Grape Enterprises specializes in precision tubesheet drilling across diverse material grades including exotic alloys, stainless steel, low alloy steel, and carbon steel.
Our CNC Deep Hole Drilling machines and experienced team ensure exceptional quality regardless of material complexity or project requirements.
Comprehensive Material Capabilities
Grape Enterprises specializes in precision tubesheet drilling across diverse material grades including exotic alloys, stainless steel, low alloy steel, and carbon steel.
Our CNC Deep Hole Drilling machines and experienced team ensure exceptional quality regardless of material complexity or project requirements. Each material type receives customized drilling approaches optimized for precision.
Materials Handled
Exotic / Special Grade Materials
Our expertise extends to challenging exotic and special grade materials commonly used in high-performance industrial applications like aerospace and chemical processing.
| Material | Applications |
|---|---|
| Titanium / Cladded | Chemical processing, aerospace, marine |
| Hastelloy | Corrosive environments, chemical reactors |
| Naval Brass | Marine heat exchangers, condensers |
| Cupro Nickel | Seawater cooling systems, offshore |
| SS 904L | Sulfuric acid, pharmaceutical equipment |
| Inconel 625 | High-temperature, nuclear components |
Stainless Steel Grades
We handle a comprehensive range of stainless steel grades for various industrial requirements, from food processing to desalination plants.
| Grade | Properties | Applications |
|---|---|---|
| Duplex S31803 | High strength | Oil & gas |
| Duplex S32205 | Cl- resistance | Offshore, desalination |
| Austenitic 304/L | General purpose | Food, pharmaceutical |
| Austenitic 316/L | Superior corrosion | Marine, chemical |
| Austenitic 321 | High temperature | Heat exchangers |
| Austenitic 310 | Oxidation resistance | Furnace components |
Low Alloy & Carbon Steel
Specialized and standard steel materials for cost-effective and heavy-duty industrial solutions in power generation and oil sour service.
| Grade/Type | Characteristics | Applications |
|---|---|---|
| SA 266 Gr.2/4 | High strength alloy | Pressure vessels, boilers |
| Boiler Quality | High purity, weldable | Power generation |
| HIC Resistant | Hydrogen resistance | Sour service oil & gas |
| MS (Mild Steel) | General purpose | Structural components |
Why Material Expertise Matters
- Specialized Tooling: Material-specific BTA sizes and drilling parameters
- Optimized Processes: Customized drilling approaches for each material
- Quality Assurance: NABL-certified instruments verify hole accuracy
- Experienced Team: Understanding material-specific challenges
Quality Control
NABL-certified instruments ensure precision across all grades:
- Vernier Calipers: 0-300mm and 20-2000mm ranges
- Micrometers: 0-25mm and 25-50mm ranges
- Inside Dial Gauges: 0-25mm range
- Inside Micrometers: 100-1200mm range
- Plug Gauges (Go & NoGo): Multiple sizes verification
OUR CAPABILITIES BY MATERIAL TYPE
| Capability | Exotic Grades | Stainless Steel | Low Alloy Steel | Carbon Steel |
|---|---|---|---|---|
| Max Diameter | 3 meters | 3 meters | 3 meters | 3 meters |
| Max Thickness | 800 mm | 800 mm | 800 mm | 800 mm |
| Tolerance | ±0.02mm | ±0.02mm | ±0.02mm | ±0.02mm |
| Hole Sizes | Ø16.12-Ø32.08 | Ø16.12-Ø32.08 | Ø16.12-Ø32.08 | Ø16.12-Ø32.08 |
Need Help Choosing the Right Material?
Our expert team provides guidance based on your specific application requirements: