Alloy 718 API & CRA 6A
Alloy 718 is a high yield, corrosion resistant alloy from Broder Metals Group. Typical applications range from engine parts to fasteners within aerospace and oil and gas markets.
- API 6A 718 (December 2009)
- ASTM B637
- AMS 5662
- AMS 5663
- UNS N07718
- NACE MR0175 / ISO 15156-3
Same day quote, next day dispatch
Make an Enquiry
Broder Metals Group stocks Alloy 718 in sizes from 1/2″ (12.7 mm) to 8″ (203.2 mm) backed up by key sizes above this core range. Our stock is bought to API 6A 718 and NACE and as such meets most application uses for the oil industry to maximise resistance to stress corrosion cracking or treated to give maximum strength and high creep resistance and weldability.
Nominal Chemical Composition by Percent
| Ni | Cr | Fe | Cb+Ta | Mo | Ti | Al | C | Co | Mn | ||
| Min | 50.0 | 17.0 | Bal | 4.87 | 2.80 | 0.8 | 0.4 | - | - | - | % |
| Max | 55.0 | 21.0 | - | 5.2 | 3.30 | 1.15 | 0.6 | 0.045 | 1.0 | 0.35 | % |
Alloy 718 Chemical Composition
| Si | P | S | B | Cu | Pb | Se | Bi | Ca | Mg | ||
| Min | - | - | - | - | - | - | - | - | - | - | % |
| Max | 0.35 | 0.01 | 0.01 | 0.006 | 0.23 | 0.001 | 0.0005 | 0.00005 | 0.003 | 0.006 | % |
Alloy 718 Mechanical Properties
| Solution Annealed & Precipitation Treated (Aged) | KSI | Mpa | % | |
| Tensile Strength, min | 150 | 1034 | - | |
| Yield Strength (0.2% offset) range | 120 - 145 | 827 - 1000 | - | |
| Elongation in 2" (or 50mm) or 4D, min | - | - | 20 | |
| Reduction of area min | - | - | 35* | |
| Hardness (Rockwell) | - | - | - | 32 - 40 HRC 298 - 363 HBW |
| Grain size (ASTM E112) | 2 or finer | |||
| Charpy V Notch | Test Temperature: - 60°c < 76.2 mm - longitudinal, min single 61 J, Average 68 J 76.2 - 254 mm - transverse, min single 47 J |
|||
For more technical information download our 718 information sheet here
Applications:
Alloy 718 is prevalent within oil and gas and aerospace markets.
Ideal applications are:
- within oil tools
- gate valves
- choke stems
- fasteners
- turbines
- engine parts
“Every player in the industry needs to offer something different, something new. For Broder Metals Group it’s simple… it’s four specialist divisions each with a compelling offer in terms of product, price and delivery. But most of all, it’s our people. They’re extraordinary”.
Proud Associates
