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Short Description:
GH696 is a deformed superalloy with molybdenum and niobium as the main strengthening element. The long-term service temperature is below 650 °C, and the short-term service temperature can reach 750 °C. The alloy has high yield strength, durability and creep strength, as well as good high temperature elastic properties, gas corrosion resistance and processing plasticity. It is suitable for manufacturing turbine and compressor fasteners, disk parts, and working blades, turbine casings, annular parts (including connecting rings) that work for a long time below 650 °C, and round-shaped spirals that work at 400 °C-650 °C spring etc.
Product Description
Characteristic:
The alloy has satisfactory oxidation resistance and gas corrosion resistance below 700 °C, and is resistant to stress corrosion in a salt spray atmosphere. The alloy has satisfactory corrosion resistance in all weather conditions. When the alloy is aged at 800ºC for a long time, a large number of rod-shaped Laves phases are precipitated in the grain boundaries and within the grains, which reduces the strength and toughness significantly.
Chemical Composition
| C | Cr | Ni | Mo | Al | Ti | Fe | Si | Mn | P | S | B |
|---|---|---|---|---|---|---|---|---|---|---|---|
| ≤0.1 | 10~12.5 | 21~25 | 1.0~1.6 | ≤0.08 | 2.6~3.2 | surplus | ≤0.6 | ≤0.6 | ≤0.02 | ≤0.01 | ≤0.02 |
Physical Properties
| Density | Melting range |
|---|---|
| 7.93 g/cm³ | - |
Mechanical Properties (Minimum value at 20℃)
| variety | Heat treatment method | Tensile strength σb/MPa | Yield strength σp0.2/MPa | Elongation σ5 /% | Shrinkage rate Ψ/% | Brinell hardness HBS |
|---|---|---|---|---|---|---|
| Cold rolled sheet | Supply status + （700-750）℃*（3-5）h/AC | ≥1175 | - | ≥8 | 35-40 | |
| Cold drawing | Supply status + （700-750）℃*（3-5）h/AC | ≥1275 | - | ≥8 | ≥20 | ≥40 |
- Bars & Rods & Foring Ring /Flanges
- Sheet & Plate
- Strip & Coil
- Welding Wire &Spring wire
- Seamless Tube & Welded Pipe
»Round Bar & Square Bar & Hexagon Bar
● Diameter : φ8～φ300mm Length:10mm-6000mm
● Hot forging, Hot Rolling, Cold Drawing
● Bright Surface, Polished Surface, Black Surface
»Tube & Pipe:Seamless Tube& Welded Pipe
● Cold Drawing Seamless Pipe： φ1.0～φ220mm
● Hot Extrusion pipe: φ50～φ250mm
● Others : U Blend Tube and Elbow
»Hot Rolled Plate & Cold Rolled Sheet
● Cold Rolling Sheet Thickness: ≦2.0mm Width:≦1500m
● Hot rolling Plate Thickness: ≧4.0mm Width: ≦2500m
»Strip & Tape Ribbon
● Thickness: ≧ 0.01mm Width: 15mm-300mm
● Cold rolling BA Strip, Hard & Soft Condition
»Straight Length Wire & Spool Wire
● Welding Wire: φ 0.1mm～6.0mm Cut length Rod: φ1.0～φ8.0mm
● Package : 5-25kg/Spool or Box
ApplicationsI
Similar alloys are widely used abroad to make various high-temperature parts of aero-engines, and have long-term and reliable use experience. Our country uses this alloy to make various parts such as quick-release rings, fasteners, springs, pipe joints, mounting seats and brackets on various engines