Stainless Steel 321 / 321H Welded Pipes

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Silver Tubes is a well-known supplier, manufacturer, and exporter of pipes. Our SS 321/321H Welded Pipes are often a demanded product of various industries. We slit these pipes into the desired width, thickness and length asked by customers to fit their needs. All the standards specified for the pipe manufacturing complies at silver tubes. Our welded pipes are thus one of the best industrial products that are exported over several countries of the globe. Our specific manufacturing practices and packaging methods also add safety to our products that have to lead us to maintain customer’s trust over the years.

We have grown as a renowned name in the industry after working over years of development. Thus, the usability of our products is not only limited to just one industry but also the entire market. Petrochemical, gas, oil refineries, brewery, chemical and hydrocarbon industries are our main clients for SS 321/321H Welded Pipes.

Welded pipes at Silver Tubes are manufactured using a skelp which is a long coiled steel ribbon. The skelp is first converted to a flat sheet of the rectangular shape of the desired length. It is then fed to a rolling machine that forms a cylinder shape. The sheet ends are welded. Appropriate welding methods are used to weld the pipes among which ERW, DSAW, and EFW are common. Proper heat treatment is given to the welded pipes after manufacturing to make the weld zone less visible.

Due to the welded joints, the pipes are operated at low pressure. However, they have higher dimensional tolerances and are cost-effective products. After manufacturing the product is well tested followed by marking and packaging before going leaving for transportation.

Our SS 321/321H Welded Pipes are essentially used in process plants and pipeline constructions. Therefore, safety and quality must be ensured thus we offer certificates such as IBR, manufacturer, third party inspection and more to the buyers.

Stainless Steel 321/321H Pipes

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Stainless Steel 321/321H Welded Pipe Specification
Specifications ASTM A312/ ASME SA312
Welded Pipes 1 / 2" NB - 24" NB
Outside Diameter 6.00 mm OD up to 914.4 mm OD, Sizes up to 24" NB available Ex-stock, OD Size Steel Tubes available Ex-stock
Thickness Range 0.3mm – 50 mm, SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS, SCH XS
Type Welded
Form Round Pipes, Square Pipes, Rectangular Pipes
Length Single Random, Double Random & Required Length
End Plain End, Beveled End, Treaded
Outside Finish 2B, No.4, No.1, No.8 Mirror Finish for Stainless Steel Pipes, Finish as per customer Requirements
Delivery Condition Annealed and Pickled, Polished, Bright Annealed, Cold Drawn
EN 10216-5 EN 10216 321/321H Welded Steel Pipe, EN 10216-5 1.4541 Welded Steel Pipes for pressure purposes
EN 10217-7 EN 10217 321/321H Welded Steel Pipe, Steel EN 10217-7 1.4878 Welded Pipes for pressure purposes
Stainless Steel UNS S32100/S32109 Welded Pipes Equivalent Grades
STANDARD UNS WERKSTOFF NR. EN JIS
SS 321 S32100 1.4541 X6CrNiTi18-10 SUS 321
SS 321H S32109 1.4878 X12CrNiTi18-9 SUS 321H
321/321H Stainless Steel Welded Pipes Chemical Composition
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 TP321/TP321H Welded Pipes Mechanical Properties
Tensile Strength Yield Strength (0.2%Offset) Elongation Hardness
Rockwell B (HR B) max Brinell (HB) max
Psi – 75000, MPa – 515 Psi – 30000, MPa – 205 35 % 95 217
SS 321/321H Pipes
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Supplier and Exporter of Stainless Steel 321/321H Welded Pipes in Cities of India Like

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Supplier and Exporter of Stainless Steel 321 / 321H Welded Pipes in Countries Like

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