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

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

SS 1.4878 SMLS Tube in Delhi, Stainless Steel 1.4878 Seamless Pipes Stockist in Mayapuri, Stainless Steel 321H TP321 ASME SA269 SMLS Tube Supplier in Patparganj, Stainless Steel 1.4541 SMLS Tube Manufacturer in Okhla, Stainless Steel ASTM A312 321 SMLS Pipes Distributor in Bawana.

Table of Content:

ASTM A312 SS 321H SMLS Pipes Stockist in Karam Pura, Stainless Steel ASME SA249 321H SMLS Tubing Dealer in Naraina, Stainless Steel 1.4541 SMLS Tubing Manufacturer in Karam Pura, ASTM A269 Stainless Steel TP321H SMLS Tubing Dealer in Delhi, ASTM A312 Stainless Steel 321 Seamless Pipe Manufacturer in Bawana.

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

SS 321 Seamless Tubes are utilized for applications with a temperature range of up to around 900 degrees C, integrating high toughness, scaling resistance and phase stability with subsequent aqueous corrosion resistance. Stainless Steel 321 Seamless Tubes have outstanding forming and welding characteristics, superior durability, even down to cryogenic temperatures. Stainless Steel 321 Seamless Tubes demonstrate oxidation resistance in temperature ranges up to 816 degrees C, superior creep and stress rupture characteristics, and good low temperature strength.

Stainless Steel 321H Seamless Pipes is the modified high carbon version of SS 321 a general purpose austenitic Stainless Steel that is stabilized against carbide precipitation. SS 321 Seamless Tubes are used in numerous applications owing to their enhanced creep resistance and superior strength at temperatures above 1000 degrees F. Our Stainless Steel 321H Seamless Tubes are known for their characteristics like strength, rugged construction, easy machinability, ready weldability by most standard processes, and dimensional accuracy and highly demanded across India. SS 321H Seamless Tubes are designed to function within the carbide precipitation temperature range 427 to 816 degrees C.

SS 321 Seamless Tubes are supplied by us in various industrial application across India these industries include Aerospace Engineering, Petrochemical Equipment, Expansion Joints, Breweries, Waste Treatment Plants, Desalination Plants, and Pharmaceutical Production, etc. 321 SS Seamless Pipes are utilized in most diluted organic acids at medium temperatures and in pure phosphoric acid at lower temperatures and up to 10 per cent diluted solutions at high temperatures. Stainless Steel 321H Seamless Pipes are immune to polythionic acid stress corrosion cracking in hydrocarbon service and can be used in chloride free caustic solutions at mild temperatures.

We at Preston Pipes & Alloys ensure that our clients get only high quality products and undertake various quality checks such as Mechanical Testing, Spectro Analysis, Positive Material Identification Testing, and so on. We also provide various test certificates along with our Stainless Steel 321 Seamless Pipes including Raw Materials Certificate, 100% Radiography Test Report, Quality Certificates, Third Party Inspection Report. We export these Stainless Steel 321 Seamless Pipes to various cities across India.

SS UNS S32100 SMLS Pipe in Delhi, Stainless Steel 1.4541 Seamless Pipe Stockist in Patparganj, UNS S32100 SS SMLS Tube Dealer in Okhla, ASTM A312 Stainless Steel TP321 SMLS Pipes Manufacturer in Delhi, ASTM A269 Stainless Steel TP321H SMLS Tube 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 :

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 TP321H Seamless Tube are known to deliver exceptional performance and are generally developed for meeting the demands. We offer a broad range of Stainless Steel 1.4878 SMLS Tube through a worldwide network of stock-keeping branches. These are use in various industries like :

Application Industry

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