Pipes and tubes

Pipes & Tubes

OneKaizen supplies carbon and stainless steel pipes and tubes, welded and seamless, to the standard on your order. We source welded pipes from SeAH Steel and seamless tubes from CITIC Pacific Special Steel, check the specification and documents, and deliver to your plant or project site.

  • Welded and seamless
  • Carbon and stainless
  • ASTM A53 · A106 · API 5L
  • ASTM A312 stainless
  • Sizes to order

SUPPLY SPECIFICATION

What We Supply

Sizes, grades, mills and tolerances for our pipes & tubes range.

Pipes & Tubes supply specification
SizesGrade familiesMake / millToleranceTesting
  • TypeWelded (ERW) · seamless
  • SizeOutside diameter and wall thickness to your order
  • LengthRandom or fixed lengths, cut to length on request
We source welded pipes from SeAH Steel (South Korea) and seamless tubes from CITIC Pacific Special Steel (China). Outside diameter, wall thickness and length to the ordered standard Mill test certificate · Chemistry · Mechanical tests · Hydrostatic and NDT as the standard requires

Services on Pipes and Tubes

OneKaizen sources pipes and tubes from the mill, checks them against your order and arranges cutting, inspection and packing before delivery.

Processing options for Pipes & Tubes
Processing routeTypical scopeOutput / control
Cut to lengthFixed lengths from random-length stock, on requestLength · end condition
InspectionAgainst your order and the standardDimensions · marking · certificate
Third-party inspectionArranged on requestAs agreed with your inspector
PackingBundles with end caps, export packing on requestTagging · protection

How We Supply Pipes and Tubes

  1. 1

    Review the order

    We check standard, grade, size, wall thickness, end finish and testing against what the mill makes.

    Sourcing team
  2. 2

    Choose the mill

    Welded pipes come from SeAH Steel and seamless tubes from CITIC Pacific Special Steel.

    Sourcing team
  3. 3

    Produce and test

    The mill makes and tests the pipes to the ordered standard, including hydrostatic and NDT where required.

    Partner mill
  4. 4

    Check documents

    We match heat numbers, markings and certificates to your order.

    Quality team
  5. 5

    Pack and deliver

    Pipes are bundled, capped, tagged and shipped to your plant or project site.

    Supply chain team

Quality, Packing and Delivery

Quality

Mill test certificates with heat-number traceability on every lot. Dimensions, marking and documents checked against your order. Third-party inspection on request.

Packing

Bundled with end caps and tagged with standard, grade, size and heat number. Export packing on request.

Delivery

To your plant or project site anywhere in India by road. Export packing and documents for buyers abroad.

Applications

  • Oil, gas and water lines
  • Process piping
  • Boiler and heat exchanger tubes
  • Structural and construction use
  • Machinery and hydraulic lines
  • Shipbuilding

QUICK QUOTE

Get a Price for Pipes & Tubes

A short form, under a minute. The OneKaizen sales team replies with price, mill and delivery date.

Drawings, processing or delivery dates? Use the detailed RFQ

Pipes & Tubes Questions

What types of pipes does OneKaizen supply?

OneKaizen supplies welded (ERW) and seamless pipes and tubes in carbon and stainless steel, to ASTM, API and EN standards.

Where do your pipes come from?

Welded pipes come from SeAH Steel in South Korea and seamless tubes from CITIC Pacific Special Steel in China. We confirm the source for each order.

What is the difference between welded and seamless pipe?

Welded pipe is formed from strip and seam-welded, and costs less. Seamless pipe is pierced from a solid billet, has no weld seam and suits higher pressure and temperature.

Which standards can you supply to?

Carbon steel pipes to ASTM A53, ASTM A106 and API 5L, and stainless pipes to ASTM A312. EN 10216 and EN 10217 on request. Send us the standard on your order.

What sizes do you supply?

Sizes depend on the mill and the pipe type. Send us the outside diameter, wall thickness and length, and we confirm availability before we quote.

Do pipes come with test certificates?

Yes. Every lot ships with a mill test certificate traced to the heat number, including the tests the standard requires.

Can you cut pipes to length?

Yes. OneKaizen arranges fixed lengths from random-length stock on request.

Final sizes, grades and testing are confirmed against the mill's range and your order before we quote.

ACROSS INDIA AND WORLDWIDE

Where We Supply Pipes & Tubes

OneKaizen delivers to manufacturers across India, from the auto clusters of Pune, Chakan and Chennai to the forging belt of Rajkot and the fastener hubs around Ludhiana and Chandigarh. Partners abroad source Indian-made steel and special grades through us.

Our teams in India
  • PuneHead office
  • ChakanProcessing facility
  • MumbaiOffice
  • ChennaiRegional team
  • BengaluruRegional team
  • RajkotRegional team
  • ChandigarhRegional team
  • FaridabadOffice
Outside India
  • Italy
  • Spain
  • Turkey
  • South Korea
  • Japan
  • United Kingdom
  • Canada
  • United States
  • United Arab Emirates
  • China
  • Mauritius

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