ST37 / S235JR Structural Steel
ST37 / S235JR Structural Steel is supplied for mechanical engineering and serial production applications where the grade, delivery condition, dimensional tolerance and traceability must be specified together. Erkal Haddecilik supplies cut-to-length steel from Bursa subject to stock.
Key properties
- Specify the complete S235 grade and product standard; ST37 alone is insufficient.
- JR, J0 and J2 carry different impact requirements; do not substitute them automatically.
Typical applications
- Welded machine frames, subject to material and welding-procedure checks.
- General structural components selected to drawing and loading requirements.
ST37 / S235JR structural steel: designation and ordering
ST37 is an older or commercial designation; S235JR is a specific modern designation. Do not omit the grade suffix, product standard or delivery condition when converting an old drawing into a purchase specification.
For welded structures or machine frames, state the product form, thickness or section, welding requirements and certificate specification. A trade name alone does not define impact-test conditions.
Supply and cutting enquiries from Bursa
Erkal Haddecilik handles material and cut-to-length enquiries from Bursa/Nilüfer for projects in Türkiye. Send the grade specification, dimensions, quantity and delivery location; availability, cutting details, shipment and timing are confirmed in the quotation, not guaranteed by this page.
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Technical selection note
Steel grades must not be considered exact equivalents based on similar names alone. Chemical composition, mechanical properties, product standard, delivery condition and heat treatment requirements must be verified against the certificate.
Salzgitter identifies S235JR / 1.0038 and the historical St37-2 reference. The source concerns flat products; its mechanical values are not universal bar properties.
Frequently Asked Questions
Technical selection note
Material equivalence, mechanical properties and heat treatment must be verified against the applicable standard and material certificate before critical use.