Maher: Material Focus – Alloy 718 (UNS N07718)

Published: 27th January 2021 | Issue 59

Despite the continuing uncertainty in the global economy, specialist Nickel Alloy stockist Maher are continuing to invest in stock material to supply our customers at home and abroad. The backbone of our stock is our extensive range of Alloy 718.

Alloy 718 is a high strength, corrosion resistant nickel chromium alloy, initially developed for the aerospace industry and still considered the material of choice for most aircraft engine components. Its excellent strength and corrosion resistance have been recognised by the oil industry and it is now widely used in this field.

Typical applications in the oil industry are gate valves, choke stems, fasteners, tubing hangers and fire safe valves. In the aerospace and power generation industries this grade is also used for gas turbines, aircraft engines, fasteners, and other high strength applications.

Our stock range covers popular sizes, starting at small fastener & stem diameters through to larger valve body & tubing hanger sizes, with fully traceable mill certification to BS EN10204/3.1 (upgradable to BS EN10204/3.2 on request). Primarily stocked in machined round bar, Maher also stocks a range of flat bar sizes and has considerable experience converting this material to rings, blocks, ground bar and other shapes through our own machine shop & network of approved subcontractors.

Maher’s 718 material is stocked in three heat treatment conditions: -

Solution annealed and aged in accordance with API 6ACRA & NACE MR0175
• Solution annealed in accordance with AMS 5662 & ASTM B637
• Solution annealed and aged in accordance with AMS 5663 & ASTM B637

We have onsite PCN and SNT Level II Inspectors if additional ultrasonic testing is required to meet customer requirements.

Please contact your usual account manager or sales@maher.com for any enquiries you may have for Alloy 718 or other Nickel & Copper Alloy material grades.

As a long-established stockist and machinist of high-strength, high-performance alloys for Oil & Gas, Aerospace, Naval & Marine, Defence, Power Generation and other special applications, we are able to assist you with material requirements for Nickel Alloys, Copper Alloys and other special steel grades. Our in-house services include cutting, first stage machining such as turning and boring, precision machining, heat treatment & NDT. Due to the stringent requirements of the industries we service, quality is fundamental to everything we do. Maher’s quality systems are fully certified to ISO 9001 and AS 9100 rev D and we hold full JOSCAR Stage 2 accreditation for naval & marine, aerospace, defence, and security applications. Supported by both customer and industry approvals, we deliver to the full supply chain, from OEMs to smaller machine shops. For more information, please visit www.maher.com.