Chemical composition
Nominal: mid-range where both limits are given, the cap where only a maximum is, balance takes the remainder. Exact specified ranges below.
| Element | Name | Content % | |
|---|---|---|---|
| Main elements8 elements | |||
| Ni | Nickel | Bal. | |
| Cr | Chromium | 14 – 16% | |
| Co | Cobalt | 13 – 15.5% | |
| Al | Aluminium | 4.5 – 5.5% | |
| Ti | Titanium | 3.5 – 4.5% | |
| Mo | Molybdenum | 3 – 5% | |
| C | Carbon | 0.12 – 0.2% | |
| B | Boron | 0.01 – 0.025% | |
| Element | Name | Content % | |
|---|---|---|---|
| Minor & residual6 elements | |||
| Fe | Iron | ≤ 1% | |
| Mn | Manganese | ≤ 1% | |
| Si | Silicon | ≤ 1% | |
| Cu | Copper | ≤ 0.2% | |
| Zr | Zirconium | ≤ 0.15% | |
| S | Sulphur | ≤ 0.015% | |
Where this grade is recommended
Matched in 2 service conditions; ranks and scores computed from the condition-scoring matrix.
| Service condition | Industry | Temperature | Rank | Score |
|---|---|---|---|---|
| Engine hot section | Aerospace | 900 – 1100 °C | 2 / 9 | 89 |
| Engine & exhaust valves | Automotive & Racing | 750 – 900 °C | 4 / 7 | 85 |
Designations & equivalents
| W.Nr. (Germany) | 2.4636 |
| Trade name(s) | Nimonic 115 |
| BS (UK) | HR 4 |
Cross-references are common near-equivalents for search and shortlisting; substitution across standards requires clause-by-clause verification. All grades in one cross-reference table →
Applicable standards
Name the standard and its edition on the order.
Frequently asked questions
What is Nimonic 115?
Nimonic 115 — Ni superalloys. The strongest Nimonic — gas-turbine blades to the 1000 °C class
What is the maximum service temperature of Nimonic115?
Typically about 1010 °C; the practical limit depends on media, stress and design life — acceptance per the governing standard.
Which standards cover Nimonic115?
BS HR 4 (billet, bar, forgings & parts)
Where is Nimonic115 typically used?
Engine hot section (Aerospace); Engine & exhaust valves (Automotive & Racing)
In which forms is Nimonic115 available?
Tube, plate, strip, bar, forgings, wire and other forms — sizes and delivery condition confirmed per order, with EN 10204 3.1 / 3.2 certification.
Same series
Download PDF datasheet
This grade’s datasheet as an A4 PDF — for filing, printing or forwarding to colleagues.
Download PDF datasheetSupply & enquiry
Tube & pipeφ1 – 219 × 0.25 – 25 mm
Plate4.76 – 80 mm
Barφ8 – 300 mm
Wire & filler metalsφ0.01 – 8 mmFor this grade we can supply, against your service conditions:
- Tube, plate, strip, bar, forgings, wire and more — with size range and lead time
- Chemistry and mechanical test report (EN 10204 3.1 / 3.2)
- Like-for-like alternatives and selection advice
- Applicable standards and inspection scope
Or email us: info@kochlin.com