What is the Werkstoff number for 17-4PH?

The Werkstoff number is 1.4542. The same grade may appear as 17-4PH, 1.4542 or both on the drawing.

In which condition is 17-4PH supplied?

Typically solution annealed or precipitation hardened. State the condition the certificate must carry.

Which dimensions can Industristål supply in 17-4PH?

17-4PH / 1.4542 as round bar typically Ø8–200 mm. Length is cut. The range is a delivery programme — not a stock statement.

Can Industristål supply a single piece in 17-4PH?

Yes. We also supply single pieces and small quantities with no minimum charge. You do not have to take a full commercial length.

Can the material be supplied with a 3.1 certificate?

Yes. EN 10204/3.1 can be supplied where relevant for 17-4PH. 3.2 is ordered before we lock the material.

Precipitation-hardening stainless steel

17-4PH / 1.4542 stainless steel

17-4PH / 1.4542 is a precipitation-hardened stainless steel. Strength is set by ageing (H900–H1150), not by classic QT alone.

Request a quote Send drawing – get a price +45 77 34 00 96

Delivery conditions: solution annealed or precipitation hardened
Also known as: 1.4542, X5CrNiCuNb16-4

Designations

W.Nr.: 1.4542
EN standard: X5CrNiCuNb16-4
Group: Stainless steel

What it is used for

Shafts, valves and highly stressed stainless parts.

Limits

316L when corrosion weighs more heavily than strength. 15-5PH when anisotropy needs to be reduced.

Delivery

We source 17-4PH from European mill partners as round bar, plate, flat bar, seamless tube, welded tube, cut to your dimensions and ship the certificate with the material. Typical condition: solution annealed or precipitation hardened. Standard: X5CrNiCuNb16-4. From a single cut piece to larger lots — with no minimum charge, so you do not have to buy a full commercial length to get what you need.

Certificates and documentation

17-4PH can be supplied with a material certificate to EN 10204, depending on producer, dimension and the requirements specified for the delivery. On stainless, the analysis and the delivery condition are what the certificate shows. If a specific test or an ageing/hardening condition is to be documented, it must be specified before we order. EN 10204 3.1 can be supplied on a wide range of our materials.

Dimension programme

Form	Range	Note
Round bar	Ø8–200 mm	Solution annealed unless otherwise stated on the PO.
Flat bar	Cut to order	Stainless flat.
Plate	2–50 mm thickness	State thickness and finish.
Seamless tube	Ø13.5–Ø508 mm	DN8–DN500. Wall up to 31 mm. ASME 1/4–16″.
Welded tube	Ø21.3–Ø610 mm	Welded stainless. Wall to ISO 1127. State whether the weld seam must be documented.
Fittings	Ø12–Ø2000 mm	ASME 1/2–60″ (Ø15–Ø1524 mm). Type A and B. Not a stock statement.
Flanges	Ø14–Ø2000 mm	ASME 1/2–60″ (Ø15–Ø1524 mm). PN 6–400. Not a stock statement.

The range is a delivery programme, not a stock statement. Length is cut to your drawing.

Frequently asked questions

What is the Werkstoff number for 17-4PH?: The Werkstoff number is 1.4542. The same grade may appear as 17-4PH, 1.4542 or both on the drawing.
In which condition is 17-4PH supplied?: Typically solution annealed or precipitation hardened. State the condition the certificate must carry.
Which dimensions can Industristål supply in 17-4PH?: 17-4PH / 1.4542 as round bar typically Ø8–200 mm. Length is cut. The range is a delivery programme — not a stock statement.
Can Industristål supply a single piece in 17-4PH?: Yes. We also supply single pieces and small quantities with no minimum charge. You do not have to take a full commercial length.
Can the material be supplied with a 3.1 certificate?: Yes. EN 10204/3.1 can be supplied where relevant for 17-4PH. 3.2 is ordered before we lock the material.

More grades and dimensions in Danish

Send your enquiry

State grade, dimensions and quantity — or attach a drawing. We reply with a quote.

Request a quote +45 77 34 00 96