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

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

ASTM A312 SS 321 Welded Pipe Distributor in Karam Pura, SS TP321H ASTM A269 Welded Tubing Distributor in Patparganj, Stainless Steel 1.4878 Welded Tube Stockist in Delhi, SS ASTM A312 TP321 Welded Pipes Distributor in Bawana, SS 1.4541 Welded Pipes Stockist in Mayapuri.

Table of Content:

SS ASME SA249 321H Welded Tubing Dealer in Naraina, SS 1.4878 Welded Tube Supplier in Okhla, ASME SA312 Stainless Steel TP321 Welded Pipes Manufacturer in Bawana, SS 1.4878 Welded Tubing in Karam Pura, ASTM A269 SS 321 Welded Tube Dealer in Delhi.

Preston Pipes and Alloys is a notable producer, supplier, distributor, and stockiest of Stainless Steel 321, 321H Welded (ERW, EFW) Pipes/Tubes in Mumbai, India. SS 321 grade is a chromium-nickel steel alloy. Stainless Steel 321 welded pipes have high corrosion resistance to atmospheric conditions, sterilizing solutions, various organic chemicals, as well as a wide range of inorganic chemicals. Stainless Steel 321 Welded Pipes is a common austenitic 18/8 stainless steel alloy. The titanium content makes it a good option for high-temperature conditions of up to 900 degree C.

Preston Pipes and Alloys is highly active in the production of 321-grade pipes and tubes of different types across India. They include, SS 321 Welded pipes/ tubes, SS 321 ERW Pipes/Tubes, and SS 321 EFW pipes/tubes. SS 321H is a higher carbon version of the 321 grade providing a higher temperature strength. These Stainless Steel 321 Welded Pipes and Stainless Steel 321 Welded Tubes show good welding and forming abilities. Owing to this functionality, these pipes and tubes are widely used in temperatures ranging from more than 500 degrees C.

Our Stainless Steel 321 EFW pipes are majorly applicable in manufacturing of pressure vessels, heat exchangers, pharmaceutical and chemical processing equipment in Gujarat, India. We fabricate these 321 grades ERW pipes and tubes in different sizes, dimensions, thicknesses, and lengths in Mumbai, India. Apart from the standard sizes, we also manufacture our pipes and tubes in custom sizes according to our esteemed customer’s demand in Rajasthan, India.

The Stainless Steel Welded 321H Tubes are generally used in applications that require heating temperature between 800 degrees F and 1650 degree F, for example, aircraft collector rings, exhaust manifolds, expansion joints, and high-temperature chemical process equipment. The overall properties of these SS 321H Welded Pipes make them an extraordinary, relatively affordable option for many applications. We, at Preston Pipes and Alloys are one of the best exporters of SS 321 ERW tubes in Mumbai, India. To ensure the top-notch quality of our pipes and tubes we perform different tests on the pipes and tubes.

The tests performed include flattening test, PMI 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 so on. We use high-end modern technologies to manufacture our pipes and tubes, hence producing high quality products.

SS UNS S32100 Welded Pipes Manufacturer in Delhi, SS UNS S32100 Welded Pipes Distributor in Patparganj, UNS S32100 Stainless Steel Welded Tubing Supplier in Okhla, ASTM A312 Stainless Steel 321H Welded Pipes Stockist in Delhi, ASTM A269 Stainless Steel 321H Welded Tube Supplier in Naraina.

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

SS 321H Welded Pipe are known to deliver exceptional performance and are generally developed for meeting the demands. We offer a broad range of SS 1.4541 Welded Pipes through a worldwide network of stock-keeping branches. These are use in various industries like :

Application Industry

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