Metinox Overseas is ISO certified for supplying the SS 321 Seamless Pipes as well as SS 321H SeamlessPipes. We always maintain a huge stock to overcome the inconvenience. We always maintain the quality of whether the stock is large or small. We are known for marinating the quality in the market.
Stainless Steel 321H Seamless Pipes, Stainless Steel 321 Seamless Piping, 321H Stainless Steel Seamless Pipe Dealer, Stainless Steel 321 Cold Drawn Seamless Pipes, Stainless Steel 321H Seamless Industrial Pipe, ASME SA312 TP321 Stainless Steel Seamless Pipes Supplier in Mumbai India
These SS 321 Seamless Pipes have excellent strength and tighter tolerance. These tubes are of high quality with zero defects and superior performance. These pipes are chromium-nickel alloy with the addition of titanium which makes it excellent in elevated temperature environments. The SS 321H Seamless Pipes also show the equivalent properties are the SS 321 Seamless Pipes.
ASTM A312 Stainless Steel TP321H Seamless Pipe, Stainless Steel S32109 Seamless Pipes, TP321 Stainless Steel Seamless Pipe, Stainless Steel 1.4878 Seamless Pipe, SS 321H Seamless Pipes, SUS 321 Seamless Pipes,Stainless Steel TP321H Seamless Round Pipes, SS 321 Seamless Pipes Exporter in Mumbai.
These SS 321 Seamless Pipes are used in the petroleum industry, chemical industry, making the super heater of the boiler and also in the making of the heat exchangers. As these pipes are high-temperature resistance then they are used in the transmission of the fluid in the power station. It is also used in the exhaust purification devices, for construction purposes. And the SS 321H Seamless Pipes are used in the oil refinery types of equipment, industrial boilers, in making the pressure vessels and in many chemical processes in the heat exchangers.
These pipes have so many features hence the areas of their use also extend. These pipes are perfect for use in the transmission of the liquids from one place to another. It can transport liquids that have a high temperature and also the gases of high pressure. These pipes have the feature of high tolerance and dimensional stability. On applying high temperature and high pressure it will maintain its shape and size. These pipes are also used in the industries of petrochemical, natural gas, papermaking, and many water processing, etc. Type 321 is mainly used in the applications which require the heating between 800-1650 Fahrenheit.
These pipes have to undergo many tests and documentation while proceeding to the delivery. The tests which these pipes have to follow are flaring test, flattening test, spectro test, etc. the documentation that we will provide you are raw material certificate, third party inspection test certificate, etc
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Types of Stainless Steel 321/321H Seamless Pipes

Seamless Round Pipe
ASTM A312 TP321H Seamless Round Pipes Supplier, SS S32100 Seamless Round Pipes Exporter, SS 1.4878 Seamless Round Pipes Dealer, SUS 321 Seamless Round Pipes, ASME SA312 SS 321H Seamless Round Pipes in Mumbai, India.

Seamless Polish Pipe
ASTM A312 TP321 Seamless Polish Pipes Supplier, SS S32109 Seamless Polish Pipes Exporter, SS 1.4541 Seamless Polish Pipes Dealer, SUS 321H Polish Seamless Pipes, ASME SA312 SS 321 Seamless Polish Pipes in Mumbai, India.
Specification of Stainless Steel 321/321H Seamless Pipes
Specifications : ASTM A312 / ASME SA312
Outside Diameter : 6.00 mm OD up to 914.4 mm OD, Sizes up to 24" NB available Ex-stock, OD Size available Ex-stock
Thickness : 0.3mm – 50 mm, SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS, SCH XS
Size : 1/2" NB - 24" NB
Type : Seamless
Form: Round Pipes, Square Pipes, Rectangular Pipes.
Length : Single Random, Double Random & Required Length
End : Plain End, Beveled End, Treaded
Equivalent Grades of Stainless Steel 321/321H Seamless Pipes
STANDARD | WERKSTOFF NR. | UNS | JIS | EN |
SS 321 | 1.4541 | S32100 | SUS 321 | X6CrNiTi18-10 |
SS 321H | 1.4878 | S32109 | SUS 321H | X12CrNiTi18-9 |
Chemical Composition of Stainless Steel 321/321H Seamless Pipes
Grade | C | Mn | Si | P | S | Cr | N | Ni | Ti |
SS 321 | 0.08 max | 2.0 max | 1.0 max | 0.045 max | 0.030 max | 17.00 - 19.00 | 0.10 max | 9.00 - 12.00 | 5(C+N) – 0.70 max |
SS 321H | 0.04 – 0.10 | 2.0 max | 1.0 max | 0.045 max | 0.030 max | 17.00 - 19.00 | 0.10 max | 9.00 – 12.00 | 4(C+N) – 0.70 max |
ASME SA312 SS 321/321H Seamless Pipe Mechanical Properties
Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
8.0 g/cm3 | 1457 °C (2650 °F) | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 35 % |
Other Types of Stainless Steel 321/321H Seamless Pipes
Stainless Steel 321H Seamless Pipes Exporter in India | 321 Stainless Steel Seamless Pipes Supplier in India |
Stainless Steel 1.4878 Seamless Pipes Supplier in India | S32100 Stainless Steel Seamless Pipes Supplier in India |
Stainless Steel 1.4541 Seamless Pipes | ASTM A312 TP321H Stainless Steel Seamless Pipes |
Stainless Steel TP 321 Seamless Hollow Pipes | 321H Stainless Steel Seamless Pipes Supplier |
A312 SS S32109 Seamless Pipes Exporter | Stainless Steel S32100 Seamless Pipes Dealer |
Stainless Steel 1.4878 Seamless Pipes | Stainless Steel S32109 Seamless Piping |
Austenitic Stainless Steel 321 Seamless Pipes | 321H Stainless Steel Seamless Pipes Stockist |
Stainless Steel S32100 Seamless Pipes Dealer | Stainless Steel 1.4878 Seamless Pipe Stockist |
Stainless Steel SUS 321 Polished Seamless Pipes | ASME SA312 TP321H Stainless Steel Seamless Pipes |
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