Haihao Group Delivers ASTM A182 F304 Tube Sheets and Custom Flanges for Thailand Heat Exchanger Project
Haihao Group has recently completed the production and shipment of a batch of ASTM A182 F304 tube sheets and custom-machined flanges for a customer in Thailand. Manufactured strictly according to the customer’s engineering drawings, the products are intended for a heat exchanger application where machining accuracy and dimensional consistency are critical.
To ensure every component fully met the project specifications, Haihao Group carried out 100% final inspection, including complete verification of tube hole diameters before shipment. This meticulous quality control reflects our commitment to delivering precision-engineered products for demanding industrial applications.
Product Specification
| Product | Dimensions | Material | Standard | Inspection Requirement |
| Tube Sheet | OD 994 mm × Thickness 48 mm 536 Holes Ø25.7 mm (+0.05 / -0.10) |
ASTM A182 F304 | Manufactured to Customer Drawing | 100% Inspection Including Hole Diameter Verification |
| Tube Sheet | OD 994 mm × Thickness 48 mm 536 Holes Ø25.7 mm (+0.05 / -0.10) |
ASTM A182 F304 | Manufactured to Customer Drawing | 100% Inspection Including Hole Diameter Verification |
| Custom Flange | OD 994 mm × ID 850 mm 10 mm Nozzle Connection |
ASTM A182 F304 | Manufactured to Customer Drawing | 100% Dimensional Inspection |
Precision-Machined ASTM A182 F304 Tube Sheets
The core products in this shipment are ASTM A182 F304 tube sheets, designed for shell-and-tube heat exchanger service. Precision machining is essential because the positioning and diameter tolerance of every tube hole directly affect tube expansion, welding quality, sealing performance, and long-term equipment reliability.
Each ASTM A182 F304 tube sheet was CNC machined from forged stainless steel and manufactured in strict accordance with the customer’s drawings. Every plate contains 536 precision-machined tube holes with a specified diameter of 25.7 mm and a tight tolerance of +0.05 mm / -0.10 mm, ensuring excellent assembly accuracy.
ASTM A182 F304 tube sheets with 536 precision machined holes and custom A182 F304 flange
Complete Dimensional Verification Before Shipment
For heat exchanger components, dimensional accuracy cannot rely on sampling alone. Therefore, Haihao Group implemented 100% inspection throughout the final quality control process.
Inspection included:
- Overall outside diameter verification
- Plate thickness measurement
- Tube hole diameter inspection
- Hole quantity confirmation
- Hole distribution verification
- Surface finish inspection
- Material identification and traceability
- Final visual inspection before packaging
Special attention was paid to the tube hole dimensions to guarantee every ASTM A182 F304 tube sheet fully complied with the engineering drawings before delivery.
Custom Stainless Steel Flange Manufactured to Customer Drawings
Along with the tube sheets, Haihao Group also produced a custom stainless steel flange featuring an outside diameter of 994 mm, an inside diameter of 850 mm, and a 10 mm nozzle connection. Unlike standard pipeline flanges, this component was manufactured entirely according to the customer’s design requirements.
Haihao Group’s machining capabilities enable the production of customized forged components with strict dimensional tolerances for pressure vessels, heat exchangers, petrochemical equipment, and other industrial systems.
Why ASTM A182 F304 Is Widely Used
ASTM A182 F304 tube sheets are commonly selected for heat exchanger applications because they provide:
- Excellent corrosion resistance in industrial environments
- Good mechanical strength
- Outstanding weldability
- Stable performance at elevated temperatures
- Long service life with low maintenance requirements
These advantages make ASTM A182 F304 one of the preferred materials for petrochemical plants, refineries, chemical processing facilities, power stations, and food processing equipment.
ASTM A182 F304 tube sheets with 536 precision machined holes and custom stainless steel flange manufactured by Haihao Group
Haihao Group Supports Customized Machining Projects Worldwide
Beyond standard flanges and pipe fittings, Haihao Group manufactures a wide range of customized forged and machined products based on customer drawings. From raw material procurement to CNC machining, dimensional inspection, documentation, and export packaging, every production stage is carefully managed to ensure reliable quality.
Whether your project requires ASTM A182 F304 tube sheets, custom flanges, forged components, or other precision-machined stainless steel products, Haihao Group can provide complete manufacturing support, strict inspection procedures, and on-time global delivery.