High-Temperature Alloys / Superalloys
GH2132 (A-286) (UNS S66286) — Composition, Properties & Supply
GH2132 is an iron-nickel-chromium precipitation-hardening superalloy (equivalent to A-286). Below 650 °C it offers high yield strength and creep resistance with good oxidation resistance at moderate cost, making it the principal Chinese grade for aero-engine and gas-turbine fasteners and discs.
What is the chemical composition of GH2132 (A-286)?
| Element | Symbol | Content (wt%) |
|---|---|---|
| Fe | Fe | Balance |
| Ni | Ni | 24.0–27.0 |
| Cr | Cr | 13.5–16.0 |
| Ti | Ti | 1.75–2.30 |
| Mo | Mo | 1.00–1.50 |
| V | V | 0.10–0.50 |
| Al | Al | ≤ 0.40 |
| B | B | 0.001–0.010 |
| C | C | ≤ 0.08 |
Values are typical specification limits. Actual heat analysis is reported on the EN 10204 3.1 mill test certificate supplied with each shipment.
What are the mechanical properties of GH2132 (A-286)?
| Property | Value | Note |
|---|---|---|
| Tensile strength | ≥ 930 MPa (aged) | Room temperature |
| Yield strength (0.2% offset) | ≥ 660 MPa (aged) | Room temperature |
| Elongation | ≥ 15 % | Gauge length 50 mm / 4D |
| Hardness | ≥ 28 HRC | Brinell / Rockwell |
What are the physical properties of GH2132 (A-286)?
| Property | Value |
|---|---|
| Density | 7.93 g/cm³ |
| Melting range | 1364–1424 °C |
| Thermal conductivity | 15.1 W/m·K |
| Elastic modulus | 201 GPa |
| Maximum service temperature | 650 °C |
What are the key characteristics of GH2132 (A-286)?
- Yield ≥ 660 MPa below 650 °C
- Oxidation resistant to about 815 °C
- γ′ (Ni₃Ti/Al) precipitation strengthening
- Highly localised supply with short lead times
Where is GH2132 (A-286) used?
- Aero-engine discs, blades and fasteners
- Gas turbine high-temperature bolting and springs
- Automotive turbocharger wheels and exhaust parts
- High-temperature petrochemical equipment
Which standards and specifications cover GH2132 (A-286)?
- GB/T 14992
- GB/T 14994
- GJB 3165
- AMS 5731
What product forms are available?
Frequently asked questions
How do I choose between GH2132 and GH4169 (Inconel 718)?
GH2132 is iron-base with good strength below 650 °C at roughly 50–60% of GH4169's cost. GH4169 is nickel-base with higher strength below 650 °C, better weldability and fatigue resistance, and excellent cryogenic toughness. Choose GH4169 for highly stressed, long-life or welded critical parts, and GH2132 for volume fasteners and mid-temperature components where economy matters.
Need GH2132 (A-286) bar, tube, plate or forgings?
Send the grade, dimensions, standard and quantity. We answer within 10 minutes on working days and quote within 24 hours, with EN 10204 3.1 certification.
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