Two sources can list the same grade and still deliver different tubing. The production route, whether seamless or welded stainless steel tubes, sets the pressure rating and cost. ASTM and ASME compliance, wall thickness, surface finish, MTC documentation, and stock position then separate one source from the next.
Project orders add one more test, which is export capability, since overseas buyers need staged dispatch with complete paperwork. This guide profiles seven Indian stainless steel tubing manufacturers and suppliers in alphabetical order against identical criteria. It works as a buyer reference, not an objective ranking.
Top 7 Stainless Steel Tubing Suppliers and Manufacturers
Each stainless steel tubing manufacturer in India or supplier below appears alphabetically, with identical criteria applied to all profiles.
Amardeep Steel Centre
- Location: Mumbai, Maharashtra, India
- Manufacturer/Supplier status: Manufacturer, stockist and exporter
- Tubing types: Stainless steel tubes, published alongside pipes in the same range
- Grades: 304, 304L, 316, 316L, 321, 347, 2205 and 904L
- Standards: ASTM tube specifications, selected per order
- Industries: Process, engineering and export buyers needing tubes with stock backing
- Relevant capability: Combines manufacturing, stock holding, and export dispatch under one listing, which suits buyers who need cut lengths quickly and shipping documents for overseas delivery
- Official website: amardeepsteel.com
Amigo Impex
- Location: Mumbai, Maharashtra, India
- Manufacturer/Supplier status: Supplier
- Tubing types: Seamless, welded, and EFW tubes
- Grades: Austenitic stainless grades, listed per specification on the product page
- Standards: ASTM A213, A249, A269, A270 and A554
- Industries: Heat transfer, sanitary and mechanical tubing users
- Relevant capability: The listed specifications span boiler and heat exchanger tubes (A213), general service (A269), sanitary tubing (A270), and mechanical tubing (A554), so one enquiry can cover mixed requirements
- Official website: amigoimpex.com
Bhansali Metalloys
- Location: Mumbai, Maharashtra, India
- Manufacturer/Supplier status: Supplier
- Tubing types: Seamless and welded stainless steel tubes
- Grades: 304, 304L, 316, 316L, 321, 310 and 347
- Standards: Specification stated on the quotation
- Industries: General process and engineering users
- Relevant capability: Covers both production routes across seven grades, including 310 for heat resistance and 347 for stabilised service, which lets buyers compare seamless and welded quotes from a single source
- Official website: bhansalimetalloys.com
Kamal Steels
- Location: Mumbai, Maharashtra, India
- Manufacturer/Supplier status: Supplier
- Tubing types: Seamless and welded tubing, including cold-drawn seamless
- Grades: 304/304L, 316/316L, 321, 347, 310/310S and 904L
- Standards: ASTM A213, A249, A269 and A511
- Industries: Process, boiler, and mechanical tubing users
- Relevant capability: Cold-drawn seamless tubing gives tighter dimensional control than hot-finished stock, and A511 coverage extends the range into mechanical tubing
- Official website: kamalsteels.com
Ratnamani Metals & Tubes Ltd.
- Location: Ahmedabad, Gujarat, India, with plants at Kutch, Indrad and Chhatral
- Manufacturer/Supplier status: Manufacturer
- Tubing types: Stainless steel seamless and welded tubes, heat exchanger tubes, instrumentation tubes, nickel alloy seamless tubes and titanium welded tubes
- Grades: Austenitic and duplex stainless steels, including UNS 31803 and UNS 32205
- Standards: ASTM/ASME SA 789 for duplex tubes, plus international standards and customer specifications
- Industries: Oil and gas, refineries, thermal and nuclear power, chemicals and petrochemicals
- Relevant capability: Operates a hot extrusion press for seamless production and supplies domestic and overseas customers across Asia-Pacific, Europe, the Middle East, and America
- Official website: ratnamani.com
RGM Alloys
- Location: Mumbai, Maharashtra, India
- Manufacturer/Supplier status: Supplier
- Tubing types: Cold-rolled and hot-rolled seamless tubes
- Grades: Austenitic stainless grades listed on the product page
- Standards: ASTM tube specifications stated on each quotation
- Industries: Process and equipment users that specify controlled surface finishes
- Relevant capability: Offers bright annealed, solution annealed, electropolished, and polished finishes, which matters where surface condition affects cleanliness or weld preparation
- Official website: rgmalloys.com
Shubhlaxmi Metals & Tubes Pvt. Ltd.
- Location: Mumbai, Maharashtra, India
- Manufacturer/Supplier status: Manufacturer and exporter
- Tubing types: Seamless and welded tubes, U tubes, heat exchanger tubes, and instrumentation tubes
- Grades: 304/304L, 316/316L, 321, 347, 310/310S and 904L
- Standards: International tube specifications, with ASTM grades quoted per order
- Industries: Heat exchanger and instrumentation users
- Relevant capability: Lists U tube production for heat exchangers, and publishes ISO 9001, ISO 14001, PED and AD 2000 Merkblatt W0 accreditations for its seamless, welded and U tube output
- Official website: shubhlaxmi.com
How to Compare Stainless Steel Tubing Suppliers
Buyers shortlisting stainless steel tubing suppliers can score every candidate against the same twelve checks below before requesting any quotation or comparing prices.
- The product range should cover the tube forms the project needs, such as heat exchangers, instrumentation and mechanical tubes.
- Seamless and welded capability decides whether a source can serve high-pressure duty or cost-sensitive general service.
- Grade availability should include 304/304L, 316/316L and 321, plus 904L or duplex when the process medium demands higher corrosion resistance.
- ASTM and ASME compliance must name the exact specification, such as A213, A249, or A269, on the quotation and the test certificate.
- Size and wall thickness range should cover the required outside diameter and wall thickness, and match the stainless steel tube fittings planned for the system.
- Surface finish options, including bright annealed, solution annealed, and electropolished, affect cleanliness, appearance, and weld preparation.
- Testing facilities should cover hydrostatic, eddy current or ultrasonic testing, flattening and material identification, with results shared before dispatch.
- MTC and traceability require heat numbers on every bundle that match the mill test certificate under EN 10204 3.1 or 3.2.
- Ready stock availability shortens lead time for common sizes, so buyers should request current stock quantities in writing.
- Custom manufacturing capacity matters for non-standard lengths, cut-to-size orders and special tolerances that catalogue stock cannot meet.
- Domestic and export supply experience shows in how a source handles packing, marking, and shipping documents for overseas projects.
- Industry experience in oil and gas, power or chemical plants indicates familiarity with third-party inspection and vendor approval procedures.
Why Buy Stainless Steel Tubing from an Established Supplier?
Sourcing from stainless steel tube manufacturers and stockists with documented processes lowers technical risk, reduces rework, and keeps schedules predictable for procurement teams.
- Consistent material specifications mean every lot arrives with the grade, chemistry, and temper that the purchase order called for.
- Traceability links each tube to a heat number, so an engineer can follow any failure back to its melt.
- Documentation such as mill test certificates and inspection reports gives auditors a record that matches the delivered material.
- Quality inspection before dispatch catches dimensional and surface defects while correction is still inexpensive.
- Grade availability across 304, 316, 321, and duplex lets one source cover mixed requirements in a single order.
- Dimensional consistency across lots keeps seamless stainless steel tubes within tolerance for bending, welding, and fitting assembly.
- Reliable project supply allows staged deliveries against a schedule, which prevents idle crews at the installation site.
- Technical support from the supplier helps buyers resolve grade selection and specification questions before the order, not after.
Frequently Asked Questions
What should I look for in a stainless steel tubing supplier?
Start with the production route, the exact ASTM specification and grade, and the MTC format. A stainless steel tubing supplier in India should also confirm size range, stock position, and export documentation in writing before the order.
What are the most common stainless steel tubing grades?
Grades 304/304L and 316/316L cover general service. Grades 321 and 347 are for elevated temperature applications, 310S is for heat resistance, and 2205 duplex and 904L are for chloride-containing media.
What certifications should I check for stainless steel tubing?
Check ISO 9001 registration, mill test certificate (EN 10204 3.1), and, if required, PED approval (for pressure equipment). These documents can be viewed and compared by the buyer before requesting a quotation from the listed suppliers on The Piping Mart.
How can I verify the quality of stainless steel tubing before purchasing?
Compare the heat number on the tube with the MTC and compare the chemistry and mechanical values to the ASTM specification. The grade is confirmed independently by material identification, dimensional checks, and third-party inspection prior to dispatch.
What is the difference between seamless and welded stainless steel tubing?
Seamless tubing starts as a pierced billet with no weld seam and suits high-pressure duty. Welded tubing is formed from a rolled strip with a longitudinal seam and costs less in standard sizes. The Piping Mart lists suppliers of both.
