• Metallica is one of the biggest suppliers of alloy steel seamless as well as welded steel pipes in India, with over 1500 tons of stock in Mumbai, Maharashtra India. We sell our alloy steel pipe products throughout India, and to international clients. Metallica also stocks and suppliers a wide range of stock of alloy steel pipe fittings, alloy steel flanges and valves, and all our products are supplied with complete product certification.

  • We can supply our seamless alloy steel pipe products not only in industry-standard lengths and diameters, but also in custom length and diameters. Our range of seamless steel pipes encompasses size range from 1/4 NPS to 24 NPS in thickness upto SCH XXS. All our alloy steel pipe products are sourced from domestic mills or are imported from reputed mills across the globe and stocked in India.

  • Metallica may not be the biggest manufacturer of alloy steel pipes, but we are the biggest seller of steel pipes in India. Be it carbon steel pipes, alloy steel pipes or stainless steel pipes, we hold extensive stock to give our customers same day deliveries. ASTM A335, ASTM A333 and ASTM A213 are the most widely used standards according to which alloy steel seamless pipes are manufactured across the globe.

  • In addition to supplying alloy steel pipes and tubes, Metallica also offers fabrication services that include cutting, bending, shearing, saw cutting and welding for all of kinds of seamless steel pipes and tubes. Our primary objective is to ensure that our customers receive alloy steel pipes and tubes at competitive prices, together with excellent service.

Welded Alloy Steel Pipe Manufacturer, Wholesaler, Dealer, Supplier and Distributor In India and Abroad at Low Price
  • As one of the largest manufacturer of welded alloy steel pipes, we have over 6000 tons in stock

  • Alloy Steel Welded Pipes Available at around Rs. 240/KG for Sale in India.

  • Our Annual Sales Volume for Welded Steel Pipes is Over 25,000 tons in India and Overseas.

  • Alloy Steel Welded Pipes, are Sold with Complete Range of Related Pipe Fittings and Flanges

On-Time Delivery with Quality Assurance and Price Guarantee for Steel Pipes

Email us on sales@metallicametals.com or Call us on +918928722715 now for the best offer!

Production & Stock Range of Alloy Steel Pipes & Tubes

Product Alloy Steel Pipe
Shapes Round Pipes/Tubes, Square Pipes/Tubes, Rectangular Pipe/Tubes, Coiled Tubes, Pan Cake Coils, Hydraulic Tubes
Types Seamless / ERW / Welded / Fabricated / CDW
Size (NB sizes) 1/8″ to 42″
Thickness SCH 40, SCH 80, SCH 160, SCH XS, SCH XXS, All Schedules, Upto 12mm thk
Common Grades ASTM A335 P1, ASTM A335 P2, ASTM A335 P5, ASTM A335 P9, ASTM A335 P11, ASTM A335 P12, ASTM A335 P22, ASTM A335 P23, ASTM A335 P91, ASTM A335 P92, ASTM A213 T2, ASTM A213 T5, ASTM A213 T5b, ASTM A213 T5c, ASTM A213 T9, ASTM A213 T11, ASTM A213 T12, ASTM A213 T22, ASTM A213 T23, ASTM A213 T91, ASTM A213 T92
Fittings Type Seamless Butt Weld, Flanges, Black, Galvanised Fittings
Other Fittings Elbows, Tees, Reducers, Caps, Stub Ends, Flanges (ANSI, Table E, D and H)
End Connections Plain, Bevel, Screwed, Threaded
Inspection Mill Test Certificates, EN 10204 3.1 and Various Chemical and Mechanical Tests Conducted like PMI Test, Visual Inspection, Third Party Inspection, NABL Approved Lab Reports, Destructive Test, Non Destructive Test, India Boiler Regulations (IBR) Test Certificate
Surface Finish Black Painting, Anti-Corrosion Oil, Galvanised Finish, Finish as per customer Requirements
Delivery Packed in Wooden Boxes, Plastic Bags, Steel Strips Bundled, or as per Customers Requests

Chemical Composition Of Welded Alloy Steel Pipe

Chemical Composition of A335 Grade P1
C, % Mn, % P, % S, % Si, % Cr, % Mo, %
0.05-0.15 0.30-0.60 0.025 max 0.025 max 0.50-1.00 1.00-1.50 0.44-0.65
Mechanical Properties of A335 Grade P1
Tensile Strength, MPa Yield Strength, MPa Elongation, %
415 min 205 min 30 min

Difference Between Seamless and Welded Alloy Steel Pipe. How to Identify Whether a Pipe is Seamless or Welded?

