ISO 9001:2015 Certified · CRISIL Rated · PED Certified · Trusted Global Exporter
321 Stainless Steel Tube and Tubing supplier

Siddhagiri Metals and Tubes supplier ASTM A269 Tubes and Tubing in Stainless Steel 321 Grade.
Other Names: ASTM A269 UNS S32100, Stainless Steel Welded Tube, Stainless Steel Welded Tubing, SS321 Welded Tube
Material: Material 1.4541, SS321, AISI 321, SUS321, INOX 321, Stainless Steel 321
Brand: Siddhagiri Metals and Tubes
Manufacturer: Siddhagiri Metals and Tubes
Rating: 4.3/5 based on 98 customer reviews

AISI 321 Stainless Steel Welded Tubes Supplier · ASTM A269 UNS S32100 · Steel Tubes

Siddhagiri Metals and Tubes is a supplier and stockist of Material 1.4541 Welded Tubes and Tubing for industrial use. We specialise in manufacturing and stocking TP 321 Tubes available available in all size range. Contact us for best price.

Welded Tubes have varied industrial applications such as chemical, petroleum, food processing, plumbing, heat exchangers, paper making, refrigeration, water treatment, steelwork, construction, etc. Choosing the proper tubing is very important and will help eliminate future problems and to improve overall quality of liquid or gas systems. Our astm 321 Stainless Steel tubes are manufactured as per stringent manufacturing specifications create smoother, cleaner capillary tubing with consistently uniform ID characteristics and close dimension controls, the proprietary process creates the ultimate inner surface smoothness in the range of 10-15 RMS.

Siddhagiri Metals and Tubes supplies a full range of Stainless Steel Tubes in sizes ranging from 1/8" OD TO 2"OD, 3MM OD TO 38 MM OD. The thickness of the 321ss welded tube ranges from 1MM TO 3 MM, 0.028 TO 0.156 IN. Most pipes are available in single random, double random and cut length sections. Our welded tubes are characterized by tight tolerances with precise dimension accuracy, smooths bright surfaces and cleaned, free from oil, grease, and other particles. This ensures an optimized flow of liquids and gases for all kinds of industrial applications.

Siddhagiri Metals and Tubes has been a renowned exporter of Stainless Steel welded tubes in countries such as South Africa, Thailand, Australia, Japan, Russia, UAE, Saudi Arabia, Qatar, Afghanistan, Taiwan, Spain, Poland, France, Germany, Canada, etc. We are Saudi Aramco approved company for welded tubing.

  • Tube Specification: Material 1.4541, EN 1.4541, UNS S32100, JIS SUS 321, BS 321S31, SS 2337, ASTM A269 UNS S32100
  • Dimension Standard: ANSI B36.19, ANSI B36.10
  • Outside Diameter (OD): 1/8" OD TO 2"OD 3MM OD TO 38 MM OD
  • Thickness Range: 1MM TO 3 MM 0.028 TO 0.156 IN, SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS
  • Type: Welded Tube, EFW Tube, ERW Tube
  • Form: Stainless Steel Round Tube, Stainless Steel Square Tube, Stainless Steel Rectangular Tube
  • Length: Single Random, Double Random & Cut Length
  • Tubing End: Plain End, Beveled End, Threaded
  • End Protection: Plastic Caps
  • Delivery Condition: Annealed and Pickled, Polished, Bright Annealed, Cold Drawn
  • External Coating: 3LPE / 3LPP/ FBE/ DFBE/ PP
  • Origin: Indian Origin, European Origin, Japanese Origin
  • Testing and Documents: Mill Test Certificates, EN 10204 3.1, Chemical Reports, Mechanical Reports, Destructive Test Report, Non Destructive Test Reports, PMI Test Reports, Visual Inspection Reports, Third Party Inspection Reports, NABL Approved Lab Reports
  • Packing: Packed in Wooden Boxes, Bubble wraps, Steel Strips Bundled, or as per Customers Requests

AISI 321 Stainless Steel Welded Tube Sizes in Stock

Size Thickness Type
1/8" OD TO 2"OD 3MM OD TO 38 MM OD 1MM TO 3 MM 0.028 TO 0.156 IN Stainless Steel ERW Tubes, Stainless Steel Welded Tubes, Stainless Steel Fabricated Tubes, Stainless Steel LSAW Tubes

Forms of Stainless Steel 321 in Stock

In Stock Stainless Steel Welded Square Tube Supplier

Stainless Steel Square Tube

SS 321 Welded Square Tubes with ASTM A269 in sizes 1MM TO 3 MM 0.028 to 0.156 IN

In Stock Stainless Steel Welded Round Tube

Stainless Steel Round Tube

SS 321 Welded Round Tubes with ASTM A269 in sizes 1MM TO 3 MM 0.028 to 0.156 IN

In Stock Stainless Steel Welded Rectangular Tubing

Stainless Steel Rectangular Tube

SS 321 Welded Rectangular Tubes with ASTM A269 in sizes 1MM TO 3 MM 0.028 to 0.156 IN

  • Chemical Properties
  • Mechanical Properties
  • Physical Properties
  • C. Si Mn P S Cr Ni N Ti
    MIN - - - - - 17.000 9.000 - -
    MAX 0.080 0.750 2.000 0.045 0.030 19.000 12.000 0.100 0.700
  • Yield Strength
    0.2% Proof
    (MPa)
    Tensile strength
    (MPa)
    Elongation
    (% in 50mm)
    Hardness
    (HRB)
    MIN 205 515 40.00  
    MAX       95
  • Density lb/in³ 0.285
    kg/dm³ 7.9
    Modulus of Elasticity psi 29 x 10-6
    GPa 200
    Thermal Conductivity Btu/ft hr°F 8.7
    W/m°C 15
    Heat Capacity Btu/lb°F 0.12
    J/kg°C 500
    Electrical Resistivity Ω-inch 27.6 x 10-6
    µΩm 0.73
    Poissons ratio   0.3

Properties of AISI 321 Stainless Steel

321 SS Cold Forming

Type 321 is easliy cold formed due to its ductile nature.

321 SS Hot Forming

Type 321 can be readily formed and drawn.

321 SS Machining

Type 321 is less machineable than Type 410 Stainless Steel.

321 SS Welding

Type 321 is easily weldable by all standard techniques. No post weld treatment is required.

321 SS Heat Treatment

Type 321 is non-hardenable by heat treatment. 321 is annealed by heating it to 1750 – 2050 °F (954 – 1121°C), then water quench or air cool.

Services We Offer

Documentation

Documentation is a very important part of the products we supply, and we work continuously to enhance the efficiency of the document-handling process without compromising quality of the product. Documents provided along with the shipment include Certificate of Origin, Material Test Certificate as per EN 10204 3.1 and 10204 3.2, NACE MR10103 and NACE MR0175 certified Test Certificates.

Quality Assurance

Stainless Steel Tubes are manufactured and controlled to international standards such as ASTM, ASME, BS, MSS, EN, DIN or WERKSTOFFE. Our products undergo stringent quality tests before they are dispatched.

Material Testing

PMI Testing, Ultrasonic Test, Mechanical Testing, Spectro Tests for Chemical Analysis of the grade, Flaring Test, IGC, etc. are some of the tests conducted at our facility. We welcome stage wise inspection from any of your representative or third party inspection agencies.

Packing and Delivery

The product is wrapped and packed in wooden crates or carton boxes. Our primary goal is to deliver quality products in time, no matter where the client is located.

Let Us Know What YOU Need

We Cherish All Your Requirements