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

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

Stainless Steel UNS S32100 Seamless Tube Stockist in Visakhapatnam, SS UNS S32109 SMLS Pipe Dealer in Parawada, SS 321H TP321 ASTM A269 SMLS Tube Manufacturer in Suryabagh, Stainless Steel 1.4541 Seamless Tube in Allipuram, Stainless Steel ASTM A312 TP321 SMLS Pipes Dealer in Gajuwaka.

Table of Content:

ASME SA312 SS TP321 SMLS Pipes Distributor in Siddeswaram, Stainless Steel ASTM A269 321H Seamless Tubing in Duvvada, Stainless Steel 1.4878 SMLS Tubing Stockist in Siddeswaram, ASME SA249 Stainless Steel TP321H SMLS Tube Supplier in Visakhapatnam, ASTM A312 SS 321 Seamless Pipe Stockist in Gajuwaka.

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

Stainless Steel 321 Seamless Tubes are utilized for applications with a temperature range of up to around 900 degrees C, integrating high strength, resistance to scaling and phase stability with subsequent aqueous corrosion resistance. SS 321 Seamless Tubes have excellent formability and weldability, superior toughness, even down to low temperatures. Stainless Steel 321 Seamless Pipes exhibit resistance to oxidation in temperature ranges up to 1500 degrees F, superior creep and stress rupture characteristics, and good cryogenic temperature toughness.

Stainless Steel 321H Seamless Pipes is the modified high carbon version of Stainless Steel 321 a general purpose austenitic Stainless Steel that is strengthened against carbide precipitation. SS 321 Seamless Pipes are used in various applications due to their enhanced creep resistance and superior strength at temperatures above 537 degrees C. Our SS 321 Seamless Tubes are well-known for their characteristics like durability, rugged construction, easy formability, ready weldability by most standard methods, and dimensional precision and highly demanded across India. SS 321H Seamless Pipes are designed to work within the carbide precipitation temperature range 800 to 1500 degrees F.

Stainless Steel 321H Seamless Pipes are supplied by us in various industrial application across India these industries include Aerospace Engineering, Chemical Processing Equipment, Petroleum Industry, Food Processing Equipment, Waste Treatment Plants, Thermal Oxidizers, and Pharmaceutical Production, etc. 321 SS Seamless Tubes can be 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 321 Seamless Tubes 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 pipes and tubes and conduct numerous quality tests such as Hardness Testing, Spectro Analysis, PMI Testing, and more. We also provide numerous test certificates along with our SS 321 Seamless Tubes including Raw Materials Certificate, 100% Radiography Test Report, Quality Certificates, Third Party Inspection Report. We export these SS 321 Seamless Pipes to various cities across India.

Stainless Steel 1.4541 Seamless Pipes Supplier in Visakhapatnam, SS UNS S32100 SMLS Pipe Stockist in Suryabagh, 1.4878 Stainless Steel Seamless Tube Stockist in Allipuram, ASTM A312 SS 321H Seamless Pipe Distributor in Visakhapatnam, ASTM A269 Stainless Steel TP321H SMLS Tube Stockist in Duvvada.

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 SMLS Tube are known to deliver exceptional performance and are generally developed for meeting the demands. We offer a broad range of Stainless Steel 1.4541 SMLS Tubing through a worldwide network of stock-keeping branches. These are use in various industries like :

Application Industry

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