| FOR REQUIREMENTS: | Stainless Bearing Steel, High-Nitrogen (CREN) |
| MELT PRACTICE: | ESR |
| SPECIFICATIONS: | AMS5925 X40CrMoVN16-2 UNS : S42025 Euro Number: 1.4123 Boeing: BMS 7-357 ASTM F899 |
Get XD15NW® at Sullivan Steel
XD15NW® ((X40CrMoVN16-2; AMS 5925) is currently available at Sullivan Steel in electro-slag remelted (ESR) bar stock from 0.1496" (3.8mm) to 7.992" (202mm). Get in touch with our experts to request a quote or inquire about XD15NW®.
Chemical Composition
| C | Si | Mn | Cr | Mo | V | N | Ni | |
|---|---|---|---|---|---|---|---|---|
| min. | 0.37 | – | – | 15.00 | 1.50 | 0.20 | 0.16 | – |
| max. | 0.45 | 0.60 | 0.60 | 16.50 | 1.90 | 0.40 | 0.25 | 0.30 |
Heat Treatment
HRC of at least 58 after tempering at low (around 180°C/360°F) and high (500°C/932°F) temperatures. Low residual austenite after heat treatment in order to ensure a high dimensional stability of the parts. Heat treatment is relatively simple, utilizing standard equipment.
Comparisons to Other grades
XD15NW® is often used as an improvement over 440C and as an alternative to AMS 5898.
The photo below compares XD15NW® corrosion resistance to 440C (X105CrMo17). While 440C offers great general corrosion resistance, XD15NW® has superior resistance in highly corrosive environments.
Corrosion Resistance Comparison (XD15NW® vs. 440C) – Aspect of the surface after 96 h salt spray (NaCl) exposure. For both grades, heat treatment cycle: 1050 °C Oil/ -75 °C/ 180 °C
This high corrosion resistance makes XD15NW® a viable alternative to AMS 5898 in many critical aerospace applications.
Applications
XD15NW® is most associated with aerospace manufacturing, but it also has applications in medical and food & beverage equipment manufacturing and in cryogenic environments. In the medical industry, for example, XD15NW® is valued as an autoclavable steel grade well-suited for frequent sterilization.
Common components using XD15NW® include:
- Bearings (ball, roller and spherical)
- Ball and roller-screws
- Rod Ends
XD15NW® Resources
- XD15NW® Datasheet
- XD15NW® Brochure
- XD15NW® manufacturing example in detail from Enduro Bearings
- A Comparison of the Mechanical and Physical Properties of Contemporary and New Alloys for Aerospace Bearing Applications
Expert Support & Service for XD15NW®
Sullivan Steel is the exclusive North American distributor for XD15NW®, and our team has extensive experience working with the grade. Have questions before you get started? Request a quote and include your questions, and we’ll get one of our XD15NW® experts in touch with you.
