What does your CSA N299.4-16 registration cover?

N299.4 is the Category 4 quality-assurance program for supplying items to Canadian nuclear facilities, written for distributors of commercial-grade and balance-of-plant material. It governs how material identity, segregation, inspection and records are controlled through our warehouse. The registration is issued through CWB and subject to periodic surveillance.

Can you supply safety-related or Category 1 nuclear items?

Not under our current registration. We are a distributor holding CSA N299.4, not a Category 1 safety-related supplier and not an ASME N-stamp holder. If your item requires safety-related procurement or commercial grade dedication, tell us at RFQ stage and we will say plainly whether we can support it.

Will you review our quality clauses before quoting?

Yes. Send the clauses with the RFQ. Our quality team reads them before we commit material and flags at quote stage anything outside what we can support, which prevents most receiving-dock problems on nuclear orders.

How long do you retain nuclear documentation?

Records are controlled and retained under our quality program so certified copies can be re-issued long after a job closes. Confirm your specific retention requirement on the purchase order and we will match it.

Can you supply EN 10204 3.1 or 3.2 certification?

Tell us which format your program requires at RFQ stage, along with who needs to sign it. Certification format restricts which heats and mills are acceptable, so it must be established before sourcing rather than after.

Will cut parts keep their traceability?

Yes. Waterjet and plasma cutting are done in-house from our own stock plate, so finished parts carry the heat number of the material they came from, with no subcontractor record-keeping to qualify separately.

Industrial piping and alloy stock, Sarnia Ontario

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CSA N299.4-16 Registered

Nuclear Supply Chain Material

Q: Do you work directly with utilities or through contractors?

We are set up to supply either. In practice it is usually the contractors and fabrication shops that need a registered supplier standing behind their bid, which is what our CSA N299.4 registration is for.

Q: Where does Huron Alloys ship from, and how fast?

Everything ships from our own warehouse in Sarnia, Ontario, within a day's drive of most of the province. Same-day shipment is available on in-stock items, and we deliver Canada-wide.

Nuclear work runs on paperwork. We're registered, audited and set up for it — stainless, nickel alloy and chrome moly, with a full paper trail from the mill to your receiving dock.

CSA N299.4-16 · CWB Registered The quality program for supplying items to Canadian nuclear plants — audited by an outside body, certificate on file.

Download N299.4 Certificate

N299.4CSA registered to supply items to Canadian nuclear plants

ISO 9001:2015Quality system, certified by an outside auditor

100%Orders ship with heat-numbered mill test reports

43+Years supplying Ontario industry from Sarnia

The Qualification

Our Nuclear Qualification

Program Scope

The Category 4 quality program for supplying nuclear plants — written for distributors handling commercial-grade and balance-of-plant material.

Independent Audit

Issued and kept current through CWB, with regular audits. The number on the certificate can be verified by your team.

Daily Practice

Checked against its MTR on arrival, kept separate by lot in the racks, and stamp matched to paperwork before it leaves.

The Package

The Documentation Package

Mill Test Reports

Chemistry, strength figures, heat number and the spec it was made to — sent automatically with every order.

Certificate Verification

We check the heat number on the paperwork against the stamp on the metal before it leaves the building.

Quality Clause Review

Our quality team reads your clauses before we commit material, and flags anything we can’t meet at quote stage.

Record Retention

Records stay on file, so a certified copy can be re-issued long after the job closes.

Read our quality policy

Materials

Materials We Stock

Grade	Forms stocked	Availability
304 / 304L	Pipe · Butt-weld fittings · Flanges · Pressure fittings · Plate · Sheet · Bar · Tube · Nipples	In stock
316 / 316L	Pipe · Butt-weld fittings · Flanges · Pressure fittings · Plate · Sheet · Bar · Tube · Nipples	In stock
347	Pipe · Butt-weld fittings · Plate · Bar	In stock
321 / 321H	Pipe · Butt-weld fittings · Flanges · Tube	In stock
Inconel 600	Pipe · Fittings · Plate · Bar	Limited — call
Incoloy 825	Pipe · Butt-weld fittings · Flanges · Plate · Tube	In stock
Monel 400	Pipe · Fittings · Flanges · Plate · Bar	In stock
Duplex 2205	Pipe · Butt-weld fittings · Flanges · Plate · Bar	In stock
P11 / P22	Pipe · Butt-weld fittings · Flanges	In stock

Stock status is a guide, not a live feed — sizes and schedules vary by grade. Send your bill of material and we'll confirm what's on the floor, usually within the hour.

Check our stainless steel, chrome moly, aluminum, nickel alloy and waterjet cutting pages for more information

Before You Order

Purchase Order Requirements

01Quality clauses

The full clauses, so our quality team can read them before we commit material.

02Governing specification

The ASTM or ASME spec and its edition, plus any extra requirements.

04Approved manufacturer list

If mills are restricted, send the list. AML's and restriction are our specialty.

05Marking & identification

The stencilling, heat marking and package labels your receiving team needs.

06Retention & submittal

Where the paperwork goes, in what format, and how long you need it kept.

For Vendor Qualification

Certificates On File

CSA N299.4-16

The quality program for supplying items to Canadian nuclear plants, registered through CWB and audited regularly.

View certificate (PDF)

ISO 9001:2015

Our quality system for labelling, storing and tracing material from the moment it arrives to the moment it reaches you.

View certificate (PDF)

Processing

In-House Processing

Waterjet Cutting±0.005″, no heat-affected zone — shims, gaskets, baffles, cover plates HD Plasma CuttingThick plate to ±0.015″ — supports, base plates, structural

Stainless and nickel alloy stock at Huron Alloys, Sarnia

Alloy stock staged for despatch, Huron Alloys Sarnia

Material without a paper trail is just expensive scrap.

CSA N299.4-16 · ISO 9001:2015 · Sarnia, Ontario

Common Questions

Frequently Asked Questions

N299.4 is the Category 4 quality program for supplying items to Canadian nuclear plants — written for distributors handling commercial-grade and balance-of-plant material. It covers how we label, store, inspect and record material in the warehouse. It's registered through CWB and audited regularly, and the certificate is downloadable above.

Yes, and we'd rather see them with the RFQ than after the PO lands. Our quality team reads them before we commit material and flags anything we can't meet at quote stage. That one step heads off most of the receiving-dock problems nuclear orders run into.

We keep records on file under our quality program, so we can re-issue certified copies long after a job closes. When an auditor asks about a heat installed years ago, it should be a phone call. Tell us how long you need records kept on the PO and we'll match it.

We're set up to supply either. In practice it's usually the contractors and fabrication shops that need a registered supplier standing behind their bid — if that's you, that's exactly what our N299.4 registration is for.

Yes. Waterjet and plasma cutting happen here, from our own stock plate, so finished parts keep the heat number of the plate they came from. Nothing goes to an outside shop whose record-keeping you'd then have to approve separately.

Everything ships from our own warehouse in Sarnia, Ontario — within a day's drive of most of the province. Same-day shipment on in-stock items, and we deliver Canada-wide.

Also Served

01Oil & Gas 02Chemical Processing 05Power Generation All industries →

CSA N299.4-16 · ISO 9001:2015 · Sarnia, Ontario

Send The Clauses With The Spec

Send the bill of material, the spec, and your quality requirements. Our team reviews them before we quote — so what arrives is what your auditor expects.

Call 519-336-1556

Outage support, 24/7: 1-844-201-9051