Nimonic 80A Turbine Alloy Guide - Heat Treatment, Creep & Blade Applications
Date: 2026年8月17日 Categories: News Views: 214
By Shanghai Hangbo Alloy Group Co., Ltd. - China Supplier | ISO 9001:2015 | Est. 2012
Contact: sales@hangboalloy.com | hangbo@nickel-alloy.com | WhatsApp (Lisa): +86 13611656360
Quick Answer: What Heat Treatment Does Nimonic 80A Need?
Nimonic 80A (UNS N07080) requires a two-step cycle: Solution anneal at 1080C for 8 hours + air cool, then age at 700C for 16 hours + air cool. This precipitates the γ′ (Ni₃(Al,Ti)) phase that delivers 1,000+ MPa tensile with creep resistance to 815C. It is the standard alloy for gas turbine blades, turbine discs, and high-temperature fasteners operating to 750-815C. Shanghai Hangbo Alloy Group supplies Nimonic 80A in bars, forgings, and wire per AMS 5845/5666-class specifications.
The Heat Treatment Cycle (Why Both Steps Matter)
| Step | Temperature | Time | Cooling | Purpose |
|---|---|---|---|---|
| Solution | 1080C (1975F) | 8 h | Air cool | Dissolve γ′, control grain size |
| Age | 700C (1290F) | 16 h | Air cool | Precipitate fine γ′ for strength |
Alternative: 1025C solution for finer grain (better fatigue) at slightly lower creep strength.
Mechanical Properties (After Full Heat Treatment)
| Property | 20C | 650C | 750C |
|---|---|---|---|
| Tensile (MPa) | 1000-1200 | 850 | 700 |
| Yield (MPa) | 600-700 | 550 | 480 |
| Elongation (%) | 20-30 | 20 | 15 |
Creep Strength (The Key Number)
| Temperature | 1000-h Rupture (MPa) | 10000-h Rupture (MPa) |
|---|---|---|
| 650C | 460 | 380 |
| 750C | 230 | 170 |
| 815C | 110 | 70 |
Nimonic 80A vs Inconel X-750 (Selection)
| Property | Nimonic 80A | X-750 |
|---|---|---|
| Tensile (aged) | 1000-1200 MPa | 1000-1200 MPa |
| Creep at 750C | Better | Good |
| Relaxation resistance | Excellent | Good |
| Price | Baseline | Similar |
| Best use | Turbine blades, bolts | Springs, fasteners, nuclear |
Rule: 80A for creep-critical turbine blades; X-750 for spring/fastener service.
Product Forms & Standards
| Form | Standard |
|---|---|
| Round Bar | AMS 5845, BS HR601 |
| Forging Stock | AMS 5845 |
| Wire | AMS 5850 |
| Sheet & Strip | AMS 5557 |
Price Guide (2026, EXW)
| Form | Price |
|---|---|
| Round Bar Ø25-100 mm | \$45-70/kg |
| Forging Stock | \$48-75/kg |
| Wire Ø2-5 mm | \$55-80/kg |
Fabrication Notes
- Forge: 1050-1180C, finish above 950C.
- Weld: Limited — GTAW with matching filler, re-age after.
- Machine: Carbide tools, low speed, flood coolant.
Why Buy From Shanghai Hangbo?
- AMS 5845-class bars/forgings in stock.
- EN 10204 3.1 MTC with heat treatment records.
- Full heat treatment performed in-house on request.
- SGS/TUV/BV inspection.
- 40+ countries shipped.
Contact & Complete Product Range
Shanghai Hangbo Alloy Group Co., Ltd. - China Supplier
Email: sales@hangboalloy.com | WhatsApp (Lisa): +86 13611656360 | www.nickel-alloy.com
All Grades
Ni: NI200-N6 | Monel: 400-502, K-500, R-405 | Inconel: 600-740H, X-750, 725 | Incoloy: 800-27-7MO | Hastelloy: C-276-HYBRID-BC1, N | Super Austenitic: 904L-AL-6XN | Chromium-Rich: Alloy 33 | High-Strength Stainless: Nitronic 50/60, PH13-8Mo | Chlorination: Alloy 45 | Nimonic: 75-263 | Haynes: 25-HR-160 | RA: 330/333 | Precision: 1J22-4J45 | High-Strength: 18Ni250-AerMet100 | Heating: Cr20Ni80/60 | Specialty: Alloy 20-602CA
Product Forms: Bars(6-500mm) | Tubes(OD 6-610mm) | Plates(0.1-100mm) | Forgings | Welded Pipes | Fittings | Wire(0.05-10mm) | Strip(0.02-4.0mm)
SGS/BV/TUV. www.nickel-alloy.com
