Alloy Seamless Steel Tube is a type of seamless steel pipe. Alloy pipes are divided into structural seamless pipes and high-pressure heat-resistant alloy pipes. alloy pipe contains more Cr in chemical composition, and has high temperature resistance, low temperature resistance and corrosion resistance.
4130 Alloy Chromoly Steel Pipe
( σs )
( σb )
Beveled end, plain end, vanished, or adding plastic caps to protect the two ends as per customer's requirements
Oiled, Galvanized, Phosphate etc
1. Automotive and mechanical pipes
2. Petroleum cracking pipes
3. High Pressure Boiler Pipe
4. Low and middle pressure fluid transportation pipeline
5. Chemical fertilizer equipment pipes
6. Heat exchanger pipes
1. BK (+C)
No heat treatment after last cold forming process.
2. BKW (+LC)
After last heat treatment there is a light finishing pass (cold drawing)
3. BKS (+SR)
After the final cold forming process the tubes are stress relieve annealed.
4. GBK (+A)
After the final cold forming process the tubes are annealed in a controlled atmosphere.
5. NBK (+N)
After the final cold forming process the tubes are annealed above the upper transformation point in acontrolled atmosphere.
1. Bundle Packing.
2. Plain end or vanished as per customer's request.
3. Wrapped in waterproof paper.
4. Sackcloth with several steel strips.
5.as per customer's requirements
Alloy Seamless Steel Tube is mainly used in engineering and large-scale equipment to transport fluid pipelines, industrial boilers and domestic boilers to transport low and medium pressure fluids, high temperature and high pressure fluid headers and pipelines in power stations and nuclear power plants; used in ship boilers And superheater with I, II pressure tube, etc. High-temperature and high-pressure fluid pipelines on chemical fertilizer equipment; boilers, heat exchangers and fluid pipelines used in petroleum smelters. Used to make various gas and hydraulic cylinders, etc.
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