Heat-resistant stainless steel
TP310HCbN / 1.4952 stainless steel
TP310HCbN / 1.4952 is 25-20 with Nb and N for very high steam temperatures.
- Delivery conditions
- solution annealed
- Also known as
- 1.4952, X6CrNiNbN25-20, S31042, 310HCbN
Designations
- W.Nr.
- 1.4952
- EN standard
- X6CrNiNbN25-20
- Group
- Stainless steel
What it is used for
Superheaters in ultra-supercritical boilers.
Limits
310S when HCbN is not required. P92 when it is 9 % Cr and not austenite.
Delivery
We source TP310HCbN 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. Standard: X6CrNiNbN25-20. 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
TP310HCbN 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.
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Send your enquiry
State grade, dimensions and quantity — or attach a drawing. We reply with a quote.