ni |
Cr |
Fe |
Mo |
Nb |
Co |
C |
Mn |
Si |
S |
Cu |
Al |
Ti |
|
718 |
min |
50 |
17 |
margin |
2.8 |
4.75 |
|
|
|
|
|
|
0.2 |
0.7 |
|
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max |
55 |
21 |
|
3.3 |
5.5 |
1 |
0.08 |
0.35 |
0.35 |
0.01 |
0.3 |
0.8 |
1.15 |
Mechanical Properties
|
Alloy |
Tensile strength |
Yield strength |
Elongation |
Brinell hardness HB |
|
Solution treatmen |
965 |
550 |
30 |
≤363 |
Production process
.Raw material preparation:
Choose the appropriate Inconel 718 alloy material, which is usually available in the form of round bars or plates.
Analyze the chemical composition of raw materials to ensure they meet relevant standards and specifications.
.Heat treatment:
Heat treatment of raw materials to improve their mechanical properties and weldability. Common heat treatments include solution treatment and aging treatment.
.Molding:
The heat-treated material is formed into a tube blank by mechanical processing or thermal processing. For spiral welded pipes, the coiling process is usually used to roll the sheet into a tube.
.Welding:
The formed tube is spirally welded. During the welding process, the welding parameters (such as current, speed, gas protection, etc.) need to be controlled to ensure the quality and strength of the weld.
After welding, weld inspection is usually performed, including non-destructive testing (such as ultrasonic testing, X-ray testing, etc.).
.Cooling and post-processing:
After welding, the pipe needs to be cooled, usually by natural cooling or water cooling.
Carry out necessary post-treatment, such as removing welding stress, pickling, phosphating, etc., to improve the corrosion resistance and surface quality of the pipeline.
.Surface treatment:
According to customer requirements, surface treatment such as sandblasting, coating or electroplating is carried out to enhance the corrosion resistance and aesthetics of the pipeline.
.Inspection and testing:
Carry out strict quality inspection on finished products, including dimension measurement, appearance inspection, mechanical property test and chemical composition analysis.
Ensure products comply with relevant standards and customer specific requirements.
.Packaging and Delivery:
Properly pack the qualified Inconel 718 alloy steel spiral welded pipes to prevent damage during transportation.