Stainless Steel Tubes

Seamless and welded stainless steel tubes to ASTM A269/A312.

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Radiant Precicom supplies precision stainless steel tubes and pipes in grades 304, 304L, 316, and 316L to ASTM A269 and A312. Available in mill, polished, or pickled finishes and cut to customer-specified lengths, our tubes serve demanding applications in oil and gas, pharmaceutical, and food-processing industries.

Technical Specifications

Grades
304 / 304L / 316 / 316L
Outer Diameter Range
12.7–101.6 mm
Wall Thickness
0.8–3.0 mm
Length
1–6 m (cut to length available)
Finishes
Mill / Polished / Pickled
Standard
ASTM A269 / A312

Key Features

ASTM A270/A269 testing available on request

Cut-to-length service for reduced material waste

Custom surface finish including electropolish

Grades 304/304L and 316/316L in stock

Mill test certificates supplied with every order

Typical Applications

Oil & Gas PipingPharmaceutical ProcessingFood ProcessingMarineChemical Plant

Manufacturing Process

Raw Tube / Coil Incoming

Grade 304/316 seamless or welded tube received with MTC; PMI/XRF grade confirmation on every heat

Cut-to-Length

Orbital saw cuts to ±0.5mm length tolerance; no burr on cut face; end squareness checked

End Forming (if required)

Flaring, swaging, or bead-rolling on end-forming machine; OD and wall checked after forming

Bending (if required)

CNC tube bending to drawing radius; springback compensated; OD ovality < 10% of nominal OD

Surface Finishing

As-cut, pickled (20% nitric/5% HF), or polished (Ra 0.4–0.8 µm) as specified

Final Inspection & Pressure Test

OD, WT, length, surface finish verified; hydrostatic pressure test on request; MTC issued

Standards & Compliance

ASTM A269

Seamless and Welded SS Tubing (General Service)

Material, dimensional, and testing requirements for SS tubes

ASTM A312

Seamless, Welded SS Pipes

Pipe specification for pressure and general service applications

ASTM A270

SS Sanitary Tubing

Referenced for pharmaceutical and food-grade surface finish requirements

ASTM A1016

General Requirements for Ferritic Alloy Steel and SS Tubes

Hydrostatic test and general requirements

Quality Control Procedures

PMI/XRF grade confirmation on incoming tubes (every heat)

OD and wall thickness check (calibrated micrometer)

End squareness and cut quality check

End-form dimensional check (OD, bead height, flare angle)

Surface finish measurement (Ra for polished tubes)

Hydrostatic pressure test (on request per ASTM A1016)

MTC review — chemical composition and mechanical properties

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Need a Custom Solution?

Our engineering team can design, machine, and test components to your exact specification. Get in touch for a no-obligation quotation.

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