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321H Pipes
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We could produce 321H pipes,321 H pipes,321H seamless pipes,321H welded pipes,321H boiler pipes, 321H heat exchanger pipes,321H Capillary pipes,321 H Thermocouple pipes,321H Superheater pipes and reheater pipes,321H condenser pipe,321H finned pipes,321 H furnace pipes,321H instrumentation pipes,321H Evaporator pipes,321H honed pipes,321 H coiled pipes,321H Precision pipes,321H High pressure pipes,321H hydraulic pipes from china

The outer diameter of 321H pipes that we could do is from 0.4MM to 850MM,The thickness of 321H that we could do is from 0.12MM to 100MM

As per surface finish of 321 H pipes, we could do pickled and polish into bright surface as per the requirement of the clients, also for bright surface of 321H pipes, we could meet 2D finish.No. 4 Finish,No. 6 Finish,No. 7 Finish as per the requirement of the clients

321H is a general purpose austenitic stainless steel


The chemical composition of 321H pipes is as follows

Element

Content (%)

Iron

Balance

Chromium

17-19

Nickel

9-12

Manganese

2

Silicon

1

Titanium

0.35

Phosphorous

0.045

Carbon

0.04-0.10

Sulfur

0.03


The mechanical propery of 321 H seamless pipes is as follows

Properties

Imperial

Tensile  strength

69600 psi

Yield  strength

29700 ksi

Elongation  at break

29%

Hardness,  Brinell

≤187


As per heat treatment of 321H pipes, we could do solution treatment, annealed treatment as per the requirement of the clients

As per material of 321H pipes, our raw material has been melted by  EAF+VOD-ESR methods

We produce 321H seamless pipes and weled pipes as per the standard of ASTM B729 and ASTM B464

In order to control the quality of 321 H seamless pipes and weled pipes, we will do Positive material identification (PMI),Visual inspection,Dimensional inspection.Laser micrometer inspection,Destructive testing( includes tensile, hardness, bending, flattening, flare and metallurgical tests),ultrasonic testing and pressure testing,Liquid Penetrate testing as per the requirement of the clients

Our 321H pipes are packed wooden crates lined with wax craft paper, tri-wall clay-coated reinforced cases

Our 321H seamless pipe and weled pipes are widely used in many industry :Vacuum Kettle Dryer.Cistern Piler.Vacuum Strainer,Agitators.Chemical Reactor and Systems,Expansion Tank.Water Tank,Lifting Station Tank,Air Drying Plants,Condensers,Balance Valves,Needle Valves,Twin Sharft Dispersers,Chemical and petroleum process equipment and so on


We could supply 321H pipe material certificate as per En10204-3.1 or EN10204-3.2 by third parts(like TUV,DNV,GL,and so on)

Please send us the size and quantity of 321H pipes that you need, we are glad to quote the best price for your side

Except 321H pipes,we also could produce 321H flanges,321H plates,321H fasteners,321H bolts,321H pipe fittings,321H bars,321H tubes,321H springs