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

Stainless Steel 321/321H Seamless Pipes/Tubes in Kolkata

Stainless Steel 1.4541 SMLS Tubing Manufacturer in Kolkata, SS 1.4541 SMLS Pipes Stockist in Durgapur, SS TP321H ASME SA249 SMLS Tube Stockist in Taltala, Stainless Steel UNS S32100 SMLS Tube Distributor in Asansol, SS ASTM A312 TP321 SMLS Pipes Stockist in Kankurgachi.

Table of Content:

ASTM A312 SS TP321 Seamless Pipe Dealer in Hooghly, SS ASTM A269 TP321 Seamless Tubing Manufacturer in Howrah, Stainless Steel UNS S32100 SMLS Tube in Hooghly, ASME SA249 SS 321 SMLS Tube Manufacturer in Kolkata, ASTM A312 Stainless Steel 321 Seamless Pipe Dealer in Kankurgachi.

Preston Pipes & Alloys is a prominent manufacturer, stockist and exporter of Stainless Steel 321/321H Seamless Pipes/Tubes in Mumbai, India.

Stainless Steel 321 Seamless Pipes are utilized for applications in the temperature range of up to about 900 degrees C, combining high strength, scaling resistance and phase stability with subsequent aqueous corrosion resistance. Stainless Steel 321 Seamless Pipes have excellent formability and weldability, exceptional durability, even down to low temperatures. SS 321 Seamless Tubes exhibit resistance to oxidation in temperature ranges up to 816 degrees C, higher creep and stress rupture characteristics, and good cryogenic temperature toughness.

SS 321H Seamless Pipes is the improved high carbon version of Stainless Steel 321 a general purpose austenitic SS that is stabilized against carbide precipitation. SS 321 Seamless Tubes are used in various applications owing to their improved creep resistance and superior strength at temperatures above 537 degrees C. Our SS 321 Seamless Tubes are well-known for their characteristics like strength, seamless finishing, easy formability, ready weldability by most standard processes, and dimensional accuracy and highly demanded across India. Stainless Steel 321H Seamless Pipes are developed to function within the carbide precipitation temperature range 427 to 816 degrees C.

Stainless Steel 321H Seamless Tubes are supplied by us in various industrial application across India these applications include Piston Engine Manifolds, Chemical Processing Equipment, Petroleum Industry, Food Processing Equipment, Oil and Gas Refining, Desalination Plants, and Medical Equipment, etc. 321 Stainless Steel Seamless Pipes are used in most diluted organic acids at moderate temperatures and in pure phosphoric acid at lower temperatures and up to 10 per cent diluted solutions at elevated temperatures. SS 321H Seamless Tubes are immune to polythionic acid stress corrosion cracking in hydrocarbon service and are utilized in fluoride-free caustic solutions at moderate temperatures.

We at Preston Pipes & Alloys make sure that our consumers get only high quality pipes and tubes and undertake various quality tests such as Hardness Testing, Chemical Analysis, PMI Testing, and more. We also provide various test certificates along with our SS 321 Seamless Tubes including Raw Materials Certificate, 100 per cent Radiography Test Report, Quality Certificates, Third Party Inspection Report. We supply these Stainless Steel 321 Seamless Pipes to various regions across India.

Stainless Steel 1.4541 SMLS Pipes Distributor in Kolkata, SS UNS S32100 SMLS Pipe Dealer in Taltala, 1.4541 SS SMLS Tubing Stockist in Asansol, ASTM A312 SS TP321 Seamless Pipes Stockist in Kolkata, ASME SA269 Stainless Steel 321 Seamless Tube Dealer in Howrah.

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 :

Seamless 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

Grade Density Melting Point Tensile Strength Yield Strength (0.2%Offset) Elongation
321/321H 8.0 g/cm3 1457 °C (2650 °F) Psi – 75000 , MPa – 515 Psi – 30000 , MPa – 205 35 %

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

PipeStainless Steel Grade 321/321H Seamless Pipe

Pipe SS 321/321H Seamless Tubes Equivalent Grades

Application Industry

SS 321 Seamless Tube are known to deliver exceptional performance and are generally developed for meeting the demands. We offer a broad range of SS 1.4878 Seamless Pipes through a worldwide network of stock-keeping branches. These are use in various industries like :

Application Industry

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