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Lynn Welding Approvals
Industry Specific Welding
Lynn Welding provides NADCAP Approved GTAW Welding & NADCAP Brazing services.
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Lynn Welding provides NADCAP approved welding services for most aerospace primes. Lynn Welding has 16 NADCAP approved welders and 18 Nadcap approved resistance spot welding machines. We have an excellent reputation throughout the aerospace community, and we are known as the most responsive and transparent aerospace welding company. Lynn Welding has certified welding inspectors (CWI’s) on staff which is now becoming a requirement from various aerospace primes.
The comprehensive list below features all of our current approvals and certifications. Our impressive approval list features some of the most well-known aerospace and defense organizations. Our quality team works around the clock to ensure we are always adding new approvals to this list.
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Certifications & Approvals
MASTER LIST
Learn more about our scope of accreditation
Fusion Welding
Industry-Wide Approvals
- AWS D1.1
- AWS D1.2
- AWS D1.3
- AWS D1.4
- AWS D1.6
- AWS D1.9
- AWS D9.1
- AWS D17.1
- Mil-STD-2219
- AMS-STD-2219
- AMS 2685
- Ground Combat Vehicle welding code 12479550
General Electric
- P8TF3 (Gas Shielded Arc Welding, Inactive For New Designs Except For Tubing And Sheet Metal Brackets)
- P8TF11 (Gas Tungsten Arc, Gas Metal Arc And Plasma Arc Welding, GE Transportation Aviation Special Process Certification)
- P21TF6 (In-Process Welding Of Castings, GE Transportation Aviation Special Process Certification)
Raytheon Technologies
Pratt & Whitney
- PWA 16-1 (Carbon and Low Alloy Steels, Approved Fusion Welding)
- PWA 16-2 (Corrosion-resistance steels other than Precipitation Hardenable, Approved Fusion Welding)
- PWA 16-22 (Precipitation Hardenable, Corrosion-resistance steels, Approved Fusion Welding)
- PWA 16-222 (Cres. Precipitation Hardenable Alloys, Approved Fusion Welding)
- PWA 16-3 (Nickel and Non-precipitation Hardenable Nickel Alloys, Approved Fusion Welding)
- PWA 16-33 (Precipitation Hardenable Nickel Alloys, Approved Fusion Welding)
- PWA 16-37 (Ni & Non Precip. Hard. Nickel Alloys Welded To Cobalt Alloys, Approved Fusion Welding)
- PWA 16-333 (Ni & Non Precip. Hard. Ni Alloys Welded To Precip. Hard. Ni Alloys, Approved Fusion Welding)
- PWA 16-4 (Aluminum Alloys, Approved Fusion Welding)
- PWA 16-6 (Commercial Pure Titanium, Approved Fusion Welding)
- PWA 16-66 (Titanium Alloys, Approved Fusion Welding)
- PWA 16-666 (Titanium Alloys, Special Alloy Filler Metal Requirement, Approved Fusion Welding)
- PWA 16-7 (Cobalt ALLOYS, Approved Fusion Welding)
- PWA 16-733 (Cobalt to Nickel Alloys, Approved Fusion Welding)
Pratt & Whitney Canada
- CPW 24-1A (Carbon and Low Alloy Steels, Fusion Welding)
- CPW 24-2AJ (Corrosion-resistance steels other than Precipitation Hardenable, Fusion Welding)
- CPW 24-22A (Precipitation Hardenable, Corrosion-resistance steels, Fusion Welding)
- CPW 24-3AJ (Nickel and Non-precipitation Hardenable Nickel Alloys, Fusion Welding)
- CPW 24-33AJ (Precipitation Hardenable Nickel Alloys, Fusion Welding)
- CPW 24-6AJ (Commercial Pure Titanium, Commercial Pure Titanium)
- CPW 24-66AJ (Titanium Alloys, Fusion Welding)
- CPW 24-7A (Cobalt Alloys, Fusion Welding)
Sikorsky
- All Fusion Welding Procedures are AWS D17.1 and MIL-STD-2219
Leonardo
- All Fusion Welding Procedures are GTAW-MA (Gas Tungsten Arc Weld-Manual) AWS D17.1
Collins Aerospace
Boeing
United Launch Alliance
- AC 7004 / AS 9003 (NADCAP Accreditation to AS 9003, NADCAP AS 9003)
- AC7110/5 (Fusion Welding, NADCAP Fusion Welding)
Beechcraft
- 36B1 (Welding: Fusion - Aluminum Alloys, BS 510)
- 36C1 (Welding: Fusion - Magnesium, AMS-STD-2219)
- 36D1 (Welding: Fusion- Steel Alloys, BS 511)
