ASME B16.5 Flanges, Stud Bolts and Gaskets Supplied to Iraq Oil & Gas Project
Haihao Group has successfully completed the supply of ASME B16.5 flanges, high-strength stud bolts, and industrial gaskets for a pipeline project in Iraq. All products were manufactured and inspected in accordance with international standards and NACE MR0175, ensuring reliable performance in demanding oil and gas service conditions.
This shipment supports critical pipeline connections where sealing integrity, pressure resistance, and material compliance are essential.
Blind flange RF with NPT tapped hole ASME B16.5
Carbon Steel Weld Neck and Blind Flanges for Pipeline Systems
The order includes a range of carbon steel flanges designed for different pipeline sizes and pressure classes:
- Weld Neck Flange (WN RF)
- Sizes: 8″ & 24″
- Pressure Class: 150 LB
- Pipe Schedule: STD / SCH 40 / SCH XS (SCH 80)
- Material: ASTM A105N
- Standard: ASME B16.5, NACE MR0175
- Blind Flange RF with NPT Tapped Hole
- Size: 4″
- Pressure Class: 300 LB
- Material: ASTM A105
- Special Feature: 1″ NPT drilled & tapped hole
- Standard: ASME B16.5, NACE MR0175
These ASME B16.5 weld neck flanges provide excellent strength and stress distribution, making them suitable for long-term operation in Iraqi oil and gas pipeline networks.
ASTM A193 B7M stud bolts with A194 2HM nuts hot dip galvanized
ASTM A193 B7M Stud Bolts for Sour Service Applications
To ensure secure flange connections, Haihao Group supplied high-strength stud bolts suitable for sour service environments:
- ASTM A193 Grade B7M stud bolts
- Sizes:
- 1-1/2″ diameter × 280 mm length
- 1-1/4″ diameter × 300 mm length
- Supplied with ASTM A194 Grade 2HM heavy hex nuts
- Hot-dip galvanized in accordance with ASTM F2329
- Thread Standard: ASME B1.1
These B7M stud bolts with 2HM nuts are widely used in NACE MR0175 compliant flange assemblies, offering controlled hardness and corrosion resistance for oil and gas service.
Compressed Non-Asbestos Fiber and Neoprene-Steel Gaskets
The shipment also includes various industrial gasket materials to meet sealing requirements under different operating conditions:
- Compressed Non-Asbestos Fiber (CNAF) Gaskets
- Materials: KLINGERSIL C4400 & C4430 or equivalent
- Sizes:
- 2 m × 1.5 m × 2 mm / 3 mm
- 1.5 m × 1.5 m × 2 mm / 3 mm
- Neoprene-Steel Flange Gasket
- Size: 1″, Class 150 LB
- Thickness: 3.0 mm
- Type: KROLL & ZILLER G-ST-P/S or equivalent
- Standards: ASME B16.5, ASME B16.21, NACE MR0175
These non-asbestos fiber gaskets and neoprene-steel gaskets ensure reliable sealing performance while meeting environmental and safety requirements.
One-Stop Flange and Gasket Supplier
With years of export experience in the Middle East market, Haihao Group provides complete flange joint solutions, including flanges, bolting, and gaskets, for oil and gas projects in Iraq.
Our advantages include:
- Full compliance with ASME, ASTM, and NACE standards
- Stable quality control and material traceability
- Project-oriented packaging and documentation
- Reliable delivery for EPC and pipeline contractors