Sourcing Titanium for Canadian Pressure Equipment: ASME Codes, CRN and the Certificate Chain

A Canadian buyer specifying titanium for a heat exchanger, reactor or pressure vessel is working inside a paperwork chain that a mill quote written to plain ASTM does not always speak to directly. Pressure equipment used in Canada is built to the ASME Boiler and Pressure Vessel Code, registered province by province through a Canadian Registration Number, and inspected against material records that trace back to the mill certificate. This guide sets out how ASME adopts the ASTM titanium standards, where the CRN process fits, which grades suit the common Canadian duties, and what a buyer should ask a non-Canadian mill for so the material drops cleanly into that chain. It is written for industrial and process service; military and defence-related sourcing sits under the Controlled Goods Program and is out of scope here.

ASME adopts the ASTM titanium standards as SB specifications

The point that trips up a first-time titanium buyer in Canada is that the material standard on the pressure-vessel drawing is usually not the ASTM B number, it is an ASME SB number, and the two are the same document. ASME Section II Part B adopts the ASTM titanium specifications with an S prefix, so the mill can certify to the ASTM standard and the fabricator can use it under the code.

For a purchase order this matters in practice: if the drawing calls for SB-265 Grade 2 plate, ASTM B265 Grade 2 is the same metal, but for code work fabricators usually want the mill test certificate dual-marked to B265 and SB-265, not to the ASTM number alone, and they confirm the ASTM edition is one ASME accepts. Naming the SB specification on the RFQ, and asking the mill to certify the material to B265/SB-265, removes a common source of rejected paperwork.

Where the Canadian Registration Number fits

Pressure-retaining equipment operated in Canada normally needs a Canadian Registration Number before it goes into service, registered with the provincial authority for the jurisdiction, such as ABSA in Alberta or the TSSA in Ontario. The CRN registers the design of the vessel, exchanger or fitting, and the registration relies on the material meeting the ASME code requirements with proper material test reports behind it.

The distinction that matters for a mill quote is who owns which step. The fabricator or design house registers the CRN and is responsible for the design; the mill supplies material certified to the code-referenced standard, with a material test report that ties the delivered heat to its chemistry and mechanical results. Beiyu supplies titanium bar, plate and tube certified to the ASTM standards that ASME adopts, with EN 10204 3.1 mill test certificates and heat-number traceability by order scope, which is the material record a fabricator carries into a CRN submission. A mill does not issue a CRN, and any supplier that offers to sell you one for the metal itself has misunderstood the process.

Which titanium grade for which Canadian duty

Grade selection follows the service, not the region. The common industrial duties in Canadian chemical, energy and mining plants map onto a short list of grades.

• Grade 2 (CP, UNS R50400). The workhorse for general chemical service, seawater and oxidizing conditions, and the default for heat-exchanger and vessel work where high strength is not the driver. The Grade 2 chemical and heat-exchanger guide covers this case in detail.
• Grade 7 (R52400). Grade 2 with a small palladium addition for reducing acids such as sulfuric and hydrochloric, used where Grade 2 alone would corrode. See Grade 7 for reducing acids.
• Grade 12 (R53400). For hot brines and tight-crevice chloride service where crevice corrosion is the failure mode, a common concern in energy and mineral processing. See Grade 12 for hot brine and crevice corrosion.
• Grade 5 (Ti-6Al-4V, R56400). Where the component is load-bearing and needs high strength rather than maximum corrosion margin.

For seawater and coastal service, which matters on both Canadian coasts, the titanium seawater corrosion notes set out why commercially pure titanium holds up where stainless pits.

What to ask a non-Canadian mill

The way to compare a non-Canadian titanium offer against local supply is to hold everything except origin constant and confirm the certificate chain lines up with the code work.

• Standard and adoption. Confirm the mill will certify to the ASTM standard your drawing adopts as SB, for the exact form.
• Zeugnisart. State the required EN 10204 document type in the material specification and purchase order, and confirm the reporting scope before order release. Type 3.1 is validated by the manufacturer’s authorised inspection representative independent of the manufacturing department; type 3.2 adds either the purchaser’s authorised inspection representative or the inspector designated by the applicable official regulations.
• Heat traceability. The material test report should tie each item to a heat number, because that record is what the fabricator carries into the CRN and the vessel data report.
• Landed cost. Freight, duty, currency and documentation belong in the comparison, not just the ex-works price. The background on what moves titanium prices explains why two quotes for the same grade still differ.

The most reliable comparison puts the same specification to both sources: grade and standard, dimensions and tolerance in metric with the ISO tolerance class, quantity, surface condition and the certificate type. The full field list is in our Checkliste für Titanstab-Anfragen.

FAQ

Does ASME accept titanium certified to ASTM B265?

ASME Section II Part B adopts ASTM B265 as SB-265, so B265 plate is the same material the code references as SB-265, and the same holds for bar as SB-348 and tube as SB-338. For code work, ask the mill to dual-certify the material to B265/SB-265 rather than the ASTM number alone, and confirm the ASTM edition is one ASME accepts, because fabricators check both before accepting the certificate.

Can titanium from a non-Canadian mill be used in CRN-registered equipment?

Yes. The Canadian Registration Number registers the design of the pressure-retaining item, and the material requirement is that it meets the ASME code standard with a material test report behind it. A non-Canadian mill can certify titanium to the ASTM standard ASME adopts, with EN 10204 3.1 documentation and heat traceability; the fabricator or design house handles the CRN registration itself.

What titanium grade is used for chemical pressure vessels in Canada?

Grade 2 commercially pure titanium is the usual choice for general chemical and heat-exchanger service. Grade 7 is specified for reducing acids, and Grade 12 for hot brine and crevice-prone chloride service. Grade 5 is used where the part is load-bearing and needs high strength rather than maximum corrosion resistance.

What certificate do Canadian pressure-equipment buyers need for titanium?

The inspection-document type is a purchase-order decision, not a default. A type 3.1 inspection certificate reports the specific-inspection results for the delivered products and is validated by the manufacturer’s authorised inspection representative independent of the manufacturing department. A type 3.2 certificate adds either the purchaser’s authorised inspection representative or the inspector designated by the applicable official regulations. A type 3.1 certificate carries the manufacturer’s declaration that the supplied products comply with the order; in a type 3.2 certificate that declaration is made jointly by the manufacturer’s inspection representative and the purchaser’s representative or the designated inspector. Witness and hold points are set by the inspection and test plan rather than by EN 10204 itself, so agree them alongside the document type before order release.

Request a quote for titanium into Canadian pressure equipment

To quote titanium for Canadian pressure and process equipment, state the grade, ASME-adopted material specification, form, metric dimensions and tolerance, quantity, surface condition and required inspection-document type. Review the Titanbleche und Titanplatten und Titanrohre und Rohrleitungen routes for the relevant product form; specify Titan-Rohrformstücke to ASTM B363 separately when fittings are part of the pressure boundary. Beiyu confirms the certificate and heat-traceability scope in the quotation and purchase order before release. Kontaktieren Sie Beiyu Titanium für eine Anfrage.