Stainless Steel 321 and 321H are high-quality materials renowned for their exceptional corrosion resistance and elevated temperature strength. These alloys belong to the austenitic stainless steel family and are widely used in various industries, including petrochemical, pharmaceutical, and aerospace.
Stainless Steel 321 Pipes are designed to withstand high temperatures and corrosive environments. These pipes exhibit excellent resistance to intergranular corrosion, making them suitable for applications involving exposure to sensitization during welding or heat treatment.
The SS 321 Tubes offer a comprehensive solution for fluid transportation and containment systems. These SS 321 tubes are available in various sizes and thicknesses to cater to diverse industrial requirements. The seamless construction ensures enhanced durability and efficient fluid flow.
Table Of Content
The key features of Stainless Steel 321 Pipes & Tubes include:
Stainless Steel 321H, an alloy variant of 321, contains higher carbon content, enhancing its high-temperature strength. The SS 321H Pipes are specifically designed to operate in environments with elevated temperatures, making them ideal for applications such as heat exchangers and furnace parts.
Key attributes of Stainless Steel 321H Pipes & Tubes include:
Pipe- ASTM A312, ASME SA312 / ASTM A358, ASME
SA358
Tube- ASTM A213, A269, A249, A511, A554 / ASME
SA213, SA269, SA249, SA511, SA554
Pipe- ANSI/ASME B36.19M, ANSI/ASME B36.10M
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
0.3mm – 50 mm, SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS, SCH XS
Seamless Pipe - 1 / 2" NB - 16" NB,
Welded Pipe - 1 / 2" NB - 24" NB,
EFW Pipe - 6" NB - 24" NB
Seamless Tube - 1 / 2" NB - 16" NB,
Welded Tube - 1 / 2" NB - 24" NB
Manufacturing - Seamless / Welded / ERW / EFW
/Fabricated / CDW / 100% X Ray Welded
End Types - Plain Ends, Bevelled Ends, Grooved
Mechanical Joints or Grooved Ends, Treaded One/Both Ends
Round, Square, Hollow, Rectangular, Instrumentation, High Pressure, Cold Rolled Coiled, Electropolish, Heat exchanger, Sanitary etc.
Length - Single Random, Double Random & Required
Length
Outside Finish - 2B, No.4, No.1, No.8 Mirror
Finish, Finish as per customer Requirements
STANDARD | UNS | WNR. | EN | JIS |
SS 321 | S32100 | 1.4541 | X6CrNiTi18-10 | SUS 321 |
SS 321H | S32109 | 1.4878 | X12CrNiTi18-9 | SUS 321H |
% | Cr | Ni | C | Si | Mn | P | S | N | Ti | Fe |
321 | min:17.0 max:19.0 |
min: 9.0 max:12.0 |
max:0.08 | max:0.75 | max:2.0 | max:0.045 | max:0.03 | max:0.10 | min:5*(C+N) max:0.70 |
Balance |
321H | min:17.0 max:19.0 |
min: 9.0 max:12.0 |
min:0.04 max:0.10 |
min:18.0 max:20.0 |
max:2.0 | max:0.045 | max:0.03 | max:0.10 | min:5*(C+N) max:0.70 |
Balance |
Grade | Tensile Strength ksi (min.) |
Yield Strength 0.2% Offset ksi (min.) |
Elongation - % in 50 mm (min.) |
Hardness (Brinell) MAX |
321/321H | 75 | 30 | 40 | 217 |
Oil & Gas Industrires
Chemical Industries
Construction Industries
Offshore Pipelines & Pipe Works
Petrochemical Industry
Shipbuilding Industries
Hydraulic Applications
Piping Systems
Refining Industry
Food Processing Industry
Pulp & Paper Industry
Power Plant Industry
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