Certifications
Fusion Welding
All Procedures are Type “A” GTAW-MA (Gas Tungsten Arc Weld-Manual)
PWA 16-1 (Carbon and Low Alloy Steels)
PWA 16-2 (Corrosion-resistance steels other than Precipitation Hardenable)
PWA 16-22 (Precipitation Hardenable, Corrosion-resistance steels)
PWA 16-222 (Cres. Precipitation Hardenable Alloys)
PWA 16-3 (Nickel and Non-precipitation Hardenable Nickel Alloys)
PWA 16-33 (Precipitation Hardenable Nickel Alloys)
PWA 16-37 (NI & NON PRECIP. HARD. NICKEL ALLOYS WELDED TO COBALT ALLOYS)
PWA 16-333 (NI & NON PRECIP. HARD. NI ALLOYS WELDED TO PRECIP. HARD. NI ALLOYS)
PWA 16-4 (Aluminum Alloys)
PWA 16-6 (Commercial Pure Titanium)
PWA 16-66 (Titanium Alloys)
PWA 16-66X (Titanium Alloys, Special Alloy Filler Metal Requirement)
PWA 16-7 (Cobalt ALLOYS)
PWA 16-777 (Cobalt to Nickel Alloys)
Resistance Welding
PWA 15 Seam Resistance Welding (Non Aluminum Thickness Range .015 - .123)
PWA 15 Spot Resistance Welding (Non Aluminum Thickness Range .015 - .123)
PWA 15 Spot Resistance Welding, Include P/N 2052022 and Similar
Brazing
AMS 2664 High Temp Manual Braze, Torch Braze.
AMS 2665 Low Temp Manual Braze, Torch Braze.
Fusion Welding
All Procedures are Type “A” GTAW-MA (Gas Tungsten Arc Weld-Manual) YC-3
CPW 24-1 (Carbon and Low Alloy Steels)
CPW 24-2 (Corrosion-resistance steels other than Precipitation Hardenable)
CPW 24-22 (Precipitation Hardenable, Corrosion-resistance steels)
CPW 24-3 (Nickel and Non-precipitation Hardenable Nickel Alloys)
CPW 24-33 (Precipitation Hardenable Nickel Alloys)
CPW 24-6 (Commercial Pure Titanium)
CPW 24-66 (Titanium Alloys)
CPW 24-7 (Cobalt ALLOYS)
Resistance Welding
CPW 23 Seam Resistance Welding (Non Aluminum Thickness Range .015 - .123) Spec YC-1
CPW 23 Spot Resistance Welding (Non Aluminum Thickness Range .015 - .123) Spec YC-1
Fusion Welding
All Procedures are GTAW-MA (Gas Tungsten Arc Weld-Manual)
AWS D17.1 / MIL-STD-2219
Carbon and Low Alloy Steels
Corrosion-resistance steels other than Precipitation Hardenable
Precipitation Hardenable, Corrosion-resistance steels
Cres. Precipitation Hardenable Alloys
Nickel and Non-precipitation Hardenable Nickel Alloys
Precipitation Hardenable Nickel Alloys
NI & NON PRECIP. HARD. NICKEL ALLOYS WELDED TO COBALT ALLOYS
NI & NON PRECIP. HARD. NI ALLOYS WELDED TO PRECIP. HARD. NI ALLOYS
Aluminum Alloys
Commercial Pure Titanium
Titanium Alloys
Titanium Alloys, Special Alloy Filler Metal Requirement
Cobalt ALLOYS)
Cobalt to Nickel Alloys
Brazing
SS8731 / MIL-B-7883
Fusion Welding
All Procedures are GTAW-MA (Gas Tungsten Arc Weld-Manual)
AWS D17.1
MIL-STD 2219
HS 191 CL1A
HS 191 CL1B
HS 191 CL1C
HS 191 CL2A
HS 191 CL2B
HS 191 CL3
Brazing
PN 05.41
Mil-B-007883
Resistance Welding
AMS-W-6858
AWS D17.2
HS 3944
HS 91
MIL-W-6858
SAE-AMS-W-6858
Brazing
HS 198 TYA3
PN 05.41
Mil-B-007883
Fusion Welding
All Procedures are GTAW-MA (Gas Tungsten Arc Weld-Manual)
ASME NQA-1 Quality Assurance Requirements for Nuclear Facility Applications
PQR-1 Procurement Quality Requirements
QCS-2 Supplier Quality System Requirements Level I
QCS-3 Supplier Quality System Requirements Level III
QCS-4 Supplier Quality System Requirements Level II
10CFR21 (Appendix B part 50 Quality assurance Criteria for Nuclear Power Plants and Fuel Reprocessing Plants)
Fusion Welding
All Procedures are GTAW-MA (Gas Tungsten Arc Weld-Manual)
Processor Basic Quality System for D1-4426 approval only Quality System / Process Code: 001 / Specification Title: Processor Quality System
Fusion Welding - CRES Heat Resist Nickel - Cobalt Alloys BAC 5975 / Process Code: 201 / Specification Title: Fusion Welding of Metals
