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Manufacturer of ASTM A312 Austenitic Stainless Steel 321 Pipes, ASME SA312 SS TP321 Seamless Piping
Austenitic Stainless Steel TP321 Seamless Pipes
ASTM A312 321 Stainless Steel Seamless Pipe is available in the market in the wide range. Due to its excellent features, its demand is more in amongst industries. This article will let you know what heat treatment is given to it while making and how it is corrosion resistance. So let’s start with 321 corrosion resistance tubes that are prepared under 425 to 9000-degree heat temperature. Under the heat, it is prepared makes it anti-corrosion. Once it is prepared, you can keep in any atmosphere and the best thing is that doesn’t corrode.
Heat treatment of 321-
Annealing means solution treatment of it is done under 9520 to 11200 degree Celsius heat and then it gets cool faster for maximum corrosion resistance.
Stabilizing- its stabilizing is preferred for most critical service circumstances above 4250 Celsius. However, it is given heat up to 870 to 9000 Celsius for at least 1 hour per 25 MM of air cool and thickness.
Stress relief- then last, it is given heat 7000 Celsius for about 2 hours and air cool. Such grades may not be hardened by thermal heat treatment.
Types of packaging-
After heat is given to make ASTM A312 321 Stainless Steel Seamless Pipe, it is wrapped using different packaging materials. First, the bundle of it is made and then kept in wooden boxes and use plastic or iron strips to cover its outer part nicely and safely. Only keeping it in wooden boxes is not a wise idea, you have to warp it using such strips so that it may not fall while delivering to anyone.
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Standard Specification For ASTM A312 / ASME SA312 SS 321 Seamless Pipes
|Specification||ASTM A312 / ASME SA312|
|Standard||ASTM, ASME and API|
|Size||1 / 8" NB - 24" NB|
|Types||Seamless - Hot Rolled / Cold Drawn|
|Length||Single Random, Double Random & Required Length|
|Outer Diameter||6.00 mm OD up to 914.4 mm OD, Sizes up to 24” NB|
|Thickness||0.3mm – 50 mm, SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS, SCH XS|
|Schedule||SCH20, SCH30, SCH40, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS|
|Types||Seamless / Cold Drawn / Hot Finish / Cold Finish|
|Form||Round Pipes, Square Pipes, Rectangular Pipe, Hot Finish Pipe, Cold Drawn pipe,|
|End||Plain End, Beveled End, Treaded|