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 elements6 elements | |||
| Ni | Nickel | Bal. | |
| Cr | Chromium | 19 – 22% | |
| Mo | Molybdenum | 1.8 – 2.3% | |
| Nb | Niobium | 0.9 – 1.3% | |
| Al | Aluminium | 0.35 – 0.75% | |
| Ti | Titanium | 0.35 – 0.75% | |
| Element | Name | Content % | |
|---|---|---|---|
| Minor & residual7 elements | |||
| Fe | Iron | ≤ 3% | |
| Si | Silicon | ≤ 0.8% | |
| Mn | Manganese | ≤ 0.4% | |
| C | Carbon | ≤ 0.08% | |
| Cu | Copper | ≤ 0.2% | |
| P | Phosphorus | ≤ 0.02% | |
| S | Sulphur | ≤ 0.012% | |
Mechanical minima by form
Guaranteed values differ by form, size and delivery condition; quotations confirm the specification, form, size and condition.
| Form | Condition | Rm MPa | Rp0.2 MPa | A ≥ % | Other requirements and notes |
|---|---|---|---|---|---|
| Hot-rolled plate | As delivered (solution treated 1050–1090 °C, air cooled) | ≥ 735 | — | ≥ 40 | Also specified: Reduction of area Z ≥ 45 % Tensile at 800 °C: tensile strength ≥ 245 MPa, elongation ≥ 40 %, reduction of area ≥ 50 %. |
| Cold-rolled sheet | As delivered (solution treated 1050–1090 °C, air cooled) | ≥ 735 | — | ≥ 40 | Tensile at 800 °C: tensile strength ≥ 245 MPa, elongation ≥ 40 %. Grain size No. 5 or finer. |
| Strip, t >0.25 mm | As delivered (solution treated 1050–1090 °C, air cooled) | ≥ 735 | — | ≥ 40 | Grain size No. 5 or finer. |
| Strip, t ≤0.25 mm | As delivered (solution treated 1050–1090 °C, air cooled) | ≥ 660 | — | — | Elongation is measured and reported, not an acceptance criterion. Grain size No. 5 or finer. |
Where this grade is recommended
Matched in 4 service conditions; ranks and scores computed from the condition-scoring matrix.
| Service condition | Industry | Temperature | Rank | Score |
|---|---|---|---|---|
| Furnace internals & fixtures | Furnaces & Vacuum | ≤ 900 °C | 8 / 12 | 87 |
| Exhaust & afterburner | Aerospace | 700 – 950 °C | 5 / 8 | 85 |
| Quench & carburising fixtures | Furnaces & Vacuum | 850 – 950 °C | 8 / 8 | 84 |
| Molten salt systems | Power & Nuclear | 290 – 565 °C | 4 / 4 | 80 |
Designations & equivalents
| GOST (Russia) | ≈ ХН75МБТЮ (ЭИ602) |
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
7 specifications. Name the standard and its edition on the order.
Guaranteed values and required tests differ between specifications — see Mechanical minima by form for the figures per form.
Frequently asked questions
What is GH3039?
GH3039 — Ni superalloys. Combustor and afterburner sheet, 850 °C class
What is the maximum service temperature of GH3039?
Typically about 850 °C; the practical limit depends on media, stress and design life — acceptance per the governing standard.
What is the tensile strength of GH3039?
The specified minimum tensile strength is 735 MPa for the main product form. Minima for other forms and sizes are listed under "Mechanical minima by form" on this page.
Which standards cover GH3039?
GB/T 14992 (superalloy designations & chemistry), GB/T 14995 (wrought superalloys — hot-rolled plate), GB/T 14996 (wrought superalloys — cold-rolled sheet and strip), GB/T 15062 (superalloy tube, general use), GJB 1952 (cold-rolled sheet, aerospace), GJB 3317 (hot-rolled plate, aerospace), GJB 3318 (cold-rolled strip, aerospace)
Where is GH3039 typically used?
Furnace internals & fixtures (Furnaces & Vacuum); Exhaust & afterburner (Aerospace); Quench & carburising fixtures (Furnaces & Vacuum); Molten salt systems (Power & Nuclear)
In which forms is GH3039 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