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

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

SS UNS S32100 SMLS Tubing Supplier in Chennai, SS UNS S32109 Seamless Pipe Stockist in Park Town, Stainless Steel 321 ASME SA269 SMLS Tube Dealer in Ennore, Stainless Steel UNS S32100 SMLS Tubing Distributor in Ambattur, Stainless Steel ASME SA312 TP321 Seamless Pipes Stockist in Guindy.

Table of Content:

ASTM A312 SS 321H Seamless Pipe Manufacturer in Oragadam, SS ASTM A249 TP321 SMLS Tubing Dealer in Madhavaram, SS 1.4541 SMLS Tubing Stockist in Oragadam, ASME SA249 SS 321 Seamless Tubing Supplier in Chennai, ASTM A312 SS TP321 SMLS Pipes Stockist in Guindy.

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

SS 321 Seamless Tubes are used for applications with a temperature range of up to around 900 degrees C, integrating high toughness, scaling resistance and phase stability with resistance to subsequent aqueous corrosion. SS 321H Seamless Pipes have outstanding forming and welding characteristics, exceptional durability, even down to cryogenic temperatures. Stainless Steel 321 Seamless Pipes demonstrate oxidation resistance in temperature ranges up to 1500 degrees F, superior creep and stress rupture properties, and good cryogenic temperature toughness.

Stainless Steel 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 Pipes are used in various applications due to their improved creep resistance and higher strength at temperatures above 1000 degrees F. Our SS 321 Seamless Tubes are well-known for their features like strength, seamless finishing, easy machinability, ready weldability by most standard methods, and dimensional precision and highly demanded across India. Stainless Steel 321H Seamless Tubes are designed to function within the carbide precipitation temperature range 427 to 816 degrees C.

Stainless Steel 321 Seamless Pipes are supplied by us in various industrial application across India these applications include Aerospace Engineering, Petrochemical Equipment, Expansion Joints, Food Processing Equipment, Oil and Gas Refining, Desalination Plants, and Medical Equipment, etc. 321H Stainless Steel Seamless Pipes can be used in most diluted organic acids at moderate temperatures and in pure phosphoric acid at cycrogenic temperatures and up to 10 per cent diluted solutions at high temperatures. SS 321 Seamless Pipes are immune to polythionic acid stress corrosion cracking in hydrocarbon service and are used in chloride free caustic solutions at moderate temperatures.

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

SS 1.4541 SMLS Pipes Supplier in Chennai, Stainless Steel UNS S32100 SMLS Pipe Manufacturer in Ennore, 1.4541 Stainless Steel Seamless Tubing Manufacturer in Ambattur, ASME SA312 Stainless Steel TP321H SMLS Pipes Stockist in Chennai, ASTM A269 Stainless Steel TP321H Seamless Tube Supplier in Madhavaram.

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 TP321 SMLS 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 Pipe through a worldwide network of stock-keeping branches. These are use in various industries like :

Application Industry

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