Welding Services
Armor Plate Welding Services
MIL-SPEC certified armor plate welding for defense vehicles, ballistic structures, and armored enclosures. Full NDT inspection included.
Gallery
Welding in Progress
NDT Weld Inspection
Overview
Professional Armor Plate Welding Services — Certified & Combat-Proven
Dengtai provides MIL-SPEC certified armor plate welding services for military vehicles, ballistic enclosures, naval armor systems, and security infrastructure. Our welding shop is equipped with 12 robotic welding stations and 8 manual stations operated by AWS-certified welders with a minimum of 8 years of armor-grade experience.
We weld all common armor steel grades including AR400, AR500, MIL-12560, MIL-46100, Hardox 400/450/500, and high-hardness ballistic steels up to 80 mm thickness. Our welding procedures are qualified to AWS D1.1 (Structural Welding) and AWS D1.6 (Welding of Stainless Steel), with ISO 3834-2 certification for full quality control traceability.
Every weldment undergoes 100% NDT inspection — ultrasonic testing (UT) for volumetric defects, magnetic particle testing (MT) for surface cracks, and visual inspection (VT) per AWS D1.1 acceptance criteria. We provide full documentation including WPS, PQR, welder certifications, and NDT reports with every shipment.
AWS-certified armor plate welding at Dengtai MIL-SPEC facility
Specifications
Technical Specifications
Dimensions
| Parameter | Value |
|---|---|
| Welding Processes | GMAW (MIG), FCAW, GTAW (TIG), SAW, Robotic MIG |
| Qualified Standards | AWS D1.1, AWS D1.6, ISO 3834-2, MIL-STD-1685A, MIL-STD-2196A |
| Armor Materials | AR400, AR500, AR550, MIL-12560, MIL-46100, Hardox 400/450/500, Weldox 700/900 |
| Thickness Capability | 3 mm – 80 mm single-pass; up to 120 mm with multi-pass procedure |
| NDT Methods | Ultrasonic Testing (UT) per ASTM E114, Magnetic Particle (MT) per ASTM E709, Visual (VT) per AWS D1.1 |
| Weld Position | 1G (Flat), 2G (Horizontal), 3G (Vertical), 4G (Overhead), 5G (Pipe) |
| Production Capacity | 20 metric tons of welded armor per month across 20 welding stations |
| Certification Documentation | WPS, PQR, WPQ, NDT reports, material certs (MTR), full lot traceability |
Features
Features & Benefits
AWS & ISO Dual-Certified Welding
All welding procedures are qualified under AWS D1.1 / D1.6 and ISO 3834-2. Our welders hold current AWS certification with annual recertification. Process documentation is available for customer audit at any time.
Pre-Heating & Interpass Control
For high-hardness armor steels (AR500+), we implement controlled pre-heating (150-250°C depending on grade), interpass temperature monitoring, and post-weld hydrogen bake-out to eliminate cold cracking and HAZ embrittlement.
100% Non-Destructive Testing
Every weld is inspected using ultrasonic testing (UT) for internal defects, magnetic particle (MT) for surface cracks, and visual inspection (VT) with digital documentation. Rejection rate target is < 0.5%.
Robotic & Manual Hybrid Shop
12 robotic welding cells handle repeatable seams with ±0.1mm positional accuracy, while 8 manual stations provide flexibility for complex geometries and field repair welding. This hybrid model optimizes both quality and lead time.
Full Material Traceability
Each weldment is tracked via serial number to its mill test report (MTR), weld procedure (WPS), welder (WPQ), and NDT inspection record. Complete documentation package ships with every order.
Distortion Control Expertise
Proprietary sequencing and fixturing techniques minimize thermal distortion in large armor weldments. Post-weld stress relief and dimensional verification ensure finished parts meet drawing tolerances of ±1 mm over 3 meters.
Applications
Where It Installs
Military Vehicle Armor
Welding of cope cages, slat armor, hull panels, and turret assemblies for MRAPs, IFVs, and light tactical vehicles.
Ballistic Enclosures & Shelters
Welded armor plate for guard towers, bunkers, command centers, and portable ballistic shelters.
Naval Armor Systems
Welding of naval armor plate, shipboard ballistic protection, and marine-grade corrosion-resistant assemblies.
Armored Civilian Vehicles
Welded armor plate for VIP limousines, cash-in-transit vehicles, and civilian ballistic upgrade packages.
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