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.
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.
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
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
| STANDARD | WERKSTOFF NR. | UNS | JIS | EN |
| SS 321 | 1.4541 | S32100 | SUS 321 | X6CrNiTi18-10 |
| SS 321H | 1.4878 | S32109 | SUS 321H | X12CrNiTi18-9 |
| 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 |
| 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 % |
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