- 36EA (Welding: Fusion-Titanium Alloys, BS 25272)
Rolls-Royce
- EDS 1306 (EDS 1306, EDS 1306)
- EPS 14500 (EPS 14500, EPS 14500)
- EIS 1200 Acceptance Criteria for Fusion Welding (EIS 1200 Acceptance Criteria for Fusion Welding, Acceptance Criteria for Fusion Welding)
- EPS 14530 Fusion Welding (EPS 14530 Fusion Welding, Fusion Welding)
General Dynamics
- All Fusion Welding Procedures are AWS D17.1 and MIL-STD-2219
Northrop Grumman
- All Fusion Welding Procedures are AWS D17.1 and MIL-STD-278
Gulfstream
- GAMPS 2302 Fusion Welding (GAMPS 2302 Fusion Welding, GAMPS 2302 Fusion Welding)
- 6.01 Fusion Welding (Titanium, Aluminum, Steel) (6.01 Fusion Welding (Titanium, Aluminum, Steel)
Kaman Aerospace
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All Fusion Welding Procedures are AWS D17.1
Resistance Welding
Industry-Wide Approvals
General Electric
Raytheon Technologies
Pratt & Whitney
- PWA 15 (Thickness Range .015 - .123, Seam Resistance Welding)
- PWA 15 (Thickness Range .009 - .123, Spot Resistance Welding)
Pratt & Whitney Canada
- CPW 23 (Non Aluminum Thickness Range .015 - .123, Resistance Seam Welding Spec YC-1)
- CPW 23 (Non Aluminum Thickness Range .015 - .123, Resistance Spot Welding Spec YC-1)
Sikorsky
- All Resistance welding procedures are AWS D17.2, AMS-W-6858, SAE-AMS-W-6858 and MIL-W-5858
Leonardo
- Spot welding spec (Spot welding, Spot welding spec STA-100-81-15 A)
- Resistance Spot Welding (Preparation of metals for resistance welding, Metallographic)
Collins Aerospace
Boeing
- BAC 5977 (Steel Alloys, Resistance Welding: Spot/Roll Spot/Seam
- BAC 5977 (Ni. - Co. Base Alloys, Resistance Welding: Spot/Roll Spot/Seam)
- BAC 5977 (Titanium Alloys, Resistance Welding: Spot/Roll Spot/Seam)
United Launch Alliance
Beechcraft
- 36F (Welding: Resistance - Aluminum Alloy, MIL-W-6858, AMS-W-6858)
- 36G (Welding: Resistance - Magnesium Alloy, MIL-W-6858, AMS-W-6858)
- 36H (Welding: Resistance - Nickel and Cobalt Alloy, MIL-W-6858, AMS-W-6858)
- 36I (Welding: Resistance - Steel Alloy, MIL-W-6858, AMS-W-6858)
- 36J (Welding: Resistance - Titanium Alloy, MIL-W-6858, AMS-W-6858)
- 36K (Welding: Seam, MIL-W-6858, AMS-W-6858)
Rolls-Royce
- EPS14520 (Resistance Welding, Spot & Seam, Ferrous, Nickel and Cobalt Base Alloys)
- EPS14523 (Projection Welding, Projection Welding)
General Dynamics
- All resistance welding procedures are MIL-W-6858D
Northrop Grumman
- All resistance welding procedures are MIL-W-6858
Gulfstream
Kaman Aerospace
- 241-2 (Resistance Spot & Seam Welding of metals and their alloys.,SAE-AMS-6858)
- 241-3 (Resistance Spot & Seam Welding of metals and their alloys., SAE-AMS-W-6858)
- 241-4 (Resistance Spot & Seam Welding of metals and their alloys., SAE-AMS-W-6858)
Bell Helicopter
Brazing
Industry-Wide Approvals
General Electric
- CD02 (CD – Brazing, M50T1;P9TF1;ANSI/AWSC3.4)
- M50T1 (CD – Brazing, CD02, Torch Brazing)
- P9TF1 (Brazing, GE Transportation Aviation Special Process Certification)
Raytheon Technologies
- All torch brazing procedures are AWS c3.4
Pratt & Whitney
- All torch brazing procedures are AMS 2665 and AMS 226
Sikorsky
Collins Aerospace
- HS 198 TYA3 (Torch Brazing, HS 198 TYA3)
- PN 05.41 (Torch/Induction Brazing, Collins Aerospace Approved Brazing)
- PN 05.41-11 (Torch Brazing, PN 05.41-11)
Boeing
United Launch Alliance
Gulfstream
Kaman Aerospace
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All Fusion Welding Procedures are AWS D17.1
Quality Control & Material Testing
Industry-Wide Approvals
- Certified quality control for all NADCAP-accredited welding procedures, including; aerospace & aircraft welding, aluminum welding, and titanium welding.
Boeing
United Launch Alliance
Gulfstream
Tell us about your next welding project
To learn more about Lynn Welding's welding capabilities and to receive a quote please submit a request below. All requests for quotes will be fulfilled within 24 business hours!