Preston Pipes and Alloys | Pipes Tubes Suppliers in Mumbai, India

Stainless Steel 321/321H Welded Pipes/Tubes in Visakhapatnam

ASME SA312 SS TP321H Welded Pipes Stockist in Siddeswaram, Stainless Steel 321H TP321 ASME SA249 Welded Tube Manufacturer in Suryabagh, SS 1.4878 Welded Tubing Manufacturer in Visakhapatnam, Stainless Steel ASTM A312 TP321H Welded Pipe Distributor in Gajuwaka, SS UNS S32109 Welded Pipe Stockist in Parawada.

Table of Content:

SS ASTM A249 TP321 Welded Tube Dealer in Duvvada, Stainless Steel UNS S32100 Welded Tubing Distributor in Allipuram, ASME SA312 SS TP321H Welded Pipes Dealer in Gajuwaka, Stainless Steel UNS S32100 Welded Tube Supplier in Siddeswaram, ASME SA269 SS 321 Welded Tube in Visakhapatnam.

Preston Pipes and Alloys is a leading manufacturer, supplier, supplier, and stockiest of Stainless Steel 321, 321H Welded (ERW, EFW) Pipes/Tubes in Mumbai, India. Stainless Steel 321 alloy is a chromium-nickel steel grade. SS 321 welded pipes are resistant to atmospheric corrosion, sterilizing solutions, various organic chemicals, as well as a wide range of inorganic chemicals. SS 321 Welded Tubes is a common austenitic 18/8 stainless steel alloy. The addition of titanium makes it a good choice for high pressure conditions of up to 900 degrees Celsius.

We are involved in the production of 321-grade pipes and tubes of varied types across India. For instance, SS 321 Welded pipes/ tubes, SS 321 ERW Pipes/Tubes, and SS 321 EFW pipes/tubes.Stainless Steel 321H is a higher carbon version of the 321 grade which provides a higher temperature strength. These Stainless Steel 321 Welded Pipes and Stainless Steel 321 Welded Tubes show very good welding and forming properties. Owing to this functionality, these pipes and tubes are widely used in operating temperature environments greater than 500 degrees C.

Our Stainless Steel 321 EFW pipes are mainly used in the production of pressure vessels, heat exchangers, pharmaceutical and chemical processing equipment in Gujarat, India. We manufacture these 321 grades welded pipes and tubes in various sizes, dimensions, thicknesses, and lengths in Mumbai, India. Besides the standard sizes, we also produce our pipes and tubes in custom sizes according to our esteemed customer’s demand in Rajasthan, India.

The Stainless Steel Welded 321H Tubes are usually used for applications that require heating temperature in the range of 800 degrees F and 1650 degree F, for instance, aircraft collector rings, exhaust manifolds, expansion joints, and high-temperature chemical process equipment. The overall characteristics of our Stainless Steel 321H Welded Pipes make them an extraordinary, relatively low-cost choice for many applications. We, at Preston Pipes and Alloys are one of the leading manufacturers of SS 321 ERW tubes in Mumbai, India. To ensure the best quality of our pipes and tubes we perform different tests on the pipes and tubes.

The tests performed are flattening test, Positive Material Identity test, product analysis, transverse tension test, etching test, radiographic examination, grain size test, hardness test, bend test, flare test, stabilizing heat treatment, intergranular corrosion test and more. At Preston Pipes and alloys we use advanced technologies to produce our pipes and tubes, hence producing high quality products.

Stainless Steel UNS S32109 Welded Pipe Supplier in Visakhapatnam, Stainless Steel UNS S32100 Welded Pipes Distributor in Suryabagh, UNS S32100 Stainless Steel Welded Tubing Dealer in Allipuram, ASME SA312 SS 321H Welded Pipe Dealer in Visakhapatnam, ASTM A249 SS 321H Welded Tubing Dealer in Duvvada.

Equivalent Grades

SS 321 1.4541 S32100 SUS 321 X6CrNiTi18-10
SS 321H 1.4878 S32109 SUS 321H X6CrNiTi18-9
Steel Pipes

Standard Specification

Specifications :

Standard :

Welded Size :

ERW Size :

EFW Size :

Outside Diameter :

Length :

Thickness :

Schedule :

Type :


End :

ASTM A/ASME SA213, A249, A269, A312, A358


1/2″ NB – 16″ NB

1/2″ NB – 24″ NB

6″ NB – 100″ NB

6.00 mm OD up to 914.4 mm OD, Sizes up to 24” NB available

Single Random, Double Random & Required Length

0.3mm – 50 mm

SCH20, SCH30, SCH40, STD, SCH80, XS, SCH60, SCH120, SCH140, SCH160, XXS

Seamless, Welded, ERW, EFW

Round Pipes, Square Pipes, Rectangular Pipe

Plain End, Beveled End, Treaded

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

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 %

Types Of Grade 321/321H Stainless Steel Welded Pipes/ Tubes

PipeStainless Steel Grade 321/321H Welded Pipe

Pipe SS 321/321H Welded Tubes Equivalent Grades

Application Industry

Stainless Steel TP321 Welded Pipes are known to deliver exceptional performance and are generally developed for meeting the demands. We offer a broad range of Stainless Steel UNS S32109 Welded Pipes through a worldwide network of stock-keeping branches. These are use in various industries like :

Application Industry

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