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

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

SS UNS S32100 SMLS Tube Supplier in Patna, SS UNS S32100 Seamless Pipe Manufacturer in Patliputra, SS 321 ASME SA249 Seamless Tube Manufacturer in Kopakala, SS UNS S32100 SMLS Tube Distributor in Bihta, Stainless Steel ASTM A312 321H Seamless Pipes Distributor in Dehri.

Table of Content:

ASTM A312 Stainless Steel TP321 Seamless Pipes Distributor in Hajipur, SS ASME SA249 321H Seamless Tube Supplier in Gidha, SS UNS S32109 Seamless Tube Dealer in Hajipur, ASME SA269 SS TP321H Seamless Tube in Patna, ASTM A312 SS TP321 Seamless Pipes Manufacturer in Dehri.

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

SS 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. SS 321 Seamless Tubes have outstanding forming and welding characteristics, exceptional toughness, even down to cryogenic temperatures. Stainless Steel 321 Seamless Pipes demonstrate resistance to oxidation in temperature ranges up to 1500 degrees F, superior creep and stress rupture properties, and good cryogenic temperature strength.

Stainless Steel 321H Seamless Pipes is the improved high carbon version of SS 321 a general purpose austenitic SS that is strengthened against carbide precipitation. SS 321 Seamless Pipes are used in numerous applications owing to their improved creep resistance and higher strength at temperatures above 1000 degrees F. Our Stainless Steel 321H Seamless Pipes are known for their characteristics like strength, seamless finishing, easy machinability, ready weldability by most standard methods, and dimensional accuracy and highly demanded across India. SS 321H Seamless Pipes are developed to work within the carbide precipitation temperature range 800 to 1500 degrees F.

Stainless Steel 321H Seamless Tubes are supplied by us in various industrial application across India these industries include Aerospace Engineering, Petrochemical Equipment, Expansion Joints, Food Processing Equipment, Waste Treatment Plants, Thermal Oxidizers, and Medical Equipment, etc. 321 SS Seamless Tubes are 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 elevated temperatures. Stainless Steel 321 Seamless Tubes resists polythionic acid stress corrosion cracking in hydrocarbon service and can be used in fluoride-free caustic solutions at moderate temperatures.

We at Preston Pipes & Alloys ensure that our clients get only superior quality pipes and tubes and undertake numerous quality tests such as Mechanical Testing, Chemical Analysis, Positive Material Identification Testing, and more. We also provide various test certificates along with our Stainless Steel 321H Seamless Pipes including Raw Materials Certificate, 100% Radiography Test Report, Quality Certificates, Third Party Inspection Report. We export these Stainless Steel 321H Seamless Tubes to various cities across India.

Stainless Steel 1.4878 Seamless Pipes Stockist in Patna, SS 1.4878 SMLS Pipes in Kopakala, 1.4541 Stainless Steel Seamless Tubing Stockist in Bihta, ASTM A312 Stainless Steel TP321H SMLS Pipes Supplier in Patna, ASTM A269 Stainless Steel TP321 Seamless Tubing in Gidha.

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 321H SMLS Pipes are known to deliver exceptional performance and are generally developed for meeting the demands. We offer a broad range of SS UNS S32109 SMLS Tube through a worldwide network of stock-keeping branches. These are use in various industries like :

Application Industry

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