Piyush steel is the world’s largest heavy duty pipes trader. We are specialized in ASTM A335 GR p12 Alloy Steel Seamless Pipes for process equipment, piping applications, offshore and many other applications. We have a huge range of high strength pipes in stock as well as tougher pipes that are tested under the global industrial norms. These pipes are offered in different standards, specifications, custom dimensions, shapes and altered dimensions for different types of applications.
Like all the heavy duty pipes the focus has been on keeping value whilst maintaining the strength of alloy steel seamless pipes as these have got long cross sections.
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Piyush steel- ASTM A335 GR P12 Alloy Steel Seamless pipes -
It is a fine grain quenched and tempered pipes known for its high strength. These seamless pipes are used in different engineering and piping applications where higher strength is required. One of the major advantages of these pipes over conventional pipes is that the pipes construction costs can be reduced.
Seamless pipes have higher work hardening rates. These are supplied in after attaining higher strength. These seamless pipes have great welding properties suited to all welding operations. The welds of grade must be annealed for attaining higher corrosion resistance ability. Post weld heat treatments will remove strength induced before cold working operations.
The corrosion resistance capability of grade is higher than any standard grades. The resistance ability includes external exposure to fluctuating corrosive environments at nominal temperatures. Furthermore, it has a higher resistance to oxidation in the intermitting service and continuous service in the higher temperatures. The grade has higher machinability; it can be easily machined with standard machines.
ASTM A335 GR P12 Alloy Steel Seamless pipes -
Offer great service in the pitting and crevice corrosive environments. These grades also offer service in the exposure of severe chemicals such as sulfuric acids, nitric acids, phosphoric acids, chlorides and more. Because of the ability of resistance to grain boundary precipitation, these pipes are can be exposed under different environments.
The requirements of the customers having good mechanical properties like toughness, yield strength, excellent fabrication process, it is only possible by ensuring an efficient fabrications technology in the production unit. The effective ways of increasing the strength of pipes are heat treatment and alloying.
In addition to carbon and manganese, the strength of seamless pipes can be improved easily. However, it is also true that the addition of alloying elements in some cases also the mechanical properties. The heat treatment process affects the microstructure and grain structure of the grade. Thus, it results to attain fine grain structure providing elevated strength and toughness of grade compared to standard grades.
We have employed skilled and trained professional team working continuously to regulate the highest level of quality standards. Our employees and defined testing section ensure that only production of the finest quality of products will be done. To check the quality of manufactured pipes these are calibrated with global standards.
Destructive tests -
• Mechanical properties testing
• hardness test
• thermal performance test
• tensile test
• hydro testing
• flattening test
Non-destructive tests -
• positive material identifications (PMI) examination
• micro and macro test
• chemical composition analysis
• intergranular corrosion test (IGC)
• ultrasonic test
• pitting corrosion test
Packaging section -
We pack ASTM A335 GR P12 Alloy Steel Seamless pipes in industrial standard packaging in the form of bundles with end cap supports. The corrosion chances are removed by addition of a thin film of plastic while exporting to the international customers.
We offer industrial pipes in various finishes, tolerance limit, and machining allowances.
|STANDARD||WERKSTOFF NR.||UNS||TRADE NAME|
Specification : ASTM A335 / ASME SA335
Dimension Standard : ANSI B36.10
Outside Diameter : 19.05mm – 114.3mm
Wall Thickness : 2.0mm – 14 mm
Type : Seamless
Form : Round, Square, Rectangular, Oval, Hydraulic Etc
Length : max 16000mm
Delivery Condition : Annealed and Pickled, Polished, Bright Annealed, Cold Drawn
Inspection, Test Reports : Mill Test Certificates, EN 10204 3.1, Chemical Reports, Mechanical Reports, PMI Test Reports, Visual Inspection Reports, Third Party Inspection Reports, NABL Approved Lab Reports, Destructive Test Report, Non Destructive Test Reports
Packing : Packed in Wooden Boxes, Plastic Bags, Steel Strips Bundled, or as per Customers Requests
Specials : Sizes and Specifications other than above can be manufactured on request
|P12||0.05 - 0.15||0.30 - 0.60||0.50 - 1.00||0.025 max||0.025 max||1.00 - 1.50||0.44 - 0.65|
|Element||Tensile Strength, MPa||Yield Strength, MPa||Elongation, %|
|P12||415 min||220 min||30 min|
The full identification of the pipe should be continuously marked down its whole length, including :
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