Welded Stainless Steel and High-nickel tubes

Precision tubes,
built to spec.

Austenite Tube Industries manufactures welded stainless steel and high-nickel tubes in 300 series, 400 series, high-nickel alloys and more — for heat exchangers, heating elements, instrumentation and process industries worldwide.

ISO 9001:2015
ISO 45001:2018
PED Certified
Trusted by OEMs
ODWTSEC. A—A
6mm - 63.5mm OD0.4mm–2mm WT
2,500
MT / annum capacity
Since 1959
Group heritage, Janta Steel House
ISO Certified
ISO 9001:2015, ISO 45001:2018, PED
ASTM Adherence
ASTM A249, A269, A554
6mm - 63.5mm
Diameter range
0.4mm - 2.0mm
Thickness range

What size range do you manufacture? We manufacture welded stainless steel and high-nickel alloy tube from 6mm to 63.5mm outer diameter, with wall thickness from 0.4mm to 2mm — covering both small-diameter precision work and standard industrial sizes within a single, focused range.

Built for the application, not just the alloy.

Six application areas, each manufactured to the standards that application actually requires.

From raw coil to Mill Test Certificate.

A genuine sequence — every batch passes through all four stages before it ships.

01
Raw Material Inspection
Incoming coil is checked against chemical and mechanical composition requirements before it enters production.
02
Forming & Welding
Tube is formed and welded to the specified OD and wall thickness under controlled process parameters.
03
Testing & Inspection
Dimensional, and where required hydrostatic/eddy-current testing, confirms the batch meets the governing standard.
04
Mill Test Certificate
Each shipment is issued a traceable MTC confirming grade, standard, and test results.

What actually sets this mill apart.

Small-diameter specialists
A genuine manufacturing specialty in small-diameter, thin-wall tube — not a general mill that also handles small sizes as an afterthought.
Direct manufacturer
We manufacture in-house rather than trade or resell — consistent quality control and factory-direct pricing, with no intermediary.
Growth you can verify
Capacity grown from 500 MT to 2,500 MT per annum in two years — a real, checkable number, not a vague years-of-experience claim.

Part of the Janta Steel House group.

Austenite Tube Industries is part of the Janta Steel House group, which has traded in stainless steel products since 1959. We began manufacturing welded stainless steel tube with a 500 MT/annum capacity and have grown to 2,500 MT/annum within two years.

Based in Umbergaon, Gujarat, we manufacture to ASTM and ASME standards under an ISO 9001:2015, ISO 45001:2018 and PED-compliant quality system, supplying heat exchanger, heating element, and industrial equipment manufacturers in India and internationally.

1959
Janta Steel House founded, trading stainless steel polished pipe.
2021
Austenite Tube Industries begins welded tube manufacturing.
2023
Capacity reached within two years of manufacturing start.
Today
ISO 9001:2015, ISO 45001:2018 & PED certified — supplying six core application segments globally.

Tell us the spec.
We'll confirm the fit.

Grade, size, standard, quantity — send what you have and we'll respond with availability, lead time and pricing.

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