Electric Resistance Welding (ERW) pipe is manufactured by rolling metal and then welding it longitudinally across its length. Seamless pipe is manufactured by extruding the metal to the desired length; therefore ERW pipe have a welded joint in its cross-section, while seamless pipe does not have any joint in its cross-section through-out its length.

In Seamless pipe, there are no welding or joints and is manufactured from solid round billets. The seamless pipe is finished to dimensional and wall thickness specifications in sizes from 1/8 inch to 26 inch OD. Applicable in for High-pressure applications such as Hydrocarbon Industries & Refineries, Oil & Gas Exploration & Drilling, Oil & Gas Transportation and Air and Hydraulic cylinders, Bearings, Boilers, Automobiles, etc.

ERW (Electric Resistance Welded) pipes are welded longitudinally, manufactured from Strip / Coil and can be manufactured upto 24” OD. ERW pipe cold formed from a ribbon of steel pulled through a series of rollers and formed into a tube which is fused through a electric charge. It is mainly used for low/ medium pressure applications such as transportation of water / oil. Common sizes for ERW Steel Pipe range from 2 3/8 inch OD to 24 inch OD in a variety of lengths to over 100 feet. Surface finishes are available in bare and coated formats and processing can be handled on site to customer specifications.

How to identify whether the pipe is seamless or welded?

If it is ASTM A53,

Type S means seamless.
Type F is furnace but welded,
Type E is Electrical resist welded.
That is how. It is the easiest way to identify whether pipe is Seamless or ERW.

Standards & Codes Specification

Commonly Used Standards and Codes
Sr. No Code Standards
1 ANSI B16.11 Pipe Flanges and Flanged Fittings.
2 ANSI B 16.5 Flanges
3 MSS SP-44 Large Dia Flanges.
4 ASME B 16.47 (SERIES A & B) Large Dia Flanges.
5 DIN Flanges
6 BS 4504 Flanges
7 ASTM A105 Forging, Carbon Steel for piping components
8 ASTM A182 Forged & Rolled Alloy Steel Pipe Flanges. Forged Fittings & Valves and parts for high temperature services.
9 ASTM A 350 Carbon & Low Alloy Steel, requiring notch toughness testing for piping components
10 ASTM A 515 Standard specifications for Pressure Vessel-Plates Carbon Steel for intermediate and higher temperature services.
11 ASTM A 516 Standard Specifications for Pressure Vessel Plates Carbon steel for Moderate and lower temperature services.
12 ASTM A 517 Standard specifications for Pressure Vessel Plates Alloy Steel High Strength Quenched & Tempered.
13 ASTM A 333 Standard specification for Seamless & Welded Steel Pipe for Low Temperature Services.
14 ASTM A 335 Standard Specification for Seamless Ferritic Alloy steels pipe for High Temperature Services.
15 IS 2002 Specification for steels Plates for Boilers.
16 IS 2062 Specification for weldable structure steel.
17 IS 1239 Mild Steel Tubes Tubular & other wrought steel fittings specification.
18 IS 3589 Mild Steel Tubes Tubular & other wrought steel fittings specification.

Effects of Alloying Elements on Steel

•Manganese – strength and hardness; decreases ductility and weldability; effects hardenability of steel.
•Phosphorus – increases strength and hardness and decreases ductility and notch impact toughness of steel.
•Sulfur decreases ductility and notch impact toughness Weldability decreases. Found in the form of sulfide inclusions.
•Silicon – one of the principal deoxidizers used in steel making. In low-carbon steels, silicon is generally detrimental to surface quality.
•Copper – detrimental to hot-working steels; beneficial to corrosion resistance (Cu>0.20%).
•Nickel – ferrite strengthener; increases the hardenability and impact strength of steels.
•Molybdenum –  increases the hardenability; enhances the creep resistance of low-alloy steels.