Fusion Welding for Aerospace Applications - Aluminum Alloys MIL-STD-2219 / Process Code: 211 / Specification Title: Fusion Welding for Aerospace Applications
Fusion Welding for Aerospace Applications - Aluminum Alloys AMS-STD-2219 / Process Code: 211B / Specification Title: Fusion Welding for Aerospace Applications
Fusion Welding for Aerospace Applications - Aluminum Alloys MIL-W-8604 / Process Code: 211C / Specification Title: Fusion Welding for Aerospace Applications
Fusion Welding - Titanium - Titanium Alloys BAC 5975 / Process Code: 214 / Specification Title: Fusion Welding of Metals
Resistance Welding
Resistance Welding - Steel Alloys BAC 5977 / Process Code: 220 / Specification Title: Resistance: Spot/Roll Spot/Seam
Resistance Welding - Ni. - Co. Base Alloys BAC 5977 / Process Code: 222 / Specification Title: Resistance: Spot/Roll Spot/Seam
Resistance Welding - Aluminum Alloys MIL-W-6858 / Process Code: 231 / Specification Title: Resistance Welding: Spot – Seam
Resistance Welding - Titanium Alloys BAC 5977 / Process Code: 234 / Specification Title: Resistance: Spot/Roll Spot/Seam
Resistance Welding - Titanium Alloys MIL-W-6858 / Process Code: 235 / Specification Title: Resistance Welding: Spot – Seam
Silver Brazing of Steel Copper Nickel - Cobalt Alloys - Torch- Induction BAC 5940 / Process Code: 251 / Specification Title: Silver Brazing
Other
Metallurgical Testing Met. Testing / Process Code: 803 / Specification Title: Metallurgical Testing
Rolls Royce Corp. Sub Tier Supplier (RRU6)
Fusion Welding
All Procedures are GTAW-MA (Gas Tungsten Arc Weld-Manual)
EDS 1306
EPS 14500
AWS D17.1
EIS 1200 Acceptance Criteria for Fusion Welding
EPS 14530 Fusion Welding
RESISTANCE WELDING, SPOT AND SEAM
EPS 14520 Resistance Welding (spot and seam) of Ferrous, Nickel and Cobalt Base Alloys
EPS14523 Projection Welding
Fusion Welding
All Procedures are GTAW-MA (Gas Tungsten Arc Weld-Manual)
A10458 AWS D17.1
MIL-STD-2219
Resistance Welding, Spot , Seam and Stitch
Mil-W-6858D
Fusion Welding
All Procedures are GTAW-MA (Gas Tungsten Arc Weld-Manual)
MIL-STD-278
AWS D17.1
National Aerospace and Defense Contractors Accreditation Program
Scope of Compliance – Aerospace Quality Systems
AC7004-Rev. D- Nadcap Criteria for Inspection and Test Quality System
Certification Number 128518
Scope of Accreditation – Welding
Certification Number 128519
AC7110 Rev. D- Nadcap Audit Criteria for Welding/Brazing
AC7110/5 Rev. E- Nadcap Audit Criteria for Fusion Welding
Supplement D - Titanium (Additional requirements)
Supplement F - Filler Materials (Additional Requirements)
Supplement G - Processes using Gas(examples...GTAW, PAW)(Additional Requirements)
Supplement J - Tack Welding (Additional requirements)
Supplement F - Traceability of Filler Material Heat Lot (Additional requirements)
AC7110/12 Rev. A- Nadcap Audit Criteria for Welder/Welding Operator Qualification
Supplement A - Qualification of titanium welders (Additional requirements)
AC7110/4 Rev. E- Nadcap Audit Criteria for Resistance Welding.
(Spot, Seam, Projection, Stitch)
Seam Welding
Spot Welding
Supplement A - Aluminum/Magnesium (Additional Requirements)
Supplement B - Shear Testing (Additional Requirements)
AC7110/13 - DEC-06
Supplement D - Evaluation of Resistance Welds
In-process approvals
If you don’t see what you are looking for give us a call. Lynn Welding may be in the process of obtaining additional approvals and this sheet may not be updated yet. Also Lynn Welding can obtain approvals for your specific customers if needed. Call us and let us know what other approvals you would like to see.
