Stainless steel
1.4313 / F6NM stainless steel
1.4313 is a 13-4 martensitic stainless steel, EN X3CrNiMo13-4. F6NM and CA6NM point to the same family. Tough, hardenable, used for pumps and hydro-related components. INDUSTRISTÅL supplies bar with 3.1. 1.4418 when 16-5-1 is specified.
Typical applications
- Pumps
- Valves
- Hydro and turbine-related components
Delivery conditions
- +QT or annealed according to certificate
Designations
- W.Nr.
- 1.4313
- EN standard
- X3CrNiMo13-4
- Group
- Stainless steel
Machinability and weldability
Yes, with a procedure. It is not 304 welding.
Sawing and machining
Sawing. State the condition – annealed or +QT.
Certificates and documentation
EN 10204 3.1 as standard.
Dimension programme
| Form | Range | Note |
|---|---|---|
| Round bar | Ø40–250 mm | F6NM. Typically +QT. |
| 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. |
Parts of the range are held by European partners; other dimensions can be sourced. The range is not a current stock status in every diameter — stock is confirmed on enquiry.
Frequently asked questions
- What is 1.4313?
- 13-4 martensitic stainless steel. F6NM is the American name.
- Is F6NM the same as 1.4313?
- Close family. Both searches land here, and we write the W.Nr. the certificate can carry.
- Do you supply 1.4313 round bar?
- Yes. State Ø and condition.
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Send your enquiry
State grade, dimensions and quantity — or attach a drawing. We reply with a quote.