Getting vendor approval from companies such as Boeing, Lockheed Martin, and Honeywell Aerospace involves a rigorous review of Nevada Heat Treating’s (NHT) plant, equipment and personnel. Designing and manufacturing jet engines and other sophisticated equipment requires exacting standards and a dedication to quality that will never be compromised. Because of this, NHT strictly adheres to rigorous Nadcap standards. Nadcap is a 3rd party industry-managed quality assessment program that streamlines the accreditation process for material testing, heat treating, chemical processing, welding and other similar services. It is nationally recognized as the gold standard for the aerospace parts and commercial machining industries.
There are approximately 20 different processes accredited under the Nadcap umbrella. The AMS-2750 Rev. E, pyrometry/calibration specification is particularly substantial for services rendered by NHT because it verifies that NHT’s furnaces meet temperature uniformity requirements in a specific work zone. Within the AMS-2750, there are several different classes based on furnace instrumentation type. The AMS-2750 acts as the cornerstone specification for other aerospace specifications that contain heat treating processes, such as material specifications.
In addition to AMS 2750, NHT is accredited in the following standards:
- AMS-2774 Nickel and Cobalt Alloys
- AMS-H-7199 Rev. A Beryllium Copper
- AMS-2759 Rev. E (Including Sub-specifications 1,2,3,4,5)
- AMS-2759/6 (Heat Treating Portion)
- AMS-2759/9 Hydrogen Embrittlement
- AMS-2769 Rev.B Vacuum Heat Treating
- AMS-H-6875 Rev B. Raw Materials (MIL-H-6875 Rev. H is the predecessor)
- Aluminum Alloys – Customer Specs
- Aluminum Alloys – Industry Specs
- Beryllium Copper – Industry Specs
- Beryllium/Copper– Customer Specs
- Copper Alloys – Customer Specs
- Nickel and Cobalt Alloys – Industry Specs
- Nickel and Cobalt Alloys– Customer Specs
- Stainless Steels – Customer Specs
- Stainless Steels – Industry Specs
- Stainless Steels, Martensitic – Customer Specs
- Stainless Steels, Martensitic – Industry Specs
- Stainless Steels, Precipitation Hardening – Customer Specs
- Stainless Steels, Precipitation Hardening – Industry Specs
- Steels – Customer Specs
- Steels – Industry Specs
- Stress Relieve – Industry Specs
- Vacuum Heat Treating – Customer Specs
- Vacuum Heat Treating – Industry Specs
- Pyrometry – Industry Specs
Nadcap accreditation audits are typically administered over several days. The minimum Nadcap accreditation is 12 months. The maximum is 24 months. In late January 2018, NHT received Nadcap-accreditation for 24 months (12 months + 12 month merit). NHT is also accredited to ASTM E18 for hardness testing, using the Rockwell hardness scale as a gauge. NHT also has obtained AS9100 Rev. C and ISO 9001: 2008 certifications.
If the engineered drawing (blueprint) calls out AMS specifications, a Nadcap-accredited supplier should be used for those individual special processes. Also, some companies require a Nadcap-accredited supplier regardless of whether or not the parts processed at their facilities ultimately end up at an aerospace company. This makes it especially significant for NHT to adhere to Nadcap quality standards to maintain the utmost precision and value when it comes to heat treating services. Please visit https://www.nevadaheattreating.com/certifications-and-approvals/ for more information regarding NHTs latest compliances and accreditations.