Stainless Steel Pipes & Tubes

Stainless Steel Pipes and Tubes manufacturers in India


Stainless Steel Pipes & Tubes

Amardeep Steel Centre is a trusted manufacturer and supplier of stainless steel pipes and tubes that have various industrial applications within India and other markets across the world. The company has a good emphasis in terms of quality, consistency and delivery, therefore, stainless steel products are presented in line with high international standards and application requirements.

The addition of chromium and nickel in controlled amounts to steel makes the steel become stainless steel pipes and tubes that enhance their resistance to corrosion, mechanical strength and durability.

The common types of such grades include SS 304, 304L, 316, and316L due to their good formability, weldability, and corrosive resistance. They are manufactured on the criteria of ASTM A312, ASTM A213, and ASTM A270 based on the performance, which can be reliably and consistently checked. A passive layer of chromium prevents oxidation, pitting, and crevice corrosion, whereas nickel enhances toughness and stability under the high temperature and chemical conditions. Consequently, stainless steel pipes and tubes have been very popular in chemical processing, food and beverage, pharmaceutical, marine, desalination and other serious industrial processes where durability and low maintenance are priorities.

What are Stainless Steel Pipes?

Stainless steel pipes are hollow elongated steel tubes with an economical round cross-section and are therefore applicable in a large variety of applications. Stainless steel pipes and tubes find extensive application in the oil and chemical sectors, medical and food processing industries, light engineering, machinery, equipment construction, and structural frameworks due to their strength, corrosion resistance, and lightweight nature. In the case where torsional strength is not demanding, the stainless steel provides less weight and this makes it suitable in mechanical applications as well as construction work. Such pipes are also involved in the production of the traditional defense equipment and its components. The stainless steel pipes are basically categorized as seamless and welded. Depending on the mode of production, there are hot-rolled, extruded, cold-drawn and other special profiles in circular, hexagonal, triangular and octagonal profiles.

What are Stainless Steel Tubes?

Stainless steel tubes are commonly used in structural, instrumentation, and pressure applications where precise outside diameter and wall thickness are essential for proper fitting and performance. Heat exchanger stainless steel tubes are widely used in automotive components, medical equipment, and decorative applications due to their strength and corrosion resistance. As a leading supplier of stainless steel tubing, we also offer square and rectangular seamless stainless steel pipes designed for structural and special-purpose applications. These products provide excellent durability, dimensional accuracy, and reliability across demanding industrial environments.

Types of Stainless Steel Pipes & Tubes

At Amardeep Steel, we manufacture and supply a wide array of SS Pipes & Tubes, available in various forms, finishes, and dimensions to suit your specific project requirements. Our comprehensive range includes:

Seamless Stainless Steel Pipes & Tubes

Seamless Stainless Steel Pipes & Tubes

Seamless stainless steel pipes and tubes are manufactured without any welds, offering excellent strength, uniformity, and corrosion resistance. Designed to handle high pressure and temperature, they are ideal for critical applications in the oil & gas, chemical, and power industries. At Amardeep Steel, we provide rigorously tested seamless pipes suitable for fluid transport in demanding environments, ensuring long-term reliability and performance.

Welded Stainless Steel Pipes & Tubes

Welded Stainless Steel Pipes & Tubes

Welded stainless steel pipes are made by welding rolled sheets or strips and are more economical for larger diameters and non-critical applications. Commonly used in structural, automotive, and industrial sectors. These pipes are available in various types, including ERW, EFW, and LSAW, each suited for specific operational needs and cost-efficiency.


Stainless Steel Pipe Specifications

Stainless steel pipes are available in seamless, ERW, welded, and fabricated types as per ASTM, ASME, JIS, DIN, and EN standards. Offered in multiple sizes, forms, and surface finishes, they ensure strength, corrosion resistance, and reliable performance in industrial applications.

Specifications

Details

Standards

ASTM A312/A358, ASME SA312/SA358

Dimensions

ASTM, ASME and API

Standard

JIS, AISI, ASTM, GB, DIN, EN, etc.

Surface

Brushed, Mill Finished, Anodized, Sand Blasted, Finished Polished

Seamless Pipes Size

1/2″ NB – 24″ NB

ERW Pipes Size

1/2″ NB – 24″ NB

EFW Pipes Size

6″ NB – 100″ NB

Form

Round, Square, Rectangular, Hydraulic etc.

Length

Single Random, Double Random & Cut Length

Types

Seamless / ERW / Welded / Fabricated / LSAW Pipes

Chemical Composition for ASTM A312 TP304 and TP316

Grade

UNS No.

Carbon

Manganese

Phosphorus

Sulfur

Silicon

Chromium

Nickel

Molybdenum

TP304

S30400

0.08

2.00

0.045

0.030

1.00

18.0–20.0

8.0–11.0

TP304L

S30403

0.035

2.00

0.045

0.030

1.00

18.0–20.0

8.0–13.0

TP316

S31600

0.08

2.00

0.045

0.030

1.00

16.0–18.0

11.0–14.0

2.0–3.0

TP316L

S31603

0.035

2.00

0.045

0.030

1.00

16.0–18.0

10.0–14.0

2.0–3.0

Mechanical Properties Stainless Steel Pipes & Tubes

Grade

UNS No.

Tensile Strength (MPa)

Yield Strength (MPa)

TP304

S30400

515

205

TP304L

S30403

485

170

TP316

S31600

515

205

TP316L

S31603

485

170

Heat Treatment Requirements Stainless Steel Pipes & Tubes

Grade

Heat Treatment Temperature

Cooling / Testing

TP304 / TP304L

1900°F (1040°C)

Water Quench (C)

TP316 / TP316L

1900°F (1040°C)

Water Quench (C)

Stainless steel pipe and tube sizes and grades

Parameter

Details

Standards

ASTM A321, ASTM A213, ASTM A269, ASME SB677

Duplex Stainless Steel Pipe Standards

ASTM A789 / ASME SA 789, ASTM A790 / ASME SA 790

Material

AISI 304, 304L, 316, 316L

Outer Diameter

5.8 – 508 mm

Wall Thickness

0.3 – 50 mm

Stainless Steel Pipe Schedule Chart

Stainless steel pipe schedules define wall thickness and pressure capacity for different NPS sizes. Common schedules like Sch 5S, 10S, 40S, 80S, and XS ensure strength and reliability for various industrial applications.

Nominal Pipe Size (NPS)

Commonly Available Schedules

1/8" to 3/4"

Sch 10S, Sch 40S, Sch 80S

1" to 2"

Sch 5S, Sch 10S, Sch 40S, Sch 80S

2 1/2" to 4"

Sch 5S, Sch 10S, Sch 40S, Sch 80S

6"

Sch 5S, Sch 10S, Sch 40S, Sch 80S, Sch 120

8" to 12"

Sch 5S, Sch 10S, Sch 20, Sch 40S, Sch 80S

14" to 24"

Sch 10S, Sch 20, STD (Sch 40S), Sch 40

26" to 36"

STD (Sch 40S), Sch XS

Stainless Steel Pipe Dimensions & Weight Chart

This chart shows standard stainless steel pipe sizes along with outer diameter, wall thickness, and weight for Sch 40S and Sch 80S. It helps in selecting the right pipe based on pressure rating, strength, and application requirements in industrial piping systems.

NPS

OD (mm)

Sch 40S WT (mm)

Sch 40S Weight 

Sch 80S WT (mm)

Sch 80S Weight 

1/2"

21.3

2.77

1.29

3.73

1.65

3/4"

26.7

2.87

1.71

3.91

2.23

1"

33.4

3.38

2.54

4.55

3.29

1 1/2"

48.3

3.68

4.11

5.08

5.49

2"

60.3

3.91

5.52

5.54

7.60

3"

88.9

5.49

11.47

7.62

15.51

4"

114.3

6.02

16.32

8.56

22.67

6"

168.3

7.11

28.69

10.97

43.21

8"

219.1

8.18

43.20

12.70

65.63

10"

273.0

9.27

61.16

15.09

97.72

12"

323.8

9.53

74.62

17.48

134.15

16"

406.4

9.53

94.55

16.66

163.60

20"

508.0

9.53

118.66

19.05

234.30

24"

609.6

9.53

142.67

20.62

303.88

Grades of Stainless Steel Pipes & Tubes

We offer an extensive range of stainless steel pipes & tubes in various grades, each optimized for specific performance needs.

Grade

Type

Key Features

Common Applications

304

Austenitic

General-purpose; excellent corrosion resistance, good formability.

Food processing, kitchenware, architectural trim, general industrial piping.

304H

Austenitic

High-carbon 304; enhanced strength at elevated temperatures.

Pressure vessels, high-temperature structural components, boiler tubes.

304L

Austenitic

Low-carbon 304; excellent for welding, prevents intergranular corrosion.

Welded chemical equipment, pharmaceuticals, food/beverage industries.

316

Austenitic

Molybdenum added; superior resistance to pitting/crevice corrosion (chlorides).

Marine, chemical/petrochemical, pharmaceutical, medical devices.

316H

Austenitic

High-carbon 316; improved high-temp strength with enhanced corrosion.

High-temperature pressure vessels, power generation, furnace parts.

316L

Austenitic

Low-carbon 316; ideal for welding in aggressive environments.

Chemical/petrochemical equipment, marine hardware, medical implants, pulp/paper.

316Ti

Austenitic

Titanium-stabilized 316; prevents sensitization, good high-temp strength.

Exhaust manifolds, aircraft parts, chemical processing (elevated temperatures).

310

Austenitic

High Cr/Ni; excellent high-temperature oxidation & creep resistance.

Furnace parts, heat exchangers, power generation, high-temp chemical processing.

321

Austenitic

Titanium-stabilized 304; prevents intergranular corrosion after welding.

Aircraft exhaust manifolds, expansion joints, furnace parts, boiler casings.

321H

Austenitic

High-carbon 321; improved high-temp strength with stabilization.

High-temperature structural applications, pressure vessels (chemical, aerospace).

347

Austenitic

Niobium-stabilized; excellent intergranular corrosion resistance.

High-temperature chemical process equipment, superheaters, boiler tubes, aircraft exhaust.

410

Martensitic

Basic martensitic; good strength, heat-treatable for hardness.

Cutlery, fasteners, valves, pump shafts.

2205

Duplex

High strength; excellent resistance to SCC, pitting, and general corrosion.

Chemical processing, oil & gas (pipelines, risers), marine, pulp/paper.

2507

Super Duplex

Very high strength; exceptional corrosion resistance in extreme environments.

Offshore oil/gas, chemical tankers, desalination plants, subsea equipment.

904L

Super Austenitic

High Ni/Mo/Cu; excellent resistance to sulfuric acid, chlorides, SCC, pitting.

Chemical processing, sulfuric acid production, marine/brackish water, pollution control equipment.

Manufacturing Types and Processes

  1. Seamless Hot Rolling Process
    Round Pipe Billet → Heating → Perforation → Shaping (Three Roll Skew Rolling / Continuous Rolling / Extrusion) → Sizing / Diameter Reduction → Cooling → Straightening → Water Pressure Test / Flaw Detection → Marking → Storage
  2. Seamless Cold Rolling (Cold Drawn) Process
    Round Pipe Billet → Heating → Perforation → Annealing → Pickling → Oil Coating (Copper) → Multi-Pass Cold Drawing → Heat Treatment → Straightening → Water Pressure Test → Marking → Storage
  3. Longitudinal Welding (Straight Seam Welding) Process
    Includes ERW (Electric Resistance Welding) and EFW (Electric Fusion Welding)

Common Forms & Finishes

Our Stainless Steel Pipes and Stainless Steel Tubes are available in:

  1. Forms: Round, Square, Rectangular, Hydraulic, Oval, and Custom Profiles.
  2. Finishes: Brushed, Mill Finished, Anodized, Sand Blasted, Finished Polished, Annealed & Pickled, Bright Annealed (BA).

Applications of Stainless Steel Pipes & Tubes

Why Choose Amardeep Steel for Your Stainless Steel Pipes & Tubes Needs?

Get a Competitive Price for Stainless Steel Pipes & Tubes Today!

For a reliable supply of certified stainless steel pipes & tubes, trust the experts at Amardeep Steel Centre. Our technical team is ready to assist with your requirements and provide a prompt, detailed quotation for your project. Whether you need a single length or a full container load, we are your trusted partner for all things stainless.

Request a Quote or Contact Us to learn more about our products, capabilities, and how we can support your next project. Our team is dedicated to providing you with the highest quality SS Pipes & Tubes at the most competitive price.


FAQs About Stainless Steel Pipes & Tubes

What is the difference between a Stainless Steel Pipe and a Tube?

While both are hollow cylindrical products, pipes are typically used for fluid/gas conveyance and are sized by nominal pipe size (NPS) and schedule. Tubes are generally used for structural, mechanical, or instrumentation purposes, with precise outside diameter (OD) and wall thickness being critical.

What is the difference between 304 and 316 Stainless Steel Pipe?

304 Stainless Steel Pipe is the most common grade, offering good general corrosion resistance. 316 Stainless Steel Pipe contains molybdenum, which provides superior corrosion resistance, especially in chloride-rich environments like marine or highly acidic chemical processing applications.

What is the Diameter of a Stainless Steel Pipe?

Stainless steel pipe sizes vary widely. They are typically specified by Nominal Pipe Size (NPS), ranging from small diameters like ½ inch up to 24 inches or even larger for industrial applications.

What are Stainless Steel Pipes and Tubes used for?

Stainless Steel Pipes and Tubes are used in industries such as oil & gas, chemical processing, food & dairy, pharmaceuticals, construction, automotive, and marine applications. Their strength, durability, and corrosion resistance make them suitable for both industrial and structural purposes.

Why choose SS Pipes and SS Tubes over Other Materials?

SS Pipes and SS Tubes are preferred because they offer high corrosion resistance, heat resistance, strength, and hygienic properties. They are also long-lasting, easy to maintain, and versatile, making them more cost-effective than many other materials.

Do you supply Stainless Steel Pipes and Tubes (SS Pipes, SS Tubes) in different grades and sizes?

Yes. At Amardeep Steel Centre, we supply Stainless Steel Pipes and Tubes in a wide range of grades, diameters, and thicknesses to meet the requirements of different industries. Custom fabrication options are also available.

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