DRAFT Attachment 0159 - Welding Standards(3).doc

UNCLASSIFIED

Draft Attachment 0159

Welding Standards October 2021

Distribution Statement A – Approved for Public Release; distribution unlimited

1.0 Welding Requirements

1.1 Weld Standards:

Welds shall be free from defects indicative of poor workmanship. All welding shall be in accordance with the following documents listed in Table 1. The edition (year) to be used shall be the year in effect at time of solicitation release date. If new materials are to be used that do not follow the guidelines in the applicable standard in Table 1, then the Contractor is responsible to demonstrate the correct standard to the Procuring Contract Office (PCO) for engineering approval

1.2 Alternate Welding Standards:

Subject to PCO written engineering approval, the Contractor may utilize alternate standards or codes once the Contractor or Contractor's suppliers have demonstrated that equivalent or better quality and performance can be obtained by their use. It is the Contractor's responsibility to demonstrate such equivalence to the Government. If the Contractor's component supplier shall not release specific proprietary information, the Government reserves the right to conduct an on-site review of the Contractor's supplier(s) quality system and weld processes to verify the capability of producing acceptable welds. The Government reserves the right to approve/disapprove the use of any and all such alternative weld standards and specifications. The demonstrated equivalent shall be verified prior to fabrication of any weldment under Governmental guidance.

1.3 Armor Steel Heat Affect Zone (HAZ) Hardness Test:

When required, materials covered under MIL- DTL-46100, Armor Plate, Steel, Wrought, and High-Hardness (HH) or MIL-DTL-12560 Rolled Homogenous Armor (RHA) are utilized on the vehicle, the following requirements shall apply for this steel: On any ballistic surface 5/8 inch (15.9mm) from the toe of the weld, at any location of weldment, the Brinell hardness shall not be lower than that permitted minimum hardness requirements if the materials are qualified under MIL-DTL-46100 or MIL-DTL-12560.

Table 1

STRUCTURAL WELDING STANDARDS

AUTOMOTIVE WELDING STANDARDS

ROBOTIC WELDING STANDARDS

WELDING STANDARDS FOR OTHER APPLICATIONS

MILITARY WELDING STANDARDS

Arc Welding of Armor Grade Steel

Arc Welding of Armor Grade Aluminum

BOILER AND PRESSURE VESSEL CODE

UNCLASSIFIED