API 6A 6BX High-Pressure Flanges

✅ API 6A 6BX High-Pressure Flanges – Supplied by SSM

SSM supplies API 6A 6BX High-Pressure Flanges, engineered for use in extreme pressure environments such as oilfield wellhead and Christmas tree equipment. Manufactured to API 6A specifications, 6BX flanges are designed for critical service in upstream oil and gas applications.

📘 What is API 6A 6BX?

API 6A is the American Petroleum Institute standard for wellhead and Christmas tree equipment.
6BX flanges are designed for high-pressure ratings and differ from 6B flanges by requiring a metal-to-metal seal and RTJ (Ring-Type Joint) face.

📐 Specifications:

Standard: API 6A, 21st Edition or latest

Type: 6BX Flange – High-pressure, restricted-bore, RTJ-type connection

Pressure Classes:

5,000 psi

10,000 psi

15,000 psi

Nominal Sizes: 1-13/16" to 11"

Face Type: RTJ (Ring Type Joint)

Bore Type: Restricted bore for enhanced pressure containment

🔩 Materials Available:

Carbon Steel: ASTM A105, A350 LF2

Low-Alloy & High-Strength Steel: AISI 4130, AISI 4140, F22

Stainless & CRA (Corrosion-Resistant Alloys): Inconel, Incoloy, Duplex, Super Duplex, etc.

Supplied with NACE MR0175 compliance for sour service (optional)

🏭 Applications:

Oilfield wellhead assemblies

Blowout preventer (BOP) systems

Christmas trees

Subsea drilling equipment

High-pressure, high-temperature (HPHT) systems

📄 Certifications & Quality Assurance:

Fully compliant with API 6A specifications

Supplied with API monogram (if applicable)

Traceable heat numbers and EN 10204 3.1 / 3.2 Mill Test Certificates

Optional NACE MR0175, ISO 15156, and custom inspection packages

📦 Why Choose SSM for API 6A 6BX Flanges?

Precision-machined flanges for critical sealing performance

Pressure-tested and inspected for oilfield reliability

Full material traceability and quality control

Global delivery with fast lead times

Customized materials and sizes available

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