Manufacturing Process of Welded Alloy Steel Pipe

Welded Pipes are manufactured from plate or from continues coil or strips. To manufacture welded pipe, first, plate or coil is rolled in the circular section with the help of plate bending machine or by a roller in the case of continuous process.

At the start of the welded pipe manufacturing process, so called slabs or billets are cast in a steel mill. Dependent on the external dimensions and wall thickness there are different methods of producing welded pipes and tubes. The welded pipes are produced by three types of welding processes:

  1. Electric Resistance Welding (ERW)
  2. Fusion Welding (EFW)
  3. Double Submerged Arc Welding (DSAW)

In the ERW and EFW manufacturing process welded pipes are formed by hot or cold rolling plate and welding the seam. In order to keep the outside (O.D.) surface of a welded pipe smooth and uniform a cutting tool called scarfing blade is used to remove the weld flash. Scarfing from the inside (I.D.) welded flash is also possible. With a heat treating at the end of the manufacturing process the weld zone of the steel pipe can be made less visible. Due to the weld seam lower operating pressures are stated in accordance with ASME compared to seamless pipes. In general welded tubes possess tighter dimensional tolerances than seamless pipes and are less costly if produced in same quantities. The process of producing Double Submerged Arc Welded Pipes first contains forming steel plates into cylindrical shapes. Later on the edges of the rolled plate are forged so that v-shaped notches are on the exterior and interior area of the seam. Then the pipe seam is being welded by an arc welder submerged under flux. In the case of high thickness pipe, multiple pass welding is done.

Click Here to Read More About Manufacturing Process.

What are the Steel Pipe Sizes?

Steel pipe sizes

Pipe size is quoted as a “Nominal Pipe Size” or NPS. The origin of the NPS numbers for smaller pipes (< NPS 12) is different to the origin for larger diameter pipes. However, all pipes of a specific NPS number have the same external or outer diameter (OD). The internal diameter will vary depending on the wall thickness of the metal. The reason for this is so that the same structural supports can be used for all piping of a specific NPS number regardless of the wall thickness.

Schedules

Steel pipe schedules are a way to describe the wall thickness of the pipe. This is a critical parameter as it is directly related to the strength of the pipe and the suitability for specific applications. A pipe schedule is a dimensionless number and is calculated based on the design formula for wall thickness, given the design pressure and allowable stress.

Examples of schedule numbers are as follows: 5, 5S, 10, 20, 30, 40, 50, 60, 80, 100, 120, 140, 160, STD, XS, and XXS—with the most common being schedules 40 and 80. As the schedule number increases, the wall thickness of the pipe increases. The schedule number of a pipe therefore defines the internal diameter, as the OD is fixed by the NPS number.

Over 10000 Tons in Stock for Alloy Steel Welded Pipes!

ISMT & Jindal Steel Pipes Dealers, Original MTR's Provided with All Materials

As one of the biggest alloy steel welded pipe stockholder and supplier in India, Metallica carries inventory of over 10,000 tons in its warehouses in Mumbai, Maharashtra India. We sell our alloy steel pipe products throughout India, and to international clients. We can supply our alloy steel tube products not only in industry-standard lengths and diameters, but also in custom length and diameters.

How are Steel Pipes Certified?

Certification of Steel Pipes

Manufacturers issue a Material Test Report or Mill Test Report to validate that the product meets the chemical analysis and mechanical properties specification. The MTR will contain all relevant data to the product and will accompany the product through its lifecycle.

The following are typical parameters that may be recorded on an MTR:

  • Chemical composition including carbon content, alloys, and sulfur
  • Material size, weight, identification, and grade
  • Material heat number, which ties back to the processing batch
  • Mechanical properties like tensile strength, yield strength, and elongation

At Metallica, we will Provide you with Original MTR’s for all Alloy Steel Welded Pipe Products! We will Send Our Test Certificates, along with Quotation