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321H Tubes
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We could produce 321H tubes,321 H tubes,321H tubings,321H seamless tubes,321H U Bend Tubes,321H U-tube,321H welded tubes,321 H boiler tubes, 321H heat exchanger tubes,321H Capillary tubes,321H Thermocouple tubes,321H Superheater tubes and reheater tubes,321 H condenser tube,321H finned tubes,321H furnace tubes,321H instrumentation tubes,321H Evaporator tubes,321H honed tubes, 321H coiled tubes,321H Precision tubes,321H High pressure tubes,321H hydraulic tubes from china

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

As per surface finish of 321H seamless tubes and welded tubes, we could do 180G, 320G Satin / Hairline(Matt Finish, Brush, Dull Finish),PICKLING surface finish as per the requirement of the clients

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

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

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

321H is a general purpose austenitic stainless steel that is stabilized against carbide precipitation and designed to work within the carbide precipitation temperature range 427 to 816°C (800 to 1500°F)


The chemical composition of 321 H seamless tubes and weled tubes is as follows

Grade

321H

C

0.04 - 0.10

Mn

2.00

P

0.04

max (S)

0.03

max (Si)

0.75

Cr

17.0 – 20.0

Ni

9.0 – 12.0

N

0.1 Max.

Fe

Bal.

other

Ti=4(C) to 0.60%


The mechanical propery of 321H seamless tubes and weled tubes is as follows

Properties

Metric

Tensile  strength

70 KSI

Yield  strength

30 KSI

Elongation  at break

29%

Hardness,  Brinell

≤187


In order to control the quality of 321H tubes,We could do Corrosion Test,Chemical Analysis,Mechanical Testing,Reverse-bend and Re. flat tests,Eddy Current Testing,Hydrostatic Testing,Air Under Pressure Test,Visual Inspection,IGC Testing,O.P Testing,Micro Testing,Ultrasonic testing.Radiography Testing,Liquid Penetrate testing as per the requirement of the clients

As per the packing for 321H tubes, all our 321H seamless tubes and weled tubes will be Bundled with knitted plastic bag, wooden cases or according to customers' request.

Our 321H seamless tubes and weled tubes are widely used in many industries like,heat exchanger, boiler and pressure vessel manufacturing, pump & valve construction,steam & gas turbines, hydro power applications,petrochemical industries as well as oil and gas industries and so on


We could supply Third party inspection certificate for 321H seamless tubes and weled tubes  such as TUV, SGS, LR, MOODY, ITS, DNV,BV,Lloyd's Reg. of Shipping ,GL,API as per the requirement of the clients.

Please send us the size of 321H seamless tubes and weled tubes that you need, we are glad to quote the best price for our clients.

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