SAE J356 tubing: manufacturer of welded tubing with a controlled weld bead
When a component requires that the internal weld does not invade the bore —a shaft, a guide, a mechanism— SAE J356 is the reference standard. It is, almost literally, the description of our OPTIM range: internal weld bead ≤ 0.15 mm.
What the SAE J356 standard is
SAE J356 is the American standard for welded low carbon steel tubing with a controlled weld bead (flash-controlled) and normalised for demanding forming operations: bending, double flaring and beading. It is the reference when the component needs, at once, a clear bore and the ductility to be formed without failing at the weld.
What the standard specifies
SAE J356 defines a welded tubing in which:
- The internal weld bead is controlled (flash-controlled): the bead does not invade the bore, so the passage stays clear and forming operations do not concentrate stress at the weld.
- The material is normalised, for homogeneous behaviour in bending and flaring.
- The composition, mechanical properties and dimensions of the welded low carbon tubing are guaranteed.
It is the standard behind a welded tubing that behaves predictably in forming operations and that does not obstruct the bore. (Values by diameter, in the data sheet.)
Which Delmàs range meets SAE J356
It is, of the whole cluster, the most direct standard-to-range fit: SAE J356 describes exactly the OPTIM range (⌀ 3–10 mm), whose control of the internal weld bead ≤ 0.15 mm is the embodiment of the flash-controlledprinciple, together with the simultaneous control of bore and outer diameter.
Beyond the standard: your exact size
SAE J356 defines the type of tubing; your component defines the size and the forming. As a manufacturer —not a distributor with a closed catalogue—, we start from your drawing and adjust the size to the hundredth of a millimetre, with the controlled internal weld bead as standard, not as an extra. The standard is the starting point, not the limit.
Market, sectors and applications
A Americanstandard. It applies to components where the bore and the forming matter at the same time:
- Automotive — seat guides, mechanism shafts, components that are bent or flared.
- Engineering / Mechanical — shafts and sliding guides.
SAE J356 versus neighbouring standards
Why choose Delmàs as your tubing manufacturer
You need a tubing that does not obstruct the bore and withstands bending without opening at the weld. Send us the component and the intended forming. We prepare a physical OPTIM-range sample before committing to a production run.
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We have been manufacturers since 1956. Tell us what you need and our technical team will review your case, with no obligation and no minimum order quantity.
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