Steel Knowledge · Material grades
P235TR1 denotes a pressure-tube grade for applications with specified room-temperature properties and TR1 quality requirements.
TR1 identifies a particular quality designation; it should not be omitted when preparing a supplier enquiry.
Include the exact grade, product route and product standard, dimensions and inspection certificate requirements.
TR1 and TR2 are distinct quality levels; a change should be approved against the technical specification.
Related catalogue context is not a certification statement. Validate process, edition, product scope and the supplier's actual offer.
These are references from the governed public source record, not a statement of equivalence or current certification